Kingda Ka redefines thrill rides with record-breaking speed and height.
The Fastest Coaster in America
Upstop wheels apply friction under the tracks to prevent roller coasters from derailing during zero-G drops and turns.
Why Don't Roller Coasters Fly Off the Tracks?
A hidden catapult launch system propels the 10-ton coaster up a 90-degree incline.
How Kingda Ka Catapulted to the Title of World's Tallest Roller Coaster
Kevlar's strands form hydrogen bonds that stick like glue.
Why Kevlar is Stronger than Steel
Special chemicals give even water what looks like magical properties.
How Fiber Optic Cable Bends Light
How the ISS can help us explore and colonize the solar system.
Interesting Facts About the International Space Station
Using advanced robotics and 6,000 workers, Tesla's factory can produce 2,000 electric cars per week.
Tesla Gives the Factory Assembly Line a 21st Century Upgrade
The "Tortoise" was built by William Grey Walter in 1948 and used sensors for light and movement to form a simple nervous system.
The World's First Decision-Making Robot
The US Navy's new coastal vessels use the latest technology to achieve amazing speed and agility.
7 Facts about Littoral Combat Ships
Instead of a propeller and a rudder, LCS ships use high-powered water jets for propulsion and maneuvering.
Water Jet Engines Give Navy LCS Ships Incredible Maneuverability
The new Littoral Combat Ships use a trimaran design for greater speed, agility, and stability.
The USS Indepedence is the Navy's first high-performance trimaran combat ship
Amazing statistics about the world's tallest free-standing tower.
Five Amazing Facts About the Tokyo Skytree
The tower is almost double the height of Chicago's Hancock Center -- but on a footprint 51% smaller.
How the Tokyo Skytree Became the Tallest Free-Standing Tower in the World
Sound mirrors helped Great Britain detect enemy aircraft during World War One.
Sound Mirrors Can Detect Enemy Planes
Located in Cornwall, England, these biomes are home to many diverse climates and environments.
These Domes Are Home to Multiple Ecosystems
Did you know billiard balls were originally made of ivory?
How are Billiard Balls Made?