The Absurd Engineering Behind the Internet

A spring mechanism gets shorter when pulled instead of stretching

We built a giant zipper - here's what we discovered

Jet engine blades face 22 tons of force at 12,500 RPM without breaking apart

Scientists heated a lithium-ion battery until it failed and recorded the reaction inside

70,000 Americans were exposed to a DuPont chemical linked to six diseases

Watch a metal projectile fly across a 45-tesla magnet - then the magnetic field takes over

Watch an asteroid explode over Russia - then the shockwave hits 90 seconds later

How a heartbeat supposedly helped the CIA rescue a pilot behind enemy lines