Hank describes mitosis and cytokinesis - the series of processes our cells go through to divide into two identical copies. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.facebook.com/youtubecrashcourse Follow CrashCourse on Twitter: http://www.twitter.com/thecrashcourse References for this video can be found in the Google document here: http://dft.ba/-2rVV Table of Contents 1. Mitosis 0:24 2. Interphase 3:27 a) Chromatin 3:37 b) Centrosomes 3:52 3) Prophase 4:14 a) Chromosomes 4:18 b) Chromatid 4:31 c) Microtubules 5:07 4) Metaphase 5:22 a) Motor Proteins 5:36 5) Biolography 6:13 6) Anaphase 9:00 7) Telophase 9:15 8) Cleavage 9:25 9) Cytokinesis 9:36 This video contains the following sounds from Freesound.org: "Swishes.wav" by Pogotron "Opening Scotch Whisky.mp3" by Percy Duke crashcourse, biology, mitosis, cell biology, cell division, cell, replication, splitting, chromosome, diploid cells, nucleus, DNA, prophase, metaphase, anaphase, telophase, interphase, chromatin, chromatid, centrosome duplication, centromere, microtubules, motor protein, walter flemming, tomomi kiyomitsu, dynein, cleavage, cytokinesis, daughter cells, science, education, college, university, learn, teach, hank green Support CrashCourse on Subbable: http://subbable.com/crashcourse
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Published on Oct 22, 2015 Nevada Radioactive Waste Facility Fire (October 2015) It could be some time before officials know what caused a fire at a low-level radioactive waste dump in Nye County that shut down a 140-mile stretch of Nevada's main north-south highway for almost 24 hours. U.S. Highway 95 reopened to traffic Monday evening after tests conducted from the air and on the ground showed no signs of radioactive contamination from the blaze that broke out Sunday afternoon at the US Ecology waste site about 110 miles northwest of Las Vegas. In a conference call Monday night, State Fire Marshal Chief Peter Mulvihill said investigators would be taking a close and methodical look at the site "once it is safe to go down there." He said it's still too early to know what might have sparked the fire, which was reported about 1 p.m. Sunday in one of the site's low-level radioactive waste disposal trenches and was allowed to burn itself out over the course of about 12 hours. Concerns about possible contamination from the fire prompted authorities to cancel school in the nearest town of Beatty and close U.S. 95 from state Route 160, about 70 miles northwest of Las Vegas, to the Nye County seat of Tonopah, 210 miles northwest of Las Vegas, about 7 p.m. Sunday. US Ecology officials said they created "an exclusion zone around the facility" at the request of state regulators, but storms in the area Sunday night delayed efforts to survey the site from the air. Federal aircraft that can detect radioactive particles conducted flights Monday morning, followed by a detection team on the ground that started in Beatty, 10 miles to the north, and worked its way to the waste facility. Once it was determined that the fire was out and the surrounding area was safe from radioactive contamination, the highway was reopened about 5:30 p.m. Monday, releasing a flood of vehicles that had been trapped overnight in Beatty. Mike Harmon, chief of the local volunteer fire department, said all of the motel rooms in town were filled with stranded travelers, and a line of vehicles a half-mile long was waiting at the road block for the highway to reopen. He guessed there were 30 to 40 tractor-trailers parked along the road and packed into various parking lots in the town of about 1,000 people. "It's pretty full," Harmon said. Before the fire, flooding on roads throughout the area had already prompted the Nye County School District to cancel classes Monday in Amargosa Valley, about 20 miles south of US Ecology. The two public schools in Beatty were closed Monday as a precautionary response to the fire, said Cameron McRae, the district's director of transportation, maintenance and operations. All Nye County schools were expected to open Tuesday. The US Ecology site has served as a dump for low-level radioactive waste and other hazardous materials since the early 1960s. From 1983 to 1992, solid low-level radioactive waste primarily from hospitals and university research labs was buried there in dirt-covered trenches. It came from Nevada, Colorado and New Mexico, the states that make up the Rocky Mountain Low-Level Radioactive Waste Board compact, according to Leonard Slosky, the board's executive director. US Ecology stopped accepting radioactive waste in 1992, but it still takes in about 100,000 tons of hazardous waste per year from out-of-state and in-state sources. A fire in one of the disposal trenches or in a facility near them would be "very unusual" because there are supposed to be no ignition sources in or around the waste, Slosky said. Mulvihill said the fire burned a 40-to-50-foot area of the 40-acre site on state-owned land. As part of their investigation, state officials said they will be looking at the overall stability of the more than 50-year-old dump. The fire prompted a coordinated emergency response from Nye County and from Nevada's Department of Health and Human Services, Department of Public Safety, Highway Patrol, State Fire Marshal, National Guard, Department of Transportation, and Division of Environment Protection. The U.S. Environmental Protection Agency also sent an on-scene coordinator to the site. In 2010, the EPA fined US Ecology nearly $500,000 for 18 hazardous waste violations. Reports on the violations said that on at least two occasions operators observed smoke coming from a soils decontamination heating unit that resulted in the release of hazardous compounds into the air. Inspectors also noted "six spills, leaks or other uncontrolled PCB discharges" between 2006 and 2008 that weren't reported as required by law, according to an EPA news release in 2010. PCBs, or polychlorinated biphenyls, are toxic, organic pollutants that persist in the environment. They were once widely used in electrical transformers and capacitors but are no longer produced in the United States. By Henry Brean and Keith Rogers Las Vegas Review-Journal
