SciShow
We Were Super Wrong About Mental Illness The DSM’s Origin Story
We reference the DSM pretty frequently on SciShow Psych, and for good reason: it’s considered the gold standard for professional mental health diagnosis in the United States, but it was an interesting journey to get there.
Bozeman Science
Why Are Cells Small?
The lower half of Mr. Andersen's head explains why cells are small. This video begins with a simple geometry problem and ends with a discussion of Allen's Rule and reasoning for the microscopic nature of cells.
3Blue1Brown
What does area have to do with slope? | Essence of calculus, chapter 9
Derivatives are about slope, and integration is about area. These ideas seem completely different, so why are they inverses?
MinutePhysics
How to Tell Matter From Antimatter | CP Violation & The Ozma Problem
This video was made with the support of the Heising Simons Foundation. This video is about the Ozma problem of distinguishing the chirality (ie left-handedness or right-handedness) of matter using weak interaction processes like beta...
SciShow
The Science of Anti-Vaccination
Fewer children in the United States are getting vaccinated. That's bad news for those kids, and also for public health in general. Often, the response is to argue and debate and get angry at people who are we see as making terrible,...
3Blue1Brown
The Brachistochrone, with Steven Strogatz: Brachistochrone - Part 1 of 2
A classic problem that Johann Bernoulli posed to famous mathematicians of his time, such as Newton, and how Bernoulli found an incredibly clever solution using properties of light.
SciShow
How Engineers Move Medicine Around the World
Modern medicine has made great strides when it comes to treating and preventing some of the worst diseases in history. But getting that medicine from labs to remote regions presents some interesting engineering challenges.
SciShow
The Problem with Bee Venom Therapy
Does bee venom therapy work? Stings cause pain, itching, or even death in some people, so how might potential benefits outweigh the risks?
Bozeman Science
The New AP Biology Exam - A User's Guide
In this video Paul Andersen describes the new AP Biology Exam. This exam will be given for the first time in May of 2013 and will be different from all previous exams. In this video Paul Andersen describes the scoring and the two parts...
3Blue1Brown
The Brachistochrone, with Steven Strogatz
A classic problem that Johann Bernoulli posed to famous mathematicians of his time, such as Newton, and how Bernoulli found an incredibly clever solution using properties of light.
TED Talks
TED: A bold plan to protect 30 percent of the Earth's surface and ocean floor | Enric Sala
As a diver in the 1970s, marine ecologist Enric Sala saw once-lush oceanscapes reduced to underwater deserts -- but later, in marine preserves across the globe, he also witnessed the ocean's power to rejuvenate itself when left to its...
TED Talks
Dan Meyer: Math class needs a makeover
Today's math curriculum is teaching students to expect -- and excel at -- paint-by-numbers classwork, robbing kids of a skill more important than solving problems: formulating them. Dan Meyer shows classroom-tested math exercises that...
3Blue1Brown
The Essence of Calculus - Part 1 of 11
An overview of what calculus is all about, with an emphasis on making it seem like something students could discover for themselves. The central example is that of rediscovering the formula for a circle's area, and how this is an...
SciShow
Scientists Just Figured Out How Washing Machines Work?!
According to the math, washing machines should take several hours to get your clothes clean, but in reality it only takes a single hour or less. Now, scientists have finally figured out how they truly work.
SciShow
Xenotransplantation: When People Get Animal Parts
How can we transplant animal tissue into humans? And will we ever be able to grow customized organs? SciShow explains!
TED Talks
Jeanne Pinder: What if all US health care costs were transparent?
In the US, the very same blood test can cost $19 at one clinic and $522 at another clinic just blocks away -- and nobody knows the difference until they get a bill weeks later. Journalist Jeanne Pinder says it doesn't have to be this...
TED Talks
TED: How the blockchain is changing money and business | Don Tapscott
What is the blockchain? If you don't know, you should; if you do, chances are you still need some clarification on how it actually works. Don Tapscott is here to help, demystifying this world-changing, trust-building technology which, he...
TED Talks
TED: How the US fails working parents -- and what they need to thrive | Reshma Saujani
The pandemic brought into sharp focus the crisis in caregiving in the United States, which woefully under provides support for parents. Activist and Girls Who Code founder Reshma Saujani has a proposal to address that -- something she...
SciShow
The Universe As We Know It Shouldn't Exist | The Matter-Antimatter Problem
The universe is a pretty grand place to live, but scientists have one issue with it, it's an anomaly that should be scientifically impossible.
Crash Course Kids
Bowled Over
So, variables. There are lots of them when trying to test an idea. The trick is to isolate one variable at a time to get reliable results every time. But, how do we do that? In this episode of Crash Course Kids, Sabrina shows us how to...
Bozeman Science
Objects
In this video Paul Andersen explains how a system can be viewed as an object and an object can be viewed as a system.
SciShow
How Movies and TV Get Radiation Sickness Wrong
Radiation sickness been portrayed in movies and television for more than 50 years. And those portrayals vary a lot. But if there’s one thing pretty much all these portrayals have in common, it’s that they get radiation sickness wrong—at...
SciShow
Spacecraft Need New Heat Shields. Cue the Cuttlefish?
Scientists are always searching for new materials that maximize strength and thermal protection while also minimizing mass for space flight. So, when developing new heat shields, why are they looking to cuttlefish for inspiration?
TED Talks
Leon Marchal: The urgent case for antibiotic-free animals
The UN predicts that antimicrobial resistance will be our biggest killer by 2050. "That should really scare the hell out of all of us," says bioprocess engineer Leon Marchal. He's working on an urgently needed solution: transforming the...