3Blue1Brown
Snell's law proof using springs: Brachistochrone - Part 2 of 2
A clever mechanical proof of Snell's law.
Be Smart
Is Space A Thing?
Since the days of Ancient Greece, philosophers and scientists have been wondering: What is space? Is the absence of things.... a thing? These questions continued to fascinate physicists in the modern era, leading Isaac Newton, Ernst...
PBS
Is The Alcubierre Warp Drive Possible?
Inspired by Gene Roddenberry's Star Trek, physicist Miguel Alcubierre set out to transform one of the cornerstones of science fiction iconography, the Warp Drive, into reality. But is it even possible? Can we "warp" the fabric of reality...
TED Talks
Michel Laberge: How synchronized hammer strikes could generate nuclear fusion
Our energy future depends on nuclear fusion, says Michel Laberge. The plasma physicist runs a small company with a big idea for a new type of nuclear reactor that could produce clean, cheap energy. His secret recipe? High speeds,...
SciShow
Nuclear Pasta May Be the Strongest Material Ever - SciShow News
There is some super weird, noodley stuff inside neutron stars and scientists have found evidence that black holes can have strange geometries.
TED-Ed
TED-Ed: The fundamentals of space-time: Part 2 - Andrew Pontzen and Tom Whyntie
Light always travels at a speed of 299,792,458 meters per second. But if you're in motion too, you're going to perceive it as traveling even faster -- which isn't possible! In this second installment of a three-part series on space-time,...
SciShow
We Land on a Comet!
SciShow Space News gives you the update of the historic mission that has, for the first time ever, landed a spacecraft on the surface of a comet!
TED Talks
Brian Greene: Is our universe the only universe?
Is there more than one universe? In this visually rich, action-packed talk, Brian Greene shows how the unanswered questions of physics (starting with a big one: What caused the Big Bang?) have led to the theory that our own universe is...
TED Talks
TED: An action plan for solving the climate crisis | John Doerr and Ryan Panchadsaram
How much more damage do we have to endure before we realize that it's cheaper to save this planet than to ruin it? asks engineer and investor John Doerr. In conversation with Countdown cofounder Lindsay Levin, Doerr and systems innovator...
SciShow
We Found a Planet That Orbits Three Stars..Maybe?
New simulations of a triple-star system in the constellation Orion suggest that a planet might be orbiting three stars, which could drastically increase the amount of the solar systems we believe are out there forming planets! And the...
MinutePhysics
Immovable Object vs. Unstoppable Force - Which Wins
Immovable Object vs. Unstoppable Force - Which Wins
SciShow
How Intergalactic Particles Are Attacking Your Laptop
In the early 1980s IBM engineers had a hard time to to figure out inexplicable computer module failures in Denver, Colorado. When they finally cracked the puzzle, the cause turned out to be otherworldly.
SciShow
These Smart Roads Could Change the Future of Driving
From self-healing asphalt to electrified roads, technology is steering the future of driving along some exciting new paths!
SciShow
These Fish Eat Scales
Most of us don’t really give fish scales a second thought, but for some fish, the scales of others can make for a tasty snack.
Crash Course
Mercury
Mercury is the closest planet to the sun. It has no atmosphere and is, as such, covered in craters. It's also incredibly hot but, surprisingly, has water ice hiding beneath its surface.
TED Talks
TED: How COVID-19 human challenge trials work -- and why I volunteered | Sophie Rose
In April 2020, epidemiologist-in-training Sophie Rose volunteered to be infected with the virus that causes COVID-19. As a young, healthy adult, she's offering to take part in a human challenge trial, a study where participants are...
Be Smart
So You Want to go to Mars?
Can't wait to get into outer space? Well there's a bit you need to know first... Spending time in zero gravity can have some pretty extreme effects on the human body. Still scientists are already making plans for long trips to other...
PBS
5 REAL Possibilities for Interstellar Travel
The prospect of interstellar travel is no longer sci-fi. It COULD be achievable within our lifetime! But, how would an interstellar rocket-ship work? On this week's episode of Space Time, Matt talks options for interstellar travel - from...
TED Talks
How bad data keeps us from good AI | Mainak Mazumdar
The future economy won't be built by people and factories, but by algorithms and artificial intelligence, says data scientist Mainak Mazumdar. But what happens when these algorithms get trained on biased data? Drawing on examples from...
SciShow
Why Does It Take So Long to Get to Mercury?
On a cosmic scale, Mercury isn’t very far away, but it's incredibly hard to get there. Getting into orbit around it takes years of flybys in the solar system, but we're going to do it again!
SciShow
Why Aren't Commercial Jets Getting Faster?
Airplanes are one of the quickest ways to get anywhere, but commercial jets haven't gotten much fast since the 1950's. Why is that?
SciShow
Science Superlatives of 2015!
Learn about the strongest, slowest, and fastest science in 2015!
PBS
Escape The Kugelblitz Challenge
In the last episode Matt discussed how the Penrose Diagram enabled you to map how black holes affect Space Time. In this episode you can use that knowledge to stop an all-too-real threat to our planet. Aliens are trying to destroy the...
MinutePhysics
Why Are Airplane Engines So Big?
The answer to this question has everything to do with drag & kinetic energy vs momentum change (thrust) ie, a bigger engine fan allows for a larger air mass to be accelerated a smaller amount to give the same thrust as you'd get from a...