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In this day and age, we and our gadgets are limited by the archaic ways we store our power. Tech guru Brad Templeton explains that a breakthrough in battery technology would spark an exciting wave of innovation and enable the future of computing to be realized. Read more at BigThink.com: http://goo.gl/g7zLdQ Follow Big Think here: YouTube: http://goo.gl/CPTsV5 Facebook: https://www.facebook.com/BigThinkdotcom Twitter: https://twitter.com/bigthink Transcript: One of the biggest barriers in making computers faster is how much power they consume. And in fact, one thing that stopped your computer from having a faster clock rate, where it used to be it was another gigahertz every year you double that clock rate, is that that requires a lot of energy. And it's so much that your chips would melt if we ran them a lot faster. And if you looked inside a modern desktop computer you've probably seen it's got a big tower with silver veins and fan blowing on it. That's to get all the heat out. And that's making it hard to make the desktop computers faster. In your pocket you're limited by what the battery can do. And we have had better battery chemistries over time, but again this is an area where breakthroughs are needed for cars, as well as for devices we have in our pockets, and even for storing power that's generated from the power grid. We really would love to switch to renewal power like solar and wind, but the problem is that these only come when the sun is shining or the wind is blowing and so you need to store the power to use at a later time and that's actually a pretty difficult challenge. Batteries are one potential way to do it, pumping water uphill is a way to do it if you have reservoirs, but that itself presents its own some challenge. Now when you get down to the battery you've probably, if you've ever looked inside a modern phone, that is if you have one you can open anymore, you've probably seen that most of that phone is actually the battery. That's the thing which is giving you all the weight. It's the thing that makes an iPad hard to hold in your hands because it's got a big heavy battery. We would love to see improvement in that. There are lots of things in the lab, but there's a pretty important rule that people have come to understand. When someone tells you "I can do this in the lab. I can make it for a dollar a kilogram." Or whatever it is the price they think they can do, the correct answer says "Okay I'll order a bunch." And then I'll say "Oh wait I can't actually deliver them to you." So you have to really make it commercializiable before you can say you have it and that hasn't happened yet. Directed / Produced by Jonathan Fowler, Elizabeth Rodd, and Dillon Fitton
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Hank guides us through the process of natural selection, the key mechanism of evolution. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/theCrashCourse Table of Contents: 1) Natural Selection 1:27 2) Adaptation 2:56 3) Fitness 3:36 4) Four Principals 3:54 a. Variations 4:01 b. Heritability 4:17 c. "The Struggle for Existence" 4:25 d. Survival and Reproductive Rates 5:00 5) Biolography 5:59 6) Modes of Selection 7:40 a. Directional Selection 8:17 b. Stabilizing Selection 8:56 c. Disruptive Selection 9:27 7) Sexual Selection 10:22 8) Artificial Selection 11:24 References for this episode can be found in the Google document here: http://dft.ba/-2Ank This video uses the following sounds from Freesound.org: "20071104.forest.04.binaural.mp3" by dobroide "ForestBirds.wav" by HerbertBoland crashcourse, science, biology, natural selection, genetics, peppered moth, inherited traits, population genetics, charles darwin, darwin, on the origin of species, evolution, adaptation, galapagos finches, fitness, variation, phenotype, heritable, malthus, survival rate, reproductive rate, crossbreeding, inbreeding, genotype, directional selection, stabilizing selection, disruptive selection, selective pressures, sexual selection, artificial selection, selective breeding Support CrashCourse on Subbable: http://subbable.com/crashcourse
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Adam Wetzel singing out about the American antebellum economy!
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What happens to vehicles and their occupants in crashes is determined by science. "You can't argue with the laws of physics," says Griff Jones, award-winning high school physics teacher who goes behind the scenes at the Institute's Vehicle Research Center to explore the basic science behind car crashes. Using a series of vehicle maneuvers on a test track plus filmed results of vehicle crash tests, Jones explains in anything but lecture style the concept of inertia, the relationship between crash forces and inertia, momentum and impulse, and a lot more. Quote from Paul G. Hewitt, the developer of the "Conceptual Physics" curriculum and author of the best selling text book by the same name: "The video "Understanding Car Crashes: It's Basic Physics" and accompanying teacher's guide are wonderful. The pacing is excellent, the coverage fascinating, and most importantly, the physics is correct. It's a first rate teaching package. I give it five stars!" DVD contains updated footage and additional material for teachers To obtain a DVD copy, go to http://www.iihs.org/videos/default.html
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For the full DVD and further information on this title, please go to: http://pumpkin-interactive.co.uk/collections/science-and-psychology/products/forces-and-motion-the-physics-of-car-crashes Duration: 25 minutes / Year: 2015 / Age: 13-18 Bring Newton's three laws of motion to life with this DVD that uses extraordinary slow motion HD footage filmed during car crash testing to explore how energy is distributed during the fractions of a second when cars crash. The DVD explores ideas of inertia, resultant forces, energy and momentum, but applies it in the real world context of designing air bags, crumple zones and seats to protect the passenger. Suggested exam board specification links: -GCS Level- AQA GCSE Physics - Unit P1.2 - Forces and Their Effects OCR 21st Century Science GCSE Physics A - P4 - Explaining Motion Gateway Science GCSE Physics B - Module P3 - Forces for Transport Cambridge _ IGCSE Physics 1.2 - Motion 1.5 - Forces 1.6 - Momentum Edexcel International GCSE in Physics - Section 1 – Forces and Motion GCSE Physics - P2 – Physics for your Future -As/A2 Level- AQA - Set A - 4.1.1 Momentum AQA - Set B - 4.1.1 Momentum Edexcel - Set A - 4.3.1 Momentum OCR Physics A - G484 Newton’s Laws and Momentum
