TED Talks
Patricia Burchat: Shedding light on dark matter
Physicist Patricia Burchat sheds light on two basic ingredients of our universe: dark matter and dark energy. Comprising 96% of the universe between them, they can't be directly measured, but their influence is immense.
TED Talks
TED: Why stay in Chernobyl? Because it's home. | Holly Morris
Chernobyl was the site of the world's worst nuclear accident and, for the past 27 years, the area around the plant has been known as the Exclusion Zone. And yet, a community of about 200 people live there -- almost all of them elderly...
SciShow
Asteroid Fly-By!
Today Emily Graslie of The Brain Scoop gives us the news about a couple of near- misses for our planet and an update on where astronomers think habitable life might be found in other star systems.
SciShow
What We Learned from the Kepler Space Telescope - SciShow News
October was bittersweet for space scientists as we said goodbye to both the Kepler Space Telescope and Dawn mission.
SciShow
Understanding the Most Extreme Numbers in the Universe
Humans are great at understanding medium-sized things, like how far the supermarket is from your house, or how to find the bathroom in the dark. But imagining distances in light-years is a lot harder -- so you'll have to use a trick or two.
MinutePhysics
Spacetime Intervals: Not EVERYTHING is Relative | Special Relativity Ch. 7
This video is chapter 7 in my series on special relativity, and it covers the idea that some things AREN'T relative: there IS a sense of absolute length and absolute time, which can be agreed upon from all moving perspectives (as long as...
TED Talks
TED: The 15-minute city | Carlos Moreno
Living in a city means accepting a certain level of dysfunction: long commutes, noisy streets, underutilized spaces. Carlos Moreno wants to change that. He makes the case for the "15-minute city," where inhabitants have access to all the...
3Blue1Brown
Why does this product equal pi/2? A new proof of the Wallis formula for pi.
A new and more circularly proof of a famous infinite product for pi.
Bozeman Science
Work Energy Principle
In this video Paul Andersen explains how the kinetic energy gained by an object is equivalent to the work done on the object. The force on the object must act parallel or antiparallel to the motion of the object to do work. Several...
Bozeman Science
Information Exchange
Paul Andersen explains how organisms use information to communicate with each other. Signals are used by bees doing the waggle dance to communicate the location of flowers. Territorial markings are used by wolves to establish territory....
Bozeman Science
Calculating the Electric Force
In this video Paul Andersen explains how you can use Coulomb's Law to determine the electric force between two charges. In Physics 1 students should be able to calculate the force between two charges and in Physics 2 students should be...
PBS
When Time Breaks Down
We learned how motion gives matter its mass, but how does motion affect time? Let's dive deeper into the true nature of matter and mass by exploring Einstein's photon clock thought experiment, and the phenomenon that is time dilation.
TED-Ed
TED-ED: How small are we in the scale of the universe? - Alex Hofeldt
In 1995, scientists pointed the Hubble Telescope at an area of the sky near the Big Dipper. The location was apparently empty, and the whole endeavor was risky _ what, if anything, was going to show up? But what came back was nothing...
TED Talks
Andrew Connolly: What's the next window into our universe?
Big Data is everywhere — even the skies. In an informative talk, astronomer Andrew Connolly shows how large amounts of data are being collected about our universe, recording it in its ever-changing moods. Just how do scientists capture...
SciShow
The Coming Robot Swarms
We might soon be following the logic of animal swarms to help us solve problems like traffic and constructing buildings in dangerous places, like Mars!
SciShow
Catching Solar Wind: A Truly Endless Energy Source?
We could quite possibly catch solar winds as a means for endless energy, and though it sounds like science fiction, we have the materials to do this now.
SciShow
What the Crater that Impacted the Dinosaurs Taught Us About Mars
We've been trying to understand Mars for years, but some scientists think that ancient craters on earth might hold some answers to our red neighbor's history.
SciShow
SciShow Quiz Show: Reid Reimers
Michael Aranda hosts SciShow's new Quiz Show! Hank and Reid have a battle of wits to win prizes for two lucky Subbable Subscribers! Chapters View all MICHAEL ARANDA 0:17 REID REIMERS 0:28 KEITH CHEIM 1:34 SPERM WHALE 4:26 COLLOID 5:30 A...
TED Talks
TED: Adventures of an interplanetary architect | Xavier De Kestelier
How will we live elsewhere in the galaxy? On earth, natural resources for creating structures are abundant, but sending these materials up with us to the Moon or Mars is clunky and cost-prohibitive. enter architect Xavier De Kestelier,...
MinutePhysics
Distance and Special Relativity - How Far Away is Tomorrow?
In this episode we talk about distance in space and time and answer "How far away is tomorrow?"
PBS
How Gaia Changed Astronomy Forever
The great advances in any science tend to come in sudden leaps. April 25th of 2018 marks the beginning of just such a leap for much of astronomy. In the early hours of the morning, the Gaia mission's second data release dropped. Our...
TED-Ed
TED-ED: The invisible motion of still objects - Ran Tivony
Many of the inanimate objects around you probably seem perfectly still. But look deep into the atomic structure of any of them, and you'll see a world in constant flux - with stretching, contracting, springing, jittering, drifting atoms...
Bozeman Science
Wavelength
In this video Paul Andersen explains how the wavelength is the distance between oscillations in a wave. In a longitudinal wave this might be the distance between areas of compression. In a transverse wave it might be the distance between...
SciShow
Gravitation: The Four Fundamental Forces of Physics #3
Hank continues our series on the four fundamental forces of physics with a description of gravitation -the interaction by which physical bodies attract with a force proportional to that of their masses, and which is responsible for...