Mega-scientist Stephen Hawking threw his colleagues for a loop recently, when they thought he wrote in a paper that black holes do not exist. Hank Green, of SciShow, says those who read the paper apparently took the TLTR (or too long to read) route, instead assuming there was some major breakthrough or breakdown in astrophysics. Green takes the time to put Hawking’s thoughts into context.
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With the constant debate over which sources of energy our country should harness, Hank Green, of SciShow, has a valid suggestion: Why not volcanic power? “One of the most massively powerful forces we have here on Earth, a store of energy so gigantic that it liquifies trillions upon trillions of tons of rock, and is independent from the sun’s energy output. It’s the pressure of the Earth pushing down on itself, heating its interior to such dramatic temperatures that every once in a while a pimple (volcano) will erupt on its surface, spewing rock kilometers into the air. If only we could capture that energy.”
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Many of us crave it. Some of us just can’t do without. It’s safe to say that chocolate has captured our taste buds and imaginations. But what is it about this irresistible confection that drives us to the point of addiction? Hank Green explains in this edition of SciShow.
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2013 was the year of three incredible discoveries in the fields of physics, space science and anthropology. Hank Green lays out the details in this edition of SciShow.
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Curiosity, the nuclear-powered rover on the surface of Mars, has uncovered evidence in the giant Gale Crater of ancient life on the Red Planet. SciShow’s Hank Green discusses the mounting evidence that ancient Mars was habitable over larger areas and longer periods of time than we ever thought.
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The most lethal toxin known to man is produced by the tiny bacterium clostridium botulinum, more commonly known by the disease it causes–botulism. The toxin is so potent that it would only take a crystal of botulinum the size of a grain of sand to kill 9,600 people. Join Hank Green in this edition of SciShow, as he discusses how botulinum and four other deadly poisons attack the human body.
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Scientists recently released a list of the most biologically important locations on the planet, surprisingly coming up with 137 of them. In this edition of “SciShow,” Hank Green takes you on a tour of four of these gems, elaborating on why they are simply irreplaceable.
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Many inventions we use today were once only products of science fiction imagining a fantastical future. In this edition of “SciShow,” Hank Green takes a look at four of these inventions: the cell phone, robot arm, submarine and taser.
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NASA is embarking on a bold, new program to peer deeper into space, using a technique called gravitational lensing. Astronauts have already put the tool to work to detect the most distant galaxy ever, and hope to continue exploration. Join Hank Green for details on the program and for his review of the movie Gravity in this edition of “SciShow.”
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