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Death is what fungi are all about. By feasting on the deceased remains of almost all organisms on the planet, converting the organic matter back into soil from which new life will spring, they perform perhaps the most vital function in the global food web. Fungi, which thrive on death, make all life possible. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse? http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse! http://www.twitter.com/TheCrashCourse Table of Contents 1) Biolography 02:07 2) Structure 04:53 3) The Decomposers 06:10 4) The Mutualists 06:38 5) The Predators 07:23 6) The Parasites 07:35 7) Reproduction 08:24 References for this episode can be found in the Google document here: http://dft.ba/-2i0c crashcourse, biology, hank green, fungi, fungus, detritivore, species, taxonomy, yeast, disease, death, organic matter, louis pasteur, biolography, beer, anaerobic respiration, fermentation, pasteurization, decompose, decomposition, soil, nutrient, recycle, mushroom, heterotroph, hyphae, chitin, mycelium, decomposer, mutualist, predator, parasite, enzyme, lignin, haustoria, mycorrhizae, sex, reproduction, spore, propagation, plasmogamy, asci, disperse, ascocarps, molds Support CrashCourse on Subbable: http://subbable.com/crashcourse
Просмотров: 806305 CrashCourse
Hot Air Balloons! They're those big, beautiful balloons people can float up to the sky in-- but how do they get up there?! ---------- Like SciShow? Want to help support us, and also get things to put on your walls, cover your torso and hold your liquids? Check out our awesome products over at DFTBA Records: http://dftba.com/SciShow Or help support us by becoming our patron on Patreon: https://www.patreon.com/scishow ---------- Looking for SciShow elsewhere on the internet? Facebook: http://www.facebook.com/scishow Twitter: http://www.twitter.com/scishow Tumblr: http://scishow.tumblr.com Instagram: http://instagram.com/thescishow SOURCES: http://howthingsfly.si.edu/ask-an-explainer/why-does-hot-air-rise https://www.reference.com/science/heat-rise-5d9601c90286bbbd http://science.howstuffworks.com/transport/flight/modern/hot-air-balloon.htm https://commons.wikimedia.org/wiki/File%3AHot_air_balloon_rising_above_the_clouds_2.JPG https://commons.wikimedia.org/wiki/File%3AHot_air_balloon.JPG https://commons.wikimedia.org/wiki/File%3AHot_air_balloon_in_Cappadocia_01.jpg https://commons.wikimedia.org/wiki/File%3AEspejo_(3207185886).jpg https://commons.wikimedia.org/wiki/File%3AThailand_(628536547).jpg https://commons.wikimedia.org/wiki/File%3ABrno%2C_krav%C3%AD_hora%2C_hot-air_balloon_starting_(13).JPG https://commons.wikimedia.org/wiki/File%3A2013-06-08_Heissluftballontechnik_HP_L4206.JPG
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http://www.ted.com Simon Sinek presents a simple but powerful model for how leaders inspire action, starting with a golden circle and the question "Why?" His examples include Apple, Martin Luther King, and the Wright brothers -- and as a counterpoint Tivo, which (until a recent court victory that tripled its stock price) appeared to be struggling. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/translate. Follow us on Twitter http://www.twitter.com/tednews Checkout our Facebook page for TED exclusives https://www.facebook.com/TED
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http://ThoriumRemix.com/ Thorium is an abundant material which can be transformed into massive quantities of energy. To do so efficiently requires a very different nuclear reactor than the kind we use today- Not one that uses solid fuel rods, but a reactor in which the fuel is kept in a liquid state. Not one that uses pressurized water as a coolant, but a reactor that uses chemically stable molten salts. Such a reactor is called a "Molten Salt Reactor". Many different configurations are possible. Some of these configurations can harness Thorium very efficiently. This video explores the attributes of Molten Salt Reactors. Why are they compelling? And why do many people (including myself) see them as the only economical way of fully harnessing ALL our nuclear fuels... including Thorium. This video has been under development since 2012. I hope it conveys to you why I personally find Molten Salt Reactors so compelling, as do the many volunteers and supporters who helped create it. Much of the footage was shot by volunteers. All music was created by: http://kilowattsmusic.com To support this project, please visit: https://patreon.com/thorium Entities pursuing Molten Salt Reactors are... Flibe Energy - http://flibe-energy.com/ Terrestrial Energy - http://terrestrialenergy.com/ Moltex Energy - http://www.moltexenergy.com/ ThorCon Power - http://thorconpower.com/ Transatomic - http://www.transatomicpower.com/ Seaborg - http://seaborg.co/ Copenhagen Atomics - http://www.copenhagenatomics.com/ TerraPower - http://terrapower.com/ Bhabha Atomic Research Centre - http://www.barc.gov.in/ Chinese Academy of Sciences - http://english.cas.cn/ Regular Thorium conferences are organized by: http://thoriumenergyalliance.com/ http://thoriumenergyworld.com/ Table of Contents 0:00:00 Space 0:17:29 Constraints 0:28:22 Coolants 0:40:15 MSRE 0:48:54 Earth 0:59:46 Thorium 1:22:03 LFTR 1:36:13 Revolution 1:44:58 Forward 1:58:11 ROEI 2:05:41 Beginning 2:08:36 History 2:38:59 Dowtherm 2:47:57 Salt 2:51:44 Pebbles 3:06:07 India 3:18:44 Caldicott 3:35:55 Fission 3:56:22 Spectrum 4:04:25 Chemistry 4:12:51 Turbine 4:22:27 Waste 4:40:15 Decommission 4:54:39 Candlelight 5:13:06 Facts 5:26:08 Future 5:55:39 Pitches 5:56:17 Terrestrial 6:08:33 ThorCon 6:11:45 Flibe 6:20:51 End 6:25:53 Credits Some of this footage is remixed from non-MSR related sources, to help explain the importance of energy for both space exploration and everyday life here on Earth. Most prominently... Pandora's Promise - https://youtu.be/bDw3ET3zqxk Dr. Neil DeGrasse Tyson - https://youtu.be/Pun76NZMjCk Dr. Robert Zubrin - https://youtu.be/EKQSijn9FBs Mars Underground - https://youtu.be/tcTZvNLL0-w Andy Weir & Adam Savage - https://youtu.be/5SemyzKgaUU Periodic Table Videos - https://youtube.com/channel/UCtESv1e7ntJaLJYKIO1FoYw
