3Blue1Brown
The determinant | Essence of linear algebra, chapter 5
The determinant has a very natural visual intuition, even though it's formula can make it seem more complicated than it really is.
TED Talks
TED: Why you should love gross science | Anna Rothschild
What can we learn from the slimy, smelly side of life? In this playful talk, science journalist Anna Rothschild shows us the hidden wisdom of "gross stuff" and explains why avoiding the creepy underbelly of nature, medicine and...
TED Talks
TED: Why you should talk to strangers | Kio Stark
When you talk to strangers, you're making beautiful interruptions into the expected narrative of your daily life -- and theirs, says Kio Stark. In this delightful talk, Stark explores the overlooked benefits of pushing past our default...
TED Talks
TED: Let's end ageism | Ashton Applewhite
It's not the passage of time that makes it so hard to get older. It's ageism, a prejudice that pits us against our future selves -- and each other. Ashton Applewhite urges us to dismantle the dread and mobilize against the last socially...
TED-Ed
TED-Ed: The case against "good" and "bad" - Marlee Neel
Don't take the easy route! Instead, use this little trick to improve your writing -- let go of the words "good" and "bad," and push yourself to illustrate, elucidate and illuminate your world with language.
Bozeman Science
Endothermic and Exothermic Reactions
In this video Paul Andersen explains how heat can be absorbed in endothermic or released in exothermic reactions. An energy diagram can be used to show energy movements in these reactions and temperature can be used to measure them...
SciShow
Why Do Some People Tolerate Spicy Food?
Some people can eat raw jalapeños like they're apples. Why do some people have a high tolerance for spicy food while others can't stand it?
TED Talks
TED: Be humble -- and other lessons from the philosophy of water | Raymond Tang
How do we find fulfillment in a world that's constantly changing? Raymond Tang struggled with this question until he came across the ancient Chinese philosophy of the Tao Te Ching. In it, he found a passage comparing goodness to water,...
SciShow
The Mayan Calendar & 2012
Hank tells us about the Mayan calendar & why December 21, 2012 will not be the end of the world.
SciShow
Why Do We Stretch in the Morning?
Humans (and our pets) frequently instinctively stretch as soon as we wake up. But why? What is happening in our bodies when we stretch and yawn to wake ourselves up?
TED Talks
Bruce Schneier: The security mirage
The feeling of security and the reality of security don't always match, says computer-security expert Bruce Schneier. In his talk, he explains why we spend billions addressing news story risks, like the "security theater" now playing at...
TED Talks
TED: The creative power of your intuition | Bozoma Saint John
Great ideas are like electricity -- they snap into sharp focus and sprint from place to place. What's the best way to capture them? Bozoma Saint John, Chief Marketing Officer at Netflix, makes a compelling case to move away from an...
TED Talks
Fabian Hemmert: The shape-shifting future of the mobile phone
In this short, amazing demo, Fabian Hemmert imagines one future of the mobile phone -- a shape-shifting and weight-shifting handset that "displays" information nonvisually. It's a delightfully intuitive way to communicate.
SciShow
Occupational Burnout: When Work Becomes Overwhelming
Even if you like your job, it’s not unusual to feel "burnout." But the idea of what that means has evolved over time.
TED Talks
TED: Global ethic vs. national interest | Gordon Brown
Can the interests of an individual nation be reconciled with humanity's greater good? Can a patriotic, nationally elected politician really give people in other countries equal consideration? Following his TEDTalk calling for a global...
TED Talks
TED: See how the rest of the world lives, organized by income | Anna Rosling Rönnlund
What does it look like when someone in Sweden brushes their teeth or when someone in Rwanda makes their bed? Anna Rosling Rönnlund wants all of us to find out, so she sent photographers to 264 homes in 50 countries (and counting!) to...
TED Talks
Michael C. Bush: This is what makes employees happy at work
There are three billion working people on this planet, and only 40 percent of them report being happy at work. Michael C. Bush shares his insights into what makes workers unhappy -- and how companies can benefit their bottom lines by...
SciShow
What Makes Something Funny?
It's said that the quickest way to kill a joke is to explain it, but scientists are still interested in finding out just what tickles our brains and makes us find something funny.
TED Talks
TED: The surprising habits of original thinkers | Adam Grant
How do creative people come up with great ideas? Organizational psychologist Adam Grant studies "originals": thinkers who dream up new ideas and take action to put them into the world. In this talk, learn three unexpected habits of...
SciShow
Do Epsom Salt Baths Do Anything?
You come home from an intense workout, muscles aching, and lower yourself into a warm epsom salt bath from some sweet relief. But are all those extra minerals really helping soothe your pain?
SciShow
Your Brain on Retail Therapy
After a bad day, you might feel like you deserve a treat and order that pair of shoes you've had your eye on. But psychologists have wondered if that impulse purchase can end up leaving you feeling more unfulfilled than happy.
Crash Course
The Economics of Happiness: Crash Course Econ
They say money can't buy happiness, but who are they? Can money buy happiness? The answer is: sort of. While money may not be able to buy true happiness, lack of money can cause very real misery. Today, we look at the economics of...
SciShow
Why Are Celebrity Crushes So Intense?
Your love for Rihanna or Tom Hardy may be unrequited, but that doesn't necessarily make it unhealthy.
TED Talks
TED: Our story of rape and reconciliation | Thordis Elva and Tom Stranger
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. In 1996, Thordis Elva shared a teenage romance with Tom Stranger, an exchange student from Australia. After a...