Space Trash
Earth’s orbit has a bit of a litter problem. Hank Green outlines a few proposals scientists have floated to help clean things up.
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Earth’s orbit has a bit of a litter problem. Hank Green outlines a few proposals scientists have floated to help clean things up.
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There are natural poisons that lurk in bacteria, plants, and fungi pretty much everywhere, and they’re there for good reasons – but what is it about their chemical makeup that makes them so poisonous? How do their toxins attack the human body with such deadly efficiency? Discover the answers to these and other questions as Hank Green talks about some of the most deadly natural substances in the world.
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Viruses are among humanity’s greatest threats and it seems like they’re always one step ahead of us. But this week, biologists say that they’ve discovered a new weapon we can use against some of our most nefarious virus enemies — including Ebola and Rabies — and it comes from our friends the plants. Hank Green shares the encouraging news.
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Today on SciShow news, dead person wisdom is helping enrich our understanding of the natural world. How did Vikings manage to be such awesome navigators? And is heart disease inherent in human beings? Scientists think mummies may have the answer.
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Mission specialists with NASA’s Mars Science Laboratory announced that they have found, for the first time, evidence of an ancient environment on Mars that could have sustained life. Hank Green tells us the specifics in this special, super-exciting episode of SciShow News.
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World War II’s Manhattan Project ushered in the Atomic Age. On the one hand, the project led to the development of the first nuclear bombs, but it also produced a wealth of new scientific knowledge from which mankind is still reaping the rewards today. Hank Green looks back at that massive project and its enormous consequences in this edition of the SciShow.
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In a word, “yes.” Space is packed with gravity. Hank Green explains how gravity works, first described by Isaac Newton, and why even though it seems that things are floating in space, they’re still affected by gravity. Every object in the universe is constantly attracting every other object in the universe.
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In this edition of the SciShow’s Great Minds series, Hank Green salutes Richard Feynman, the eccentric American physicist who could work out the most complex of scientific problems while playing bongo drums at a strip club.
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As spring approaches, we anticipate the fluttering butterflies and the capering baby lambs, but we can also expect to see some birds hammered out of their minds in the trees, and perhaps rolling on the ground. In most cases, says Hank Green, these birds have overindulged in the fermented berries and other fruits that froze during the winter and are now thawing – proving an irresistible treat for many kinds of birds. H/T The SciShow
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Hank Green is back on the SciShow after a two-week vacation to England and Ireland. He was on hand when King Richard III was uncovered from a burial site beneath a British parking lot, and also regales us with tales of his encounter with a giant squid.
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