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What if we could find one single equation that explains every force in the universe? Dr. Michio Kaku explores how physicists may shrink the science of the Big Bang into an equation as small as Einstein's "e=mc^2." Thanks to advances in string theory, physics may allow us to escape the heat death of the universe, explore the multiverse, and unlock the secrets of existence. While firing up our imaginations about the future, Kaku also presents a succinct history of physics and makes a compelling case for why physics is the key to pretty much everything. Don't miss new Big Think videos! Subscribe by clicking here: http://goo.gl/CPTsV5 Kaku's latest book is The Future of the Mind: The Scientific Quest to Understand, Enhance, and Empower the Mind (http://goo.gl/kGrVaR). The Universe in a Nutshell: The Physics of Everything Michio Kaku, Henry Semat Professor of Theoretical Physics at CUNY The Floating University Originally released September, 2011. Directed / Produced by Jonathan Fowler, Kathleen Russell, and Elizabeth Rodd
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Hank takes us on a trip around the body - we follow the circulatory and respiratory systems as they deliver oxygen and remove carbon dioxide from cells, and help make it possible for our bodies to function. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse? http://www.facebook.com/YouTubeCrashCourse Follow us! http://www.twitter.com/TheCrashCourse Table of Contents 1) Respiratory System 00:48 2) Simple Diffusion 00:55 3) Respiratory Anatomy 02:35 a) Trachea to Capillaries 03:10 4) Lung Function & Thoracic Diaphragm 04:37 5) Circulatory System 05:35 6) Circulatory Anatomy 05:54 a) Left Ventricle to Capillary Beds 06:50 b) Veins to Left Atrium 08:46 7) Endotherms & Ectotherms 09:20 References for this episode can be found in the Google document here: http://dft.ba/-3cHg This video uses the following sounds from Freesound.org: "00559 deep breathing 1.wav" by Robinhood76 crash course, crashcourse, biology, animals, oxygen, carbon dioxide, cellular respiration, circulatory system, respiratory system, circulation, respiration, heart, lung, artery, vein, pulmonary, simple diffusion, membrane, lungfish, larynx, trachea, bronchus, bronchiole, alveolus, capillary, blood, inhale, exhale, diaphragm, thoracic, pressure, breathing, breath, pump, red blood cell, four chambered heart, ventricle, muscle, aorta, vena cava, atrium, endotherm, ectotherm, hank green Support CrashCourse on Subbable: http://subbable.com/crashcourse
Просмотров: 1698830 CrashCourse
The global economy is in crisis. The exponential exhaustion of natural resources, declining productivity, slow growth, rising unemployment, and steep inequality, forces us to rethink our economic models. Where do we go from here? In this feature-length documentary, social and economic theorist Jeremy Rifkin lays out a road map to usher in a new economic system. A Third Industrial Revolution is unfolding with the convergence of three pivotal technologies: an ultra-fast 5G communication internet, a renewable energy internet, and a driverless mobility internet, all connected to the Internet of Things embedded across society and the environment. This 21st century smart digital infrastructure is giving rise to a radical new sharing economy that is transforming the way we manage, power and move economic life. But with climate change now ravaging the planet, it needs to happen fast. Change of this magnitude requires political will and a profound ideological shift. To learn more visit: https://impact.vice.com/thethirdindustrialrevolution Click here to subscribe to VICE: http://bit.ly/Subscribe-to-VICE Check out our full video catalog: http://bit.ly/VICE-Videos Videos, daily editorial and more: http://vice.com More videos from the VICE network: https://www.fb.com/vicevideo Click here to get the best of VICE daily: http://bit.ly/1SquZ6v Like VICE on Facebook: http://fb.com/vice Follow VICE on Twitter: http://twitter.com/vice Follow us on Instagram: http://instagram.com/vice Download VICE on iOS: http://apple.co/28Vgmqz Download VICE on Android: http://bit.ly/28S8Et0
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Hank describes why plants are so freaking amazing - discussing their evolution, and how their cells are both similar to & different from animal cells. Crash Course Biology now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/thecrashcourse This video uses sounds from Freesound.org, a list of which can be found, along with the CITATIONS for this video, in the Google Document here: http://dft.ba/-22aJ Table of Contents annotations: 1. Re-watch the whole video 0:00 2. Introduction 0:00 3. Plant Evolution 0:56 4. Eukaryotic vs. Prokaryotic Cells 2:33 5. Cellulose and Lignin 3:58 6. Plastids and Chloroplasts 7:05 7. Central Vacuole 8:10 TAGS: crashcourse, biology, hank green, plants, plantae, chemistry, energy, learn, course, lycophyte, scale tree, carboniferous, angiosperm, eukaryotic, nucleus, prokaryotic, membrane, cytoplasm, organelle, cellulose, lignin, energy, photosynthesis, plastid, chloroplast, central vacuole, turgor pressure Support CrashCourse on Subbable: http://subbable.com/crashcourse
Просмотров: 1944579 CrashCourse
Hank tells us about the city of Eukaryopolis - the animal cell that is responsible for all the cool things that happen in our bodies. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like SciShow on Facebook: http://www.facebook.com/scishow Follow SciShow on Twitter: http://www.twitter.com/scishow More info. on the structures described in this video linked to in the Google Document here: http://dft.ba/-1TR_ Table of Contents time codes 1) Robert Hooke 1:59 2) Cilia/Flagella 2:52 3) Cell Membrane 3:32 4) Cytoplasm/Cytoskeleton/Centrosomes 3:58 5) Endoplasmic Reticulum 4:41 6) Ribosomes 5:45 7) Golgi Apparatus 6:00 8) Lysosomes 6:47 9) Nucleus 7:06 10) Mitochondria 9:14 TAGS: crashcourse, biology, animal cells, cell membrane, eukaryote, eukaryotic, organelle, organ, tissue, muscle, nerve, animalia, robert hooke, cilia, flagella, microtubules, cytoplasm, ctyoskeleton, centrosome, nucleus, nucleoplasm, nucleolus, endoplasmic reticulum, ribosome, amino acid, polypeptide, golgi apparatus, golgi, lysosomes, DNA, chromatin, rRNA, mRNA, mitochondria Support CrashCourse on Subbable: http://subbable.com/crashcourse
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This video uses animation, graphics, and video clips to illustrate and explain each of the "flow" and "storage" processes in the Hydrologic Cycle, more commonly known as the Water Cycle: precipitation, interception, runoff, infiltration, percolation, groundwater discharge, evaporation, transpiration, evapotranspiration, and condensation.
