TED-Ed
TED-Ed: Why do we feel nostalgia? - Clay Routledge
Nostalgia was once considered an illness confined to specific groups of people. Today, people all over the world report experiencing and enjoying nostalgia. But how does nostalgia work? And is it healthy? Clay Routledge details the way...
PBS
Do Knock-Offs Prove the Value of a Brand?
We're willing to pay hundreds or thousands more for a specific brand name item, but sometimes it can be tempting to go the way of the knock-off for a fraction of the price. The counterfeit industry is huge and isn't going anywhere, and...
SciShow
3 Ridiculously Extreme Black Holes
Black holes are some of the most extreme astronomical objects out there, but there are some that really standout. Let's look at black holes that grow larger, consume more, and spin faster than the rest.
3Blue1Brown
Inverse matrices, column space and null space | Essence of linear algebra, chapter 6
How do you think about the column space and null space of a matrix visually? How do you think about the inverse of a matrix?
SciShow
Why Can't My Cat Roar?
Only four species in the cat family can roar: lions, tigers, leopards, and jaguars. And zoologists are pretty sure those four species can't purr. But why?
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...
SciShow
Why We Want to Find Plate Tectonics in Space
It’s not easy to find active plate tectonics on other worlds, but doing so may bring us one step closer to finding a planet that can support life.
SciShow
Why Do We Have Baby Teeth?
What's up with baby teeth? Do other animals have them, and what are they good for -- other than squeezing money out of the tooth fairy? We have the answers!
Crash Course Kids
Big Changes in the Big Forest
What do beavers, termites, and prairie dogs have in common? They all change their environments! Last time we talked about how humans change their environments, but humans are animals and all animals change their environments just by...
Be Smart
Does My Dog Know What I'm Thinking?
Do you ever talk to your dog? Do they ever talk back? Humans and dogs have a truly amazing relationship, developed along an evolutionary journey that goes back nearly 10,000 years. Do they really understand what we say, think, and feel?...
SciShow
Does Your Cockatiel Have an Accent?
Dialects are a part of how we communicate, but it also turns out that many animals have dialects depending on what part of the world they live in.
TED Talks
TED: The reporting system that sexual assault survivors want | Jessica Ladd
We don't have to live in a world where 99 percent of rapists get away with it, says TED Fellow Jessica Ladd. With Callisto, a new platform for college students to confidentially report sexual assault, Ladd is helping survivors get the...
SciShow
Can This AI Hear Alzheimer’s on the Phone?
It can be tough to diagnose Alzheimer's disease, but a team of researchers believes that artificial intelligence might be able to do it just by listening.
Crash Course
What is space and how do we study it Crash Course Geography
Today we're going to talk about SPAAAAAACE, but not like stars and satellites and stuff. Instead, we're going to talk about geographic space. In geography, we can look at the world and the places and spaces we inhabit with four distinct...
TED Talks
Beau Lotto and Cirque du Soleil: How we experience awe -- and why it matters
Neuroscientist Beau Lotto conducted an ambitious study with Cirque du Soleil on the emotion of awe and its psychological and behavioral benefits. In this talk and live performance, he shares some of their findings -- and stands back as...
SciShow
New Earth-Size Planet and a Solar Eclipse
Caitlin Hofmeister gives you the latest news from around the universe, including Kepler's latest exoplanet discovery, an upcoming solar eclipse, and a breathtaking image from Hubble.
TED-Ed
TED-Ed: How computers translate human language - Ioannis Papachimonas
Is a universal translator possible in real life? We already have many programs that claim to be able to take a word, sentence, or entire book in one language and translate it into almost any other. The reality, however, is a bit more...
TED-Ed
TED-ED: Mysteries of vernacular: Window - Jessica Oreck and Rachael Teel
Metaphoric compounds, like the combination of the words wind and eye to represent a window, populated Norse and Old English. Jessica Oreck and Rachael Teel describe how this love of metaphor created the word window.
SciShow
How Words Get Stuck on the Tip of Your Tongue
You know that feeling, when you know a word but it's just out of reach, stuck on the tip of your tongue? Well, why does it happen? And what can you do about it?
SciShow
Destroying Space Junk With Lasers, and Two Rare Eclipses!
This week on SciShow Space News, astronauts had to take the scenic route to the ISS because of some space debris. And this month, you might get to see two eclipses: a solar eclipse, and a rare supermoon eclipse.
Amoeba Sisters
Hardy-Weinberg Equilibrium
Explore the Hardy-Weinberg Equilibrium equations with The Amoeba Sisters! Learn why this equation can be useful, its five assumptions, and how to calculate genotype and allele frequencies with p and q values! This video does assume the...