MinutePhysics
Length Contraction and Time Dilation | Special Relativity Ch. 5
This video is chapter 5 in my series on special relativity, and it covers how things that are moving (that is, moving relative to an inertial reference frame) at different speeds appear to be shorter in length... and longer in length....
TED Talks
TED: The unexpected benefit of celebrating failure | Astro Teller
Great dreams aren't just visions, says Astro Teller, "They're visions coupled to strategies for making them real." The head of X (formerly Google X), Teller takes us inside the "moonshot factory," as it's called, where his team seeks to...
TED Talks
TED: Why design should include everyone | Sinead Burke
Sinead Burke is acutely aware of details that are practically invisible to many of us. At 105 centimeters (or 3' 5") tall, the designed world -- from the height of a lock to the range of available shoe sizes -- often inhibits her ability...
SciShow
Cruithne, the Asteroid With a Horseshoe Orbit
There’s a small asteroid that appears to orbit Earth in a horseshoe shape. Sometimes referred to as Earth’s second moon, but it's orbit is much weirder than that.
TED Talks
Herman Narula: The transformative power of video games
A full third of the world's population -- 2.6 billion people -- play video games, plugging into massive networks of interaction that have opened up opportunities well beyond entertainment. In a talk about the future of the medium,...
TED Talks
Candy Chang: Before I die I want to ...
In her New Orleans neighborhood, artist and TED Fellow Candy Chang turned an abandoned house into a giant chalkboard asking a fill-in-the-blank question: "Before I die I want to ___." Her neighbors' answers -- surprising, poignant, funny...
TED Talks
Leland Melvin: An astronaut's story of curiosity, perspective and change
What job is best for a young man who's been a tennis ace, a cross-country traveler, a chemistry nerd and an NFL draftee? How about ... astronaut? Leland Melvin tells the story of the challenges he's accepted and the opportunities he's...
TED Talks
TED: Hidden miracles of the natural world | Louie Schwartzberg
We live in a world of unseeable beauty, so subtle and delicate that it is imperceptible to the human eye. To bring this invisible world to light, filmmaker Louie Schwartzberg bends the boundaries of time and space with high-speed...
SciShow
The Tiny Experiment That Transformed Physics
In 1956, a team of scientists conducted an experiment that, seemed kind of trivial, but the results would challenge one of our fundamental beliefs about the entire universe.
TED Talks
TED: In our baby's illness, a life lesson | Roberto D'Angelo + Francesca Fedeli
Roberto D'Angelo and Francesca Fedeli thought their baby boy Mario was healthy -- until at 10 days old, they discovered he'd had a perinatal stroke. With Mario unable to control the left side of his body, they grappled with tough...
SciShow
6 Animals That Thrive Upside-Down
For humans, being upside-down isn’t a comfy way to hang out for very long, but for these six animals, upside-down feels just right! Chapters THREE-TOED SLOTH 0:38 UPSIDE-DOWN JELLYFISH 2:10 NUTHATCH 3:37 RED-HEADED WOODPECKER 3:57 4:55...
MinutePhysics
How Long Is A Day On The Sun?
This video is about the definition of a day, and how it applies (or not) on the sun. Solar day, sidereal day, universal coordinated time (UTC) day, etc. Length of a day.
TED Talks
Milton Glaser: Using design to make ideas new
From the TED archives: The legendary graphic designer Milton Glaser dives deep into a new painting inspired by Piero della Francesca. From here, he muses on what makes a convincing poster, by breaking down an idea and making it new.
SciShow
Blazars Are A Thing
Hank explains how quasars and blazars are both the same thing - just oriented differently in respect to us - and how that impacts the way we perceive them and how it also effects the ways we can study them.
TED Talks
TED: How to speak up for yourself | Adam Galinsky
Speaking up is hard to do, even when you know you should. Learn how to assert yourself, navigate tricky social situations and expand your personal power with sage guidance from social psychologist Adam Galinsky.
TED Talks
Noah Wilson-Rich: Every city needs healthy honey bees
Bees have been rapidly and mysteriously disappearing from rural areas, with grave implications for agriculture. But bees seem to flourish in urban environments -- and cities need their help, too. Noah Wilson-Rich suggests that urban...
TED Talks
TED: A feminist reimagining of Kenya's public transport | Naomi Mwaura
Kenya's minibuses -- known as "matatus" -- offer a convenient, affordable and colorful way for people to get around. But they also pose safety risks and accessibility issues for many of their passengers, especially women. Bringing a...
TED Talks
Liza Donnelly: Drawing on humor for change
New Yorker cartoonist Liza Donnelly shares a portfolio of her wise and funny cartoons about modern life -- and talks about how humor can empower women to change the rules.
Crash Course
Theories of Gender: Crash Course Sociology
Why is gender even a thing? To answer that, we’re going back to our three sociological paradigms and how each school of thought approaches gender theory. We’ll look at the structural functionalist view that gender is a way of organizing...
Crash Course
The Handmaid's Tale, Part 2: Crash Course Literature 404
This week, John Green continues to teach you about Margaret Atwood's speculative fiction, The Handmaid's Tale. In this installment, we're looking at Atwood's desire to tell a story from a female point of view, and what exactly it means...
SciShow
How We Proved Earth Rotates Using a Giant Swinging Ball
People have suspected that Earth rotates for thousands of years, but how did we first prove it?
TED Talks
Sue Austin: Deep sea diving ... in a wheelchair
When Sue Austin got a power wheelchair, she felt a tremendous sense of freedom -- yet others looked at her as though she had lost something. In her art, she conveys the spirit of wonder she feels wheeling through the world. Includes...
TED-Ed
TED-Ed: The best way to apologize (according to science) | TED-Ed
Over the years, people have come up with some truly awful apologies. From classic non-apologies, to evasive excuses, and flimsy corporate promises, it's all too easy to give a bad apology. Good apologies generally share certain elements,...
TED Talks
Claudia Miner: A new way to get every child ready for kindergarten
Early education is critical to children's success -- but millions of kids in the United States still don't have access to programs that prepare them to thrive in kindergarten and beyond. Enter the UPSTART Project, a plan to bring early...