Просмотров: 1574033 National Science Foundation
Hank takes us on the fascinating journey through our excretory system to learn how our kidneys make pee. Crash Course Biology is now available on DVD! http://dft.ba/-8bCC Like CrashCourse on Facebook: http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter: http://www.twitter.com/TheCrashCourse References http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookexcret.html http://www.khanacademy.org/science/biology/v/the-kidney-and-nephron Campbell Biology, 9th ed. Table of Contents 1) Homeostasis & Osmoregulation 00:00 2) Urea & Uric Acid 01:30 3) Kidneys 02:49 4) Nephron 03:40 5) Glomerulus 4:15 6) Bowman's Capsule 04:25 7) Proximal Convoluted Tubule 04:49 8) Biolography 06:16 9) Loop of Henle 07:36 10) Distal Convoluted Tubule 09:23 11) Collecting Ducts 09:57 12) Ureters, Bladder & Urethra 10:45 crashcourse, crash course, biology, science, human, anatomy, physiology, homeostasis, organ, urine, urinary, kidney, ureter, bladder, urethra, osmoregulation, balance, metabolism, ammonia, urea, uric acid, toxicity, blood, nephron, renal artery, glomerulus, bowman's capsule, filtrate, loop of henle, renal cortex, renal medulla, freidrich henle, diuretic, anti-diuretic hormone, kangaroo rat, beaver, pee, osmosis Support CrashCourse on Subbable: http://subbable.com/crashcourse
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Mongols Shirts and Crash Course Posters! http://store.dftba.com/collections/crashcourse In which John Green wraps up revolutions month with what is arguably the most revolutionary of modern revolutions, the Industrial Revolution. While very few leaders were beheaded in the course of this one, it changed the lives of more people more dramatically than any of the political revolutions we've discussed. So, why did the Industrial Revolution happen around 1750 in the United Kingdom? Coal. Easily accessible coal, it turns out. All this, plus you'll finally learn the difference between James Watt and Thomas Newcomen, and will never again be caught telling people that your blender has a 900 Newcomen motor. Crash Course World History is now available on DVD! http://store.dftba.com/products/crashcourse-world-history-the-complete-series-dvd-set Follow us! @thecrashcourse @realjohngreen @raoulmeyer @crashcoursestan @saysdanica @thoughtbubbler Like us! http://www.facebook.com/youtubecrashcourse Follow us again! http://thecrashcourse.tumblr.com Support Crash Course on Patreon: http://patreon.com/crashcourse
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TRANSCRIPT AND MP3: http://www.corbettreport.com/bigoil The 20th century was the century of oil. From farm to fork, factory to freeway, there is no aspect of our modern life that has not been shaped by the oil industry. But as the "post-carbon" era of the 21st century comes into view, there are those who see this as the end of the oiligarchy. They couldn't be more wrong. This is the remarkable true story of the world that Big Oil is creating, and how they plan to bring it about.
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Hank and his brother John discuss heredity via the gross example of relative ear wax moistness. Crash Course Biology is now available on DVD! http://dftba.com/product/1av/CrashCourse-Biology-The-Complete-Series-DVD-Set Like CrashCourse on Facebook! http://www.facebook.com/YouTubeCrashCourse Follow CrashCourse on Twitter! http://www.twitter.com/TheCrashCourse This video uses sounds from Freesound.org, a list of which can be found, along with the REFERENCES for this episode, in the Google document here: http://dft.ba/-2dlR tags: crashcourse, science, biology, evolution, genetics, heredity, aristotle, bloodlines, gregor mendel, mendelian genetics, mendelian trait, classical genetics, chromosome, gene, polygenic, pleiotropic, allele, ear wax gene, somatic, diploid, gametes, sperm, egg, haploid, polyploid, dominance, dominant, recessive, heterozygous, homozygous, phenotype, punnett square, reginald c. punnett, sex-linked inheritance, autosome Support CrashCourse on Subbable: http://subbable.com/crashcourse
Просмотров: 2768816 CrashCourse
Stay until the end for a hilarious sketch. Subscribe to Newsbroke for more investigative comedy! https://www.youtube.com/channel/UCnHXmyuAUm9eBR27NMDsSzQ?sub_confirmation=1 You might not know climate change is real and fossil fuels are the cause ... if your school relies on lesson plans from the oil industry. We're talking oil-backed children's books and a wannabe Bill Nye who tells kids fracking is completely harmless. That education is more important than ever now that Trump has pulled the U.S. from the Paris climate agreement. Newsbroke spin-vestigates.
Просмотров: 28326 Newsbroke
Check out our Patreon page: https://www.patreon.com/teded View full lesson: http://ed.ted.com/lessons/the-atlantic-slave-trade-what-your-textbook-never-told-you-anthony-hazard Slavery has occurred in many forms throughout the world, but the Atlantic slave trade -- which forcibly brought more than 10 million Africans to the Americas -- stands out for both its global scale and its lasting legacy. Anthony Hazard discusses the historical, economic and personal impact of this massive historical injustice. Lesson by Anthony Hazard, animation by NEIGHBOR.
Просмотров: 4235260 TED-Ed
In which John Green teaches you about the Indus Valley Civilization, one of the largest of the ancient civilizations. John teaches you the who, how, when, where and why of the Indus Valley Civilization, and dispenses advice on how to be more successful in your romantic relationships. Additional Resources: Empires of the Indus - https://goo.gl/NoYqkY Indus Valley on Wikipedia - https://goo.gl/9a8JUK Lots of Indus Valley Civ. photos - https://goo.gl/lo9ehY Crash Course World History is now available on DVD! http://store.dftba.com/products/crashcourse-world-history-the-complete-series-dvd-set Follow us! @thecrashcourse @realjohngreen @raoulmeyer @crashcoursestan @saysdanica @thoughtbubbler Like us! http://www.facebook.com/youtubecrashcourse Follow us again! http://thecrashcourse.tumblr.com Support CrashCourse on Patreon: https://www.patreon.com/crashcourse
Просмотров: 5282495 CrashCourse
A 3-minute highlight of the Space for Kids DVD. Available at space and science Centers nation-wide and from finleyholiday.com. Never before has space exploration been this much fun and this much value! This amazing DVD contains three hours of video in a fun interactive format that kids of all ages will enjoy. Explore and learn about nearly everything imaginable on space in the last 50 years. Planets, Deep Space, Manned Space Missions, UFOs, Space Shuttle over 60 subjects. Kids and the whole family can explore interactive menus one subject-at-a-time and at their own pace. DM-301
Просмотров: 138849 finleyholiday
Nuremberg 7.4/10 · IMDb Justice Robert H. Jackson leads Allied prosecutors in trying 21 Germans for Nazi war crimes after World War II. Executive producers: Alec Baldwin, Gerald W. Abrams, More Awards: Primetime Emmy Award for Outstanding Supporting Actor in a Limited Series or a Movie, More Nominations: Primetime Emmy Award for Outstanding Limited Series
Просмотров: 2132006 Jason Salazar
A group of japanese citizens what are some the different ways people work to help others? There many examples how demonstrate active citizenship at levels 22 jun 2016 because this citizen non binary, it's crucial have a conversation privileges receives, and those is common thread that connects all americans. Citizenship dictionary definition. Good citizenship comes in cite this source. Actions that can be taken what are some examples of good citizenship? Define citizenship at dictionary definition use in a sentence citizen 10 ways to citizens msexamples people with multiple. Citizenship dictionary definition 10 ways in which you can show citizenship. An example of a citizen is person born in the united states. Volunteer to be active in your communityfollow rules and laws we want expand this list further include examples of citizenship other choose between or give up any the citizenships at some point future, a good citizen is one who engages poltical process whether local, state, federal level. Yourdictionary here's a list of 10 things you can do right now to be better citizen. Serving in the armed forces is a show of citizenship. What does it mean to be a good citizen? . Jun 2010 participating on a jury is another example. She was a united states citizen but lived most of her life abroad. Modern examples include some arab countries which rarely grant citizenship to non muslims, e. Googleusercontent search. Sthe students are learning the value of good examples citizen in a sentence. Joining a local club or organization also displays citizenship an example of good is when person finds wallet full money and returns the rather than keeping. An example of citizenship is someone being born in the united states and having access to all same freedoms rights as those already living us sentences with word citizenshipas dictator divided some territory volaterrae among his veterans definition a citizen person place or naturalized resident. Citizenship citizenship is the status of a person recognized under custom or law as being legal some states allow dual and do not require naturalized citizens to formally renounce any other. If you have a these are some ways to show good citizenship this material is from the facilitator's guide for video 'citizenship' in dvd series give examples of things you've done that. Actions that can be taken enotes 10 ways which you show citizenship 175523 url? Q webcache. Gthe definition of citizenship is the status being a citizen, along with rights, duties and privileges citizen. Examples from the web for citizenshipin particular, it applies to immigrants who lost their u. She applied for polish citizenship. Citizenship patriotism lesson plan the six pillars of character. Citizenship defined yourdictionary 10 ways in which you can show citizenship. Obeying the law is a show if citizenship. S10 examples of citizen engagement. What are some examples of good and bad citizenship? Quoradefinition citizenship by merriam websterdefi
Просмотров: 16 Tip Tip 2
2nd of 3 in the BBC Botany A Blooming History series.
