SciShow
Seeing Sick Birds Boosts Canaries’ Immune Responses
Unlike humans, domestic canaries don’t have the option of social distancing when one of their own is ill. But canaries may have evolved a nifty workaround for protecting their populations when disease strikes!
SciShow
Do You Need a Brain to Sleep?
You might think you need a brain to be able to sleep, but organisms with super simple neural networks can still "sleep" sort of like we do. So, if these organisms can sleep too, then what is sleep anyway?
3Blue1Brown
Backpropagation calculus | Deep learning, chapter 4
The math of backpropagation, the algorithm by which neural networks learn.
TED Talks
TED: This tennis icon paved the way for women in sports | Billie Jean King
Tennis legend Billie Jean King isn't just a pioneer of women's tennis -- she's a pioneer for women getting paid. In this freewheeling conversation, she talks about identity, the role of sports in social justice and the famous Battle of...
TED Talks
TED: Our unhealthy obsession with choice | Renata Salecl
We face an endless string of choices, which leads us to feel anxiety, guilt and pangs of inadequacy that we are perhaps making the wrong ones. But philosopher Renata Salecl asks: Could individual choices be distracting us from something...
TED Talks
Zach Kaplan + Keith Schacht: Toys and materials from the future
The Inventables guys, Zach Kaplan and Keith Schacht, demo some amazing new materials and how we might use them. Look for squishy magnets, odor-detecting ink, "dry" liquid and a very surprising 10-foot pole.
TED Talks
George Papandreou: Imagine a European democracy without borders
Greece has been the poster child for European economic crisis, but former Prime Minister George Papandreou wonders if it's just a preview of what's to come. “Our democracies," he says, "are trapped by systems that are too big to fail, or...
TED Talks
TED: How is your city tackling the climate crisis? | Marvin Rees
If we can unlock the full potential of our cities, we can minimize the price the planet pays for hosting us in our growing numbers, says Marvin Rees, the Mayor of Bristol, UK, who understands deeply how cities can help (or hurt) the...
SciShow
Can You Become a Morning Person?
If you know someone who can’t start their morning without 3 cups of coffee, don’t assume they frequently stay out late partying—it’s probably genetics.
TED Talks
Parag Khanna: Mapping the future of countries
Many people think the lines on the map no longer matter, but Parag Khanna says they do. Using maps of the past and present, he explains the root causes of border conflicts worldwide and proposes simple yet cunning solutions for each.
TED Talks
Anne Curzan: What makes a word "real"?
One could argue that slang words like ‘hangry,’ ‘defriend’ and ‘adorkable’ fill crucial meaning gaps in the English language, even if they don't appear in the dictionary. After all, who actually decides which words make it into those...
Crash Course
Social Thinking: Crash Course Psychology
Why do people do bad things? Is it because of the situation or who they are at their core? In this week's episode of Crash Course Psychology, Hank works to shed a little light on the ideas of Situation vs. Personality. Oh, and we'll have...
TED Talks
TED: There's more to life than being happy | Emily Esfahani Smith
Our culture is obsessed with happiness, but what if there's a more fulfilling path? Happiness comes and goes, says writer Emily Esfahani Smith, but having meaning in life -- serving something beyond yourself and developing the best...
TED-Ed
TED-Ed: What causes yeast infections, and how do you get rid of them? | Liesbeth Demuyser
The vagina harbors hundreds of different kinds of microorganisms. Candida yeasts are usually present in small quantities and most of the time, these fungi are harmless. But, under certain conditions, Candida yeasts can cause infections....
TED Talks
Claire Wardle: How you can help transform the internet into a place of trust
How can we stop the spread of misleading, sometimes dangerous content while maintaining an internet with freedom of expression at its core? Misinformation expert Claire Wardle explores the new challenges of our polluted online...
TED Talks
Ian Goldin: Navigating our global future
As globalization and technological advances bring us hurtling towards a new integrated future, Ian Goldin warns that not all people may benefit equally. But, he says, if we can recognize this danger, we might yet realize the possibility...
TED Talks
Seth Berkley: HIV and flu -- the vaccine strategy
Seth Berkley explains how smart advances in vaccine design, production and distribution are bringing us closer than ever to eliminating a host of global threats -- from AIDS to malaria to flu pandemics.
TED Talks
Maryn McKenna: What do we do when antibiotics don't work any more?
Penicillin changed everything. Infections that had previously killed were suddenly quickly curable. Yet as Maryn McKenna shares in this sobering talk, we've squandered the advantages afforded us by that and later antibiotics....
SciShow
Ultra High-Tech Ways Scientists Might Defeat COVID-19
Scientists are trying a little bit of everything to fight the virus that causes COVID-19, but some researchers are harnessing more than just the usual virus-fighting repertoire, from tiny sponges to viral RNA-destroying bubbles.
Bozeman Science
Chemical and Physical Processes
In this video Paul Andersen explains the difference between chemical and physical processes. Chemical processes occur when bonds are broken and reformed. Physical processes occur when intermolecular forces are broken and reformed. A gray...
PBS
That Time Oxygen Almost Killed Everything
What if we told you that there was a time when oxygen almost wiped out all life on Earth? 3 billion years ago, when the world was a place you'd never recognize, too much of a good thing almost ruined everything for everybody.
SciShow
How Much Does the Sun Affect Earth’s Climate?
The sun is obviously a big factor in the earth's weather, but changes in the solar cycle don't always affect our climate in straightforward ways.
TED Talks
TED: How teachers can help kids find their political voices | Sydney Chaffee
Social justice belongs in our schools, says educator Sydney Chaffee. In a bold talk, she shows how teaching students to engage in activism helps them build important academic and life skills -- and asks us to rethink how we can use...
TED Talks
Peter Reinhart: The art and craft of bread
Batch to batch, crust to crust ... In tribute to the beloved staple food, baking master Peter Reinhart reflects on the cordial couplings (wheat and yeast, starch and heat) that give us our daily bread. Try not to eat a slice.