Kingda Ka redefines thrill rides with record-breaking speed and height.

Upstop wheels apply friction under the tracks to prevent roller coasters from derailing during zero-G drops and turns.

A hidden catapult launch system propels the 10-ton coaster up a 90-degree incline.

Kevlar's strands form hydrogen bonds that stick like glue.

Special chemicals give even water what looks like magical properties.

How the ISS can help us explore and colonize the solar system.

Using advanced robotics and 6,000 workers, Tesla's factory can produce 2,000 electric cars per week.

The "Tortoise" was built by William Grey Walter in 1948 and used sensors for light and movement to form a simple nervous system.

The US Navy's new coastal vessels use the latest technology to achieve amazing speed and agility.

Instead of a propeller and a rudder, LCS ships use high-powered water jets for propulsion and maneuvering.

The new Littoral Combat Ships use a trimaran design for greater speed, agility, and stability.

Amazing statistics about the world's tallest free-standing tower.

The tower is almost double the height of Chicago's Hancock Center -- but on a footprint 51% smaller.

Sound mirrors helped Great Britain detect enemy aircraft during World War One.

Located in Cornwall, England, these biomes are home to many diverse climates and environments.

Did you know billiard balls were originally made of ivory?

The Millau Viaduct is the tallest bridge on Earth. It measures 1,125 feet tall, 1.5 miles long, and the bridge deck sits nearly 900 feet above the ground.

The tower is almost double the height of Chicago's Hancock Center -- but on a footprint 51% smaller.

Oil dampers, modeled on the ones on NASA's launch towers, allow the Skytree to sway instead of collapse.

Polytetrafluoroethylene also known as PTFE is the non-stick coating used on pans. This demonstration shows how PTFE can help reduce friction.

The Millau Viaduct was built over one of the deepest, widest, and windiest canyons in the world. The two ginormous bridge deck pieces were slid together and assembled like a giant jigsaw puzzle.

Reusing spacecraft means landing them on the ground -- and using airbags to protect the crew on impact.

Engineer Gustave Eiffel completely revolutionized bridges when he proposed an arch that sat underneath the bridge deck. The design was later a key part of his most famous creation, the Eiffel Tower.

The Bigelow Expandable Activity Module is small and light to launch, and then expands once in orbit.

The stadium’s twin arches soar over 300 ft above the playing field. Together, they distribute 19 million pounds of thrust into four concrete abutments.

Instead of a propeller and a rudder, LCS ships use high-powered water jets for propulsion and maneuvering.

When it was originally built, the Hoover Dam was the largest concrete structure in the world. It weighs 6.6 million tons and stands 700 ft tall. The biggest challenge engineers faced while building the dam was the extreme heat.

The new Littoral Combat Ships use a trimaran design for greater speed, agility, and stability.

Using advanced robotics and 6,000 workers, Tesla's factory can produce 2,000 electric cars per week.

3,160 tons of water per second pour over Niagara Falls. As the water crashes over the top, all the potential energy is converted into kinetic energy and comes down with tremendous force.

The "Tortoise" was built by William Grey Walter in 1948 and used sensors for light and movement to form a simple nervous system.

The number one rule of submarine escape is "never ever hold your breath."