Просмотров: 53054 Brian Eubanks
Paul Andersen takes you on a tour of the cell. He starts by explaining the difference between prokaryotic and eukaryotic cells. He also explains why cells are small but not infinitely small. He also explains how the organelles work together in a similar fashion. Do you speak another language? Help me translate my videos: http://www.bozemanscience.com/translations/ Intro Music Atribution Title: I4dsong_loop_main.wav Artist: CosmicD Link to sound: http://www.freesound.org/people/CosmicD/sounds/72556/ Creative Commons Atribution License
Просмотров: 2416555 Bozeman Science
Google Tech Talk December 13, 2012 (more info below) Presented by Geir Engdahl. ABSTRACT There's a ton of under-utilized stuff collecting dust in closets and garages around the world. How can we make it searchable, accessible and useful? Xoogler and CEO of SkyLib Geir Engdahl will tell the story of what motivated him to found SkyLib and how he's using Google technologies such as App Engine, Android and Maps to "index" the world's stuff. The talk outlines the "big picture" around today's resource usage, and suggests how resources can be utilized more effectively. It also dives into the details of using Google's technologies "from the outside". Geir has a master's degree in applied math, and has worked three years for Google Canada on the Conversion Optimizer product, which he received an OC Award for. In his spare time, he organizes the Norwegian Informatics Olympiad and is the leader of the local Green Party chapter. His ambition is to work for a smarter, greener future.
Просмотров: 5489 GoogleTechTalks
This HD dramatic video choreographed to powerful music introduces the viewer/student to the wonder and miracle of cells. It is designed as a motivational "trailer" to be shown by Biology, Biochemistry and Life Science teachers in middle and high school and college as a visual "Introduction" to this amazing microscopic world. Music is "Fire and Ice" by Groove Addicts. Please rate this video and feel free to comment. If you like it, please help me spread the word by posting links on your media websites. The more students who can enjoy these dramatic videos, the better! To view all of my videos in Biology, Earth Science, and Astronomy, subscribe to my channel at: http://www.youtube.com/user/sfgregs?feature=mhum. I will be releasing new videos periodically. I wish to thank all the quality video and music producers whose postings enabled me to assemble this video for educational use. To best enjoy this video, turn up your speakers. The music is very powerful and dramatic! I can customize this video to add your name or school name at the end credits, for a very modest fee. If interested, email me at "firstname.lastname@example.org" Until recently, you were able to download my videos for free from my other video storage site (vimeo.com). Recently, however, they began charging a significant membership fee to enable that feature, so I regret that downloading from there is no longer available. However, you can search for and obtain free download addons for your browser that will allow you to download my videos from either YouTube or Vimeo.
Просмотров: 1510678 Frank Gregorio
According to biblical prophecy, there are a series of wars and destructions that will occur in nations during the end times immediately preceding the seven year time period of judgment called the "Tribulation" period. These wars are found in Psalm 83 and will precede and set up a larger scale war known as the "Gog/Magog" war of Ezekiel 38 & 39, which will be world war 3 involving Russia and other major powers of the world leading to Armageddon. The nations of the psalm 83 wars involve Egypt, the city of Damascus in Syria and Israel to name a few. Currently, we are seeing the exact set-up in world events beginning to take place for these wars and destructions to occur, thus leading to the seven year Tribulation period of the book of Revelation. The current events taking place in the middle east serve as a sign post and a warning to the world that time is running out on the world. Gary Stearman and Bill Salus discuss in detail these prophetic events beginning to align on the world stage and the stunning implication for the fulfillment of the end time psalm 83 wars.
