Top climate scientist James Hansen tells the story of his involvement in the science of and debate over global climate change. In doing so he outlines the overwhelming evidence that change is happening and why that makes him deeply...

Art history is far from set in stone. Engineer Maurizio Seracini spent 30 years searching for Leonardo da Vinci's lost fresco "The Battle of Anghiari," and in the process discovered that many paintings have layers of history hidden...

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...

In this week's SciShow News, we discuss two new types of sensors being developed. One tracks the content of certain molecules in your sweat while you exercise and the other is a brain implant that can be resorbed once it has finished its...

Until roughly 1100, there were relatively few places of knowledge-making. Monasteries and abbeys had special rooms called scriptoria where monks copied manuscripts by hand. But the biggest places where knowledge was made were the Gothic...

Simpson's Paradox Part 2.



This video is about how to tell whether or not university admissions are biased using statistics: aka, it's about Simpson's Para

dox again!<

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REFERENCES:

Original...

35,000 walruses all hanging out at the same beach in Alaska? Why? Does global warming have anything to do with it? And what have we learned after 20 years of studying the effects of marijuana? SciShow News explains.

Ink that conducts electricity; a window that turns from clear to opaque at the flip of a switch; a jelly that makes music. All this stuff exists, and Catarina Mota says: It's time to play with it. Mota leads us on a tour of surprising...

Months after he was born, in 1948, Ron McCallum became blind. In this charming, moving talk, he shows how he reads -- and celebrates the progression of clever tools and adaptive computer technologies that make it possible. With their...

Teachers emotionally support our kids -- but who's supporting our teachers? In this eye-opening talk, educator Sydney Jensen explores how teachers are at risk of "secondary trauma" -- the idea that they absorb the emotional weight of...

Hank counts down some of the science superlatives from 2013: the first, biggest, strongest and longest things that were discovered, built or otherwise described. Find out his year's superlatives. They're the best!

SciShow News shares the latest science headlines, including a newly-found butterfly that’s half male and half female, and new insights into the association between cancer and … breathing.

Hank talks with University of Montana Professor Rick Hughes about innovating technology and training the SciShow staff. Special guest appearance with Jessi and Veiled Chameleon 'Twirly'.

How can Africans find solutions to Africa's problems? Conservation biologist Kevin Njabo tells his personal story of how he nearly became part of the group of African scientists who seek an education abroad and never return -- and why...

To all appearances, Eleanor Longden was just like every other student, heading to college full of promise and without a care in the world. That was until the voices in her head started talking. Initially innocuous, these internal...

Good design looks great, yes -- but why shouldn't it also feel great, smell great and sound great? Designer Jinsop Lee (a TED Talent Search winner) shares his theory of 5-sense design, with a handy graph and a few examples. His hope: to...

Astronauts Scott Kelly and Mikhail Kornienko will soon undertake a historic, record-breaking mission: to live in space for an entire year. And scientists will have some extra help studying the effects of this extended stay on the...

A cure for leprosy eluded humans for thousands of years, until the pioneering chemistry work of Alice Ball. With her treatment, patients recovered enough to be discharged from the hospital by the hundreds.

Jen Fowler of the Montana Space Grant Consortium joins us this week to talk about her work with weather balloons and the upcoming solar eclipse, and Jessi from Animal Wonders brings along Gaia the Southern Three-Banded Armadillo!

We often find ourselves stuck in narrow social circles with similar people. What habits confine us, and how can we break them? Organizational psychologist Tanya Menon considers how we can be more intentional about expanding our social...

What could you do with the world's smallest 3D printer? Klaus Stadlmann demos his tiny, affordable printer that could someday make customized hearing aids -- or sculptures smaller than a human hair.

In this eye-opening talk about the impact of race and neighborhood on foster-care decisions, social worker Jessica Pryce shares a promising solution to help child welfare agencies make bias-free assessments about when to remove children...

You might think weather on earth is pretty crazy, but at least we don't have an apocalyptic shockwave to worry about every 111 days.

Meet Todai Robot, an AI project that performed in the top 20 percent of students on the entrance exam for the university of Tokyo -- without actually understanding a thing. While it's not matriculating anytime soon, Todai Robot's success...