MinutePhysics
Why Do Boats Make This Shape?
This video is about the "Kelvin wake" shape of water wakes behind boats - we talk about mach angle, dispersion, superposition of many waves, and how these all lead to the pattern of a wake. We don't get into Froude number though...
MinutePhysics
Windmills Are NOT Like Dams
The Solution to the Windmill Paradox. This video is about the tradeoff of Windmills: the fact that the more kinetic energy you extract from the wind the slower the wind goes, the less wind you have to extract energy from, etc. How much...
MinutePhysics
Another Portal Paradox
What happens if you extend a piston through a portal? Or try to sandwich a cube between two portals? That's right, it's time to explore more portal paradoxes!
SciShow
This Problem Could Break Cryptography
What if, no matter how strong your password was, a hacker could crack it just as easily as you can type it? In fact, what if all sorts of puzzles we thought were hard turned out to be easy? Mathematicians call this problem P vs. NP, it...
SciShow
Slingshot Spiders Put Fighter Pilots to Shame
There are all kinds of ways that a spider can catch its prey, but few species are as extreme as the slingshot spider!
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
Do We Need a Negative Leap Second?
Did you know that last year we had 28 of the fastest days ever recorded? Earth's rotation can be affected by a number of things, and scientists think we might someday need an unprecedented adjustment: deleting a second!
SciShow
What is Wind?
We all know that warm air rises, but how does this scientific fact influence our weather and create those flows of air molecules that we know of as wind? In this episode of SciShow, Hank explains where wind comes from, what factors...
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
Can It Be Too Hot To Fly?
How does heat affect airplanes? Turns out heat, speed and density connect to create dangerous situations.
SciShow
A Surprisingly Simple Secret to Supersonic Flight
Making a faster plane takes more than building better engines and structures. To go supersonic, engineers had to solve hundreds of problems -- including ditching one of the biggest assumptions in aerodynamics!
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.
SciShow
5 Bizarre Aircraft That Pushed the Boundaries of Engineering
You might think most planes look the same, but here are five of the most bizarre aircraft that, no matter their appearance, still managed to fly.
SciShow
Oh No...Is Nature Going to Make Climate Change WORSE?! | SciShow News
Photosynthesis plays a huge role in regulating the earth's CO2. But what happens when the temperature gets high enough that photosynthesis slows down?
SciShow
Why Scientists Want to Build a Shoebox-Sized Particle Accelerator
If you want to make particles move really fast, you have to build a particle accelerator that is really big, right? Not anymore! Hosted by: Hank Green
SciShow
Why Do Golf Balls Have Dimples?
The size, shape, and designs of the balls used in sports are usually the results of decades or even centuries of trial and error, and the cute, dimply li'l golf ball is no different!
TED-Ed
TED-Ed: Who is the fastest creature in mythology? | Iseult Gillespie
It's time for the Myth Olympics: the eternal arena in which creatures and deities compete for glory. Almost every mythical tradition claims one creature as the fastest— from goddesses who run like the wind to creatures who outstrip every...
TED-Ed
TED-Ed: What did people do before anesthesia? | Sally Frampton
The quest for anesthetics that could induce unconsciousness and enable more meticulous surgeries began around the early 3rd century CE. Before anesthesia was widely used, patients had to consciously endure every moment of surgery. So,...
TED-Ed
TED-Ed: How do airplanes stay in the air? | Raymond Adkins
By 1917, Albert Einstein had explained the relationship between space and time. But, that year, he designed a flawed airplane wing. His attempt was based on an incomplete theory of how flight works. Indeed, insufficient and inaccurate...
TED Talks
TED: The fascinating physics of insect pee | Saad Bhamla
Scientist Saad Bhamla is on a mission to answer a question most people don't think to ask: How do insects pee? Taking inspiration from the incredible "butt flickers" of the glassy-winged sharpshooter, Bhamla presents a fascinating study...
Curated Video
First Recorder Recovered from Train Not Working
RESTRICTION SUMMARY: AP CLIENTS ONLYSHOTLIST:AP TELEVISION - AP CLIENTS ONLYHoboken, New Jersey - 2 October 20161. NTSB workers walking2. SOUNDBITE (English) Bella Dinh-Zarr, NTSB Vice Chairman: "Yesterday our recorders experts worked...
Curated Video
First Recorder Recovered from Train Not Working
RESTRICTION SUMMARY: AP CLIENTS ONLYSHOTLIST:AP TELEVISION - AP CLIENTS ONLYHoboken, New Jersey - 2 October 20161. National Transportation Safety Board (NTSB) workers walking2. SOUNDBITE (English) T Bella Dinh-Zarr, NTSB Vice Chairman:...
Curated Video
First Recorder Recovered from Train Not Working
FOR CLEAN VERSION SEE STORY NUMBER: apus064242Officials say one data recorder recovered so far from the New Jersey Transit commuter train that crashed in Hoboken killing one and injuring more than 100 was not functioning the day of the...