Просмотров: 1135 LAST DAYS: DARKNESS DESCENDING
http://christianima.com http://genesisweek.com In this episode: Neanderthals are human in every respect, a new CrEvo rant about Creationists and peer review, and the advances of technology. Random References: Neandertal Admixture in Eurasia Confirmed by Maximum Likelihood Analysis of Three Genomes. K. Lohse, L. A. F. Frantz. Genetics, 2014; DOI: 10.1534/genetics.114.162396 Symbolic use of marine shells and mineral pigments by Iberian Neandertals Zilhão, et. al., PNAS, 19 Jan 2010 DOI: 10.1073/pnas.0914088107 High-Tech in the Middle Palaeolithic: Neandertal-Manufactured Pitch Identified Koller, et. al., European Journal of Archaeology, Dec 2001 DOI: 10.1177/146195710100400315 The Cradle of Thought: growth, learning and play attachment in Neanderthal children. Penny Spikins, Gail Hitchens, Andy Needham and Holly Rutherford. Oxford Journal of Archaeology, 2014 DOI: 10.1111/ojoa.12030 Human 'missing link' fossils may be jumble of species Colin Barras, New Scientist, 9 April 2014 http://www.newscientist.com/article/mg22229643.200-human-missing-link-fossils-may-be-jumble-of-species.html#.U0yTlvldWSp Rejecting and resisting Nobel class discoveries: accounts by Nobel Laureates Juan Miguel Campanario, Scientometrics November 2009, Vol 81, Iss 2 3D Printing: Make anything you want, Global News https://www.youtube.com/watch?v=G0EJmBoLq-g Scientists smash barrier to growing organs from stem cells Josh Barney, Phys.org 4 Apr 2014 http://phys.org/news/2014-04-scientists-barrier-stem-cells.html DOI: 10.1007/s11192-008-2141-5 Construction of a Vertebrate Embryo from Two Opposing Morphogen Gradients Thisse, et. al., Science, 4 Apr 2014, Vol. 344 no. 6179 pp. 87-89 DOI: 10.1126/science.1248252 http://www.sciencemag.org/content/344/6179/87 http://wazooloo.com http://ianjuby.org
Просмотров: 3861 wazooloo
directed by Walter Lang with english, spanish, french, norwegian, romanian, swedish and more subtitles. The screenplay by Ethel Hill and Walter Ferris is loosely based on the novel A Little Princess by Frances Hodgson Burnett. The 1939 film was the first Shirley Temple movie to be filmed completely in Technicolor and also her last major success as a child star. Also you can watch the movie songs with original lyrics: 00:20:28 - 00:21:13 and 00:57:54 - 00:58:59 Wot Cher! Knocked 'em in the Old Kent Road aka "Knock'd 'em in the Old Kent Road", music by Charles Ingle, lyrics by Albert Chevalier, performed by Arthur Treacher and Shirley Temple twice. 01:08:11 - 01:15:08 The Fantasy, music by Samuel Pokrass, words by Walter Bullock, performed by Shirley Temple, Arthur Treacher, Mary Nash, Cesar Romero, Anita Louise, Richard Greene, and danced by Temple with unidentified ballerinas
Просмотров: 529 watchconlines
The Commerce Data Advisory Council (CDAC) will discuss environmental data, workforce capabilities to improve data operations, data protection, and other Council matters. The CDAC will meet in a plenary session on October 29-30, 2015. Learn more: http://esa.gov/content/commerce-data-advisory-council-cdac
Просмотров: 1095 U.S. Department of Commerce
EPISODE 1 Dr. Zach Bush, Vani Hari, Gunnar Lovelace TOPICS: Glyphosate impacts and effects Changes in our food supply and the consequential domino effect on our health Innovations in food supply to avoid GMOs Register to watch GMOs Revealed Aug 22 - 30. http://gmosrevealed.com Each episode is up 24 hours for you to watch FREE, starting August 22nd We will be showing 9 episodes in 9 days.
Просмотров: 300530 GMOs Revealed
Ever wonder how people mined for gold? Have no fear! You can use a pan, a large drill, and even explosives! Anthony did some digging and found out many of the methods that people get that rare substance out of the ground and into your wallet! Don't miss Discovery's epic three-night event! Klondike premieres Monday, January 20th at 9|8c on Discovery Read More: Modern Gold Mining http://money.howstuffworks.com/30924-modern-gold-mining-video.htm "With the price of gold at all time highs, a familiar fever is sweeping Alaska." Gold Price Ounce http://www.goldpriceoz.com/ "Current gold prices per ounce and gold prices history." Improvements in Stope Drilling and Blasting For Deep Gold Mines http://www.saimm.co.za/Journal/v075n06p139.pdf "The rate of face advance in the gold mines is between 3 and 10 m a month, with a median value of about 5 m a month; it follows that faces are blasted less frequently than is planned." Gold Mining - Methods http://en.wikipedia.org/wiki/Gold_mining#Methods "Placer mining is the technique by which gold has accumulated in a placer deposit is extracted." How Does Gold Mining Work? http://www.wisegeek.com/how-does-gold-mining-work.htm "Gold mining can use several different techniques, depending on the situation involved and the type of mining being done." What is the Role of Cyanide in Mining? http://www.miningfacts.org/environment/what-is-the-role-of-cyanide-in-mining/ "Cyanide is a naturally occurring chemical that is found in low concentrations throughout nature including in fruits, nuts, plants, and insects." Gold Fun Facts http://www.amnh.org/exhibitions/past-exhibitions/gold/eureka/gold-fun-facts "It has been estimated that, worldwide, the total amount of gold ever mined is 152,000 metric tons, only enough to fill 60 tractor trailers." Watch More: 5 Surprising Uses for Gold http://www.youtube.com/watch?v=MnsJEEEgbvY TestTube Wild Card http://testtube.com/dnews/dnews-437-pets-make-us-healthier?utm_campaign=DNWC&utm_medium=DNews&utm_source=YT The Truth About Diamonds http://www.youtube.com/watch?v=mjUCAMFVjaY ____________________ DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily. Watch More DNews on TestTube http://testtube.com/dnews Subscribe now! http://www.youtube.com/subscription_center?add_user=dnewschannel DNews on Twitter http://twitter.com/dnews Anthony Carboni on Twitter http://twitter.com/acarboni Laci Green on Twitter http://twitter.com/gogreen18 Trace Dominguez on Twitter http://twitter.com/trace501 DNews on Facebook http://facebook.com/dnews DNews on Google+ http://gplus.to/dnews Discovery News http://discoverynews.com
Просмотров: 256306 Seeker
Explore some examples of specialized plant and animal cells with the Amoeba Sisters! Video explains how specialized cell structure suits their function. Expand details for table of contents 👇 Video has handout: http://www.amoebasisters.com/handouts. We have another video that shows HOW cells become specialized (featuring stem cells) here: https://youtu.be/t3g26p9Mh_k Table of Contents: Specialized Cell Defined 0:26 Animal and Plant Cells have Specialized Shapes 0:36 Examples of Specialized Plant Cells (in Leaf Cross Section) 1:29 Examples of Specialized Animal Cells 5:01 -Muscle Cell Examples 6:25 Support us on Patreon! http://www.patreon.com/amoebasisters Our FREE resources: GIFs: http://www.amoebasisters.com/gifs.html Handouts: http://www.amoebasisters.com/handouts.html Comics: http://www.amoebasisters.com/parameciumparlorcomics Connect with us! Website: http://www.AmoebaSisters.com Twitter: http://www.twitter.com/AmoebaSisters Facebook: http://www.facebook.com/AmoebaSisters Tumblr: http://www.amoebasisters.tumblr.com Pinterest: http://www.pinterest.com/AmoebaSisters Instagram: https://www.instagram.com/amoebasistersofficial/ Visit our Redbubble store at http://www.amoebasisters.com/store.html The Amoeba Sisters videos demystify science with humor and relevance. The videos center on Pinky's certification and experience in teaching science at the high school level. Pinky's teacher certification is in grades 4-8 science and 8-12 composite science (encompassing biology, chemistry, and physics). Amoeba Sisters videos only cover concepts that Pinky is certified to teach, and they focus on her specialty: secondary life science. For more information about The Amoeba Sisters, visit: http://www.amoebasisters.com/about-us.html We cover the basics in biology concepts at the secondary level. If you are looking to discover more about biology and go into depth beyond these basics, our recommended reference is the FREE, peer reviewed, open source OpenStax biology textbook: https://openstax.org/details/books/biology This video mentions trichomes, but our cartoons can't match the awesomeness of real life trichomes. Would you like to see real pictures of trichomes? Check out these real life trichome images on Wikipedia here; https://en.wikipedia.org/wiki/Trichome We take pride in our AWESOME community, and we welcome feedback and discussion. However, please remember that this is an education channel. See YouTube's community guidelines https://www.youtube.com/yt/policyandsafety/communityguidelines.html and YouTube's policy center https://support.google.com/youtube/topic/2676378?hl=en&ref_topic=6151248. We also reserve the right to remove comments with vulgar language. Music in intro of this video is listed free to use/no attribution required from the YouTube audio library https://www.youtube.com/audiolibrary/music?feature=blog Since we know some of you might ask about the end music, it comes royalty-free with our Camtasia program and is called Gears of Steel.
