PBS
Quantum Invariance & The Origin of The Standard Model
Our laws of physics are equations of motion, along with some associated constants. We've talked about the symmetries of these equations, and how they lead us to conserved quantities. But this is just the tip of the theoretical iceberg -...
TED Talks
Krista Tippett: Reconnecting with compassion
The term "compassion" -- typically reserved for the saintly or the sappy -- has fallen out of touch with reality. At a special TEDPrize@UN, journalist Krista Tippett deconstructs the meaning of compassion through several moving stories,...
TED Talks
TED: Lifesaving scientific tools made of paper | Manu Prakash
Inventor Manu Prakash turns everyday materials into powerful scientific devices, from paper microscopes to a clever new mosquito tracker. From the TED Fellows stage, he demos Paperfuge, a hand-powered centrifuge inspired by a spinning...
SciShow
Genesis, IBEX, and Cassini: SciShow Talk Show
Dan Reisenfeld from the University of Montana joins us this week to talk about his work with three different NASA missions (Genesis, IBEX, and Cassini), and Jessi from Animal Wonders brings along Ginger and Maui the Green Cheek Conures!
TED Talks
TED: The case for engineering our food | Pamela Ronald
* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences. Pamela Ronald studies the genes that make plants more resistant to disease and stress. In an eye-opening talk, she...
TED Talks
TED: My battle to expose government corruption | Heather Brooke
Our leaders need to be held accountable, says journalist Heather Brooke. And she should know: Brooke uncovered the British Parliamentary financial expenses that led to a major political scandal in 2009. She urges us to ask our leaders...
TED-Ed
TED-Ed: How to take a great picture - Carolina Molinari
Have you ever looked at your camera and wondered what all of those buttons actually do? For manual photography, the aperture, shutter speed and ISO sensitivity can all be manipulated to get just the right amount of light. Carolina...
TED-Ed
TED-Ed: What are those floaty things in your eye? - Michael Mauser
Sometimes, against a uniform, bright background such as a clear sky or a blank computer screen, you might see things floating across your field of vision. What are these moving objects, and how are you seeing them? Michael Mauser...
TED Talks
TED: Did the global response to 9/11 make us safer? | Benedetta Berti
If we want sustainable, long-term security to be the norm in the world, it's time to radically rethink how we can achieve it, says TED Fellow and conflict researcher Benedetta Berti. In an eye-opening talk, Berti explains how building a...
Bozeman Science
Electric Force
In this video Paul Andersen explains how electric force on an object inside a field can be calculated by multiplying the charge of the object (in C) times the electric field strength (in N/C).
PBS
The First Quantum Field Theory
Quantum mechanics is perhaps the most unintuitive theory ever devised. And yet it's also the most successful, in terms of sheer predictive power. Simply by following the math of quantum mechanics, incredible discoveries have been made....
TED Talks
Sonaar Luthra: Meet the Water Canary
After a crisis, how can we tell if water is safe to drink? Current tests are slow and complex, and the delay can be deadly, as in the cholera outbreak after Haiti's earthquake in 2010. TED Fellow Sonaar Luthra previews his design for a...
SciShow
How Ancient Buildings Became Accidental Seismographs
We use seismographs to record the time, location and magnitude of earthquakes as they happen. But in the last three decades, a new field of study has emerged that is learning to track these details about earthquakes of old using the...
SciShow
Why Shouldn't You Look at the Sun?
You might have done it accidentally or intentionally but one thing is clear: Don't stare at the the sun! Hank Green explains why.
TED-Ed
TED-Ed: The Higgs Field, explained - Don Lincoln
One of the most significant scientific discoveries of the early 21st century is surely the Higgs boson, but the boson and the Higgs Field that allows for that magic particle are extremely difficult to grasp. Don Lincoln outlines an...
Crash Course
The Future of Artificial Intelligence
Today, in our final episode of Crash Course AI, we're going to look towards the future. We've spent much of this series explaining how and why we don't have the Artificial General Intelligence (or AGI) that we see in the movies like...
TED Talks
Scott Fraser: Why eyewitnesses get it wrong
Scott Fraser studies how humans remember crimes -- and bear witness to them. In this powerful talk, which focuses on a deadly shooting at sunset, he suggests that even close-up eyewitnesses to a crime can create "memories" they could not...
SciShow
The Mysterious Origins of Our Galaxy's Fastest Stars
A new paper that borrows old astrological data from the Voyager 2 probe has used brand-new computer simulations to find some new weird data about Uranus’s magnetic field. Another paper has new information about our galaxy’s fastest...
TED Talks
TED: The unexpected challenges of a country's first election | Philippa Neave
How do you teach an entire country how to vote when no one has done it before? It's a huge challenge facing fledgling democracies around the world -- and one of the biggest problems turns out to be a lack of shared language. After all,...
SciShow
Why Do We Still Teach Freud If He Was So Wrong?
Freud is one of the most famous psychologists ever, but a lot of the things he taught are just… well, wrong. So why do we still spend so much time talking about this dude in psychology classes?
MinutePhysics
The Higgs Boson, Part II - What is Mass?
What is mass and what does it have to do with the Higgs Boson?
SciShow
5 Groundbreaking Women in Engineering
After many years of quietly changing the world, women are finally receiving recognition for contributions in STEM. Let’s celebrate these 5 groundbreaking women, and their contributions to the field of engineering
TED Talks
Antony Gormley: Sculpted space, within and without
Legendary sculptor Antony Gormley riffs on space and the human form. His works explore the interior space we feel within our own bodies -- and the exterior space we feel around us, knowing that we are just dots in space and time.
Crash Course
How to Identify Molecules - Proton NMR: Crash Course Organic Chemistry
If you were given a chemical and told to identify it, how would you go about doing that? You could look at different factors like color, boiling point, melting point, or smell, but the answer still might not be clear. Thankfully, today...