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The Banach–Tarski Paradox

Did you know that it is possible to cut a solid ball into 5 pieces, and by re-assembling them, using rigid motions only, form TWO solid balls, EACH THE SAME SIZE AND SHAPE as the original? This theorem is known as the Banach-Tarski paradox..


Airliners aren’t supposed to go vertical. Boeing’s 787-9 Dreamliner is the latest in the aviation giant’s modern airliner series, and Boeing is eager to show the plane off at next week’s Paris Air Show. So eager, in fact, that video of the Dreamliner’s practice flight is sweeping through the Internet. Here’s why:
That vertical flight is, to use the technical terminology, completely bonkers. It’s the kind of thing fighter jets do, not workman-like airliners designed to carry 280 passengers through the sky across distances of up to nine thousand miles. It's hard to fathom...

New Simulation Re-Spins the Cosmic Web More Accurately | Video

Scientists have cooked up a new time-lapse simulation of the universe's evolution, a computerized view that shows how the cosmos may have looked over the course of billions of years.

The cosmic simulation models the large-scale changes in the structure of the universe, tracing 13 billion years of evolution starting 12 million years after the Big Bang. The computer model, called Illustris, is special because it covers a wide area — a cosmic cube that is about 350 million light-years on each side — and also focuses on some details that are difficult to calculate while...

A Quick Look Around the LHC | Oxford Sparks

The science behind the animation Transcription. Teaching resources The Large Hadron Collider may not work quite as seen in our animation, but much of the science mentioned is accurate. Here's a little more background on exactly what's going on.

Dad makes an awesome spaceship simulator for his kids | ScienceDump

Awesome dad Jeff Highsmith builds a spaceship simulator for his kids out of wood and electronics that he assembles himself over four months. Every button, switch, and control knob actually produces lights, sounds, and reactions thanks to his clever wiring.

Microscale 3D printing of a spaceship | ScienceDump

This video shows a realtime recording of the 3D micro printing process by two-photon polymerization. Overall printing time was less than 50 seconds for the ship with dimensions 125µm x 81µm x 26.8µm (l x w x h). The length of the spaceship is approximately equal to the diameter of a human hair.

WATCH: How do planes stay in the sky? - ScienceAlert

Watch the video above to see Henry explain the amazing physics behind planes, and remember to grab your seat in awe next time you fly. Because how cool is using physics to make our lives better?

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