Просмотров: 209069 Amoeba Sisters
READ MORE: http://goo.gl/PP6lCl HELP TRANSLATE SUBTITLES — http://goo.gl/6xQHDv LICENSE — Please show this film in schools and other educational settings! By watching, downloading, showing or distributing this film, you agree to the following license: http://goo.gl/s1yTUO... which basically says you are allowed to download the film and show it for educational purposes with a few exceptions. DOWNLOAD — You can downloaded the film here: http://vimeo.com/79878808 If you need a version with even higher resolution please contact email@example.com. Please notify us about your offline usage so that we can keep track of the number of users, and potentially help promote your great work! DVD — http://www.wingspanproductions.co.uk/shop.htm CREDITS — The film was produced by Wingspan Productions. http://www.wingspanproductions.co.uk/ ABOUT THE FILM — This is a free documentary for a fact-based worldview. The visualizations & stories in this film were originally developed by Gapminder. The data-sources are listed here: http://goo.gl/0WISwA It was first broadcasted on BBC on 7th of November 2013. Director & Producer; Dan Hillman, Executive Producer: Archie Baron. ©Wingspan Productions for BBC, 2013. A DVD version of this film is available to order from Wingspan Productions. Help us caption & translate this video! http://amara.org/v/FnMI/
Просмотров: 802884 Gapminder Foundation
http://www.ted.com At TEDxSydney, Rachel Botsman says we're "wired to share" -- and shows how websites like Zipcar and Swaptree are changing the rules of human behavior. TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes. Featured speakers have included Al Gore on climate change, Philippe Starck on design, Jill Bolte Taylor on observing her own stroke, Nicholas Negroponte on One Laptop per Child, Jane Goodall on chimpanzees, Bill Gates on malaria and mosquitoes, Pattie Maes on the "Sixth Sense" wearable tech, and "Lost" producer JJ Abrams on the allure of mystery. TED stands for Technology, Entertainment, Design, and TEDTalks cover these topics as well as science, business, development and the arts. Closed captions and translated subtitles in a variety of languages are now available on TED.com, at http://www.ted.com/translate. Watch a highlight reel of the Top 10 TEDTalks at http://www.ted.com/index.php/talks/top10
Просмотров: 188637 TED
How much land mass would renewables need to power a nation like the UK? An entire country's worth. In this pragmatic talk, David MacKay tours the basic mathematics that show worrying limitations on our sustainable energy options and explains why we should pursue them anyway. (Filmed at TEDxWarwick.) TEDTalks is a daily video podcast of the best talks and performances from the TED Conference, where the world's leading thinkers and doers give the talk of their lives in 18 minutes (or less). Look for talks on Technology, Entertainment and Design -- plus science, business, global issues, the arts and much more. Find closed captions and translated subtitles in many languages at http://www.ted.com/translate Follow TED news on Twitter: http://www.twitter.com/tednews Like TED on Facebook: https://www.facebook.com/TED Subscribe to our channel: http://www.youtube.com/user/TEDtalksDirector
Просмотров: 8635 TED
The great astronomer Carl Sagan envisaged Earth as a lonely life-raft in the cosmic ocean: a 'Pale Blue Dot' carrying all of humanity. However this state leaves us tied to the fate of our planet. To ensure our survival as a species, many advocate becoming interplanetary, colonising and perhaps terraforming other worlds. Join us to debate the feasibility of such an endeavour, to answer the ultimate question: can we — and should we — colonise Mars? Oxford Martin School, University of Oxford www.oxfordmartin.ox.ac.uk
Просмотров: 717 Oxford Martin School
New David Attenborough series Dynasties coming soon! Watch the first trailer here: https://www.youtube.com/watch?v=JWI1eCbksdE --~-- Check out BBC Earth on BBC online - http://www.bbc.com/earth/world John Hurts tells the stories of the biggest, deadliest and weirdest Dinosaurs ever to walk the Earth. Massive carnivorous hunter Spinosaurus hunts the giant fresh water fish Onchopristis. Planet Dinosaur tells the stories of the biggest, deadliest and weirdest creatures ever to walk the Earth, using the latest fossil evidence and immersive computer graphics. Narrated by John Hurt. Visit http://www.bbcearth.com for all the latest animal news and wildlife videos BBC Earth Facebook http://www.facebook.com/bbcearth (ex-UK only) BBC Earth Twitter http://www.twitter.com/bbcearth Subscribe to BBC Earth: http://bit.ly/ydxvrP BBC Earth Channel: http://www.youtube.com/BBCEarth Latest BBC Earth videos: http://bit.ly/y1wtbi
Просмотров: 14176433 BBC Earth