In the first recorded blood transfusion in 1667, a French boy received the blood from a sheep — and somehow, miraculously, the boy survived. In this episode of the SciShow, Hank Green tells you the strange story of how blood transfusions got their start in medicine.
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Hank Green unveils his new Talk Show on the SciShow Channel. In the first episode, he chats with Emily Graslie of The Brain Scoop about rhinoceros conservation programs. To stop poachers, rhino horns are now being tagged with GPS devices and injected with a pink dye that can be detected at airport checkpoints. Also in this episode, Jessi from Animal Wonders introduces Cas the Arctic Fox — the cutest animal ever to pee on Hank’s desk.
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Chinese alchemists searching for the elixir of eternal life instead discovered gunfire, creating the world’s first chemical explosion. It took generations for the Chinese to perfect the mixture, which remained a closely guarded state secret for another 400 years. Hank Green presents the full story on gunpowder in this SciShow.
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Hank Green from the SciShow explains how fracking is done. The process has greatly expanded our domestic pool of oil and natural gas. At the same time, Green says, it carries certain environmental risks, so must be done carefully to avoid contaminating water supplies or increasing the probability of earthquakes.
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How many stars are there in the universe? This question leads Hank Green to a couple other questions. How many stars can we see from Earth? How many stars are there in our galaxy? He addresses these questions in SciShow, but the answer to the original question proves elusive.
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Today Hank Green uses his patented prognosticating abilities to tell you about some space news events to watch out for in 2013. What is the Curiosity rover going to spend most of the year doing? Why are we going back to the moon? And what two awesome things are projected to occur around Thanksgiving Day? Find out in this edition of SciShow News.
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What would happen if you were cast adrift in the vacuum of space? Would your head explode? Would you freeze to death? Or quickly reach a boiling point? Hank Green as explors all of the most pressing alternatives he answers a SciShow viewer’s question about what happens if the human body gets exposed to space.
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In this week’s SciShow news, Hank Green explains how earthworms are doing nanotechnology for us, Americans will soon be eating genetically modified salmon and the Russians are going back to space.
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Physicists estimate that dark matter accounts for about 23 percent of the known universe. The only problem is that no one really knows what it is. Hank Green delves into the mysterious, unquantifiable substance in this SciShow.
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This year’s end News episode of the SciShow wraps up with nothing but superlatives: Hank Green shares the biggest, oldest, first, last, smallest and hottest developments in science from 2012. He squeezes full coverage of all 10 “superlatives” into six minutes so, yes, he does talk fast.
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