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Taming Twin Tornadoes

Every time a jet airplane flies through the sky, it creates two invisible tornados. They're not the kind of tornados that strike in severe weather. These tornados are called vortices and can cause problems - similar to the problems tornados on the land cause--for airplanes that may pass too close to the strong wind. ...

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TwinTornadoes
Astronomy

Pluto: Beyond Neptune Or Not?

Did I catch you? Pluto (newly classified as a dwarf-planet) comes after planet Neptune. Right? Depends. Pluto takes 248 years to orbit the Sun. Most of that time Pluto's orbit puts it outside the ... Continue reading

Pluto
Physics

The Early Universe Soup

In the first few millionths of the second after the Big Bang, the universe looked very different than today. In fact the universe existed as a different form of matter altogether: the quark-gluon ... Continue reading

TheEarlyUniverseSoup
Biology

Water, Water Everywhere, But Not A Drop To Drink

That line, from The Rime of the Ancient Mariner, by Samuel Taylor Coleridge, captures a truism -- we cannot drink salt water to quench our thirst. But why not? The answer lies in understanding the ... Continue reading

WaterWater
Physics

The Doppler Effect

As any object moves through the air, the air near the object is disturbed. The disturbances are transmitted through the air at a distinct speed called the speed of sound, because sound itself is just ... Continue reading

TheDopplerEffect

NASA Hits a Hole-In-One

NASAHitsaHoleInOneHow are NASA and golf related? Ask the professional golfers using clubs made from NASA's space-age technology. NASA needed stronger, more durable materials for its space missions. A landmark discovery was made during a research project with vitrified metals in 1992. A vitrified metal is a frozen liquid that fails to crystallize during solidification, combining the properties of glass and metal not found in nature. Liquidmetal is a new class of vitrified metals and is known as metallic glass. Also called Vitreloy, Liquidmetal is an alloy blend more than twice as strong as titanium, but softer and more elastic.

The product has been strengthened since its discovery and now goes by the name trademarked LiquidMetal. Licensed to a company in Lake Forest, Calif., Liquidmetal golf clubs were the first commercial application of NASA's technology. The product has dozens of other potential commercial uses, including wrist watches, cellular phones and industrial machinery.

As a nation we have progressed because of innovations to basic materials. In the 1800's, Sir Henry Bessemer of England invented a process to mass-produce steel inexpensively. During the 1900's, chemists invented thermo-plastics. You don't have to look far to see the impact plastics have had on our lives. This NASA-related technology appears to have the same potential. A major breakthrough for the 21st century, the Liquidmetal alloy, is being considered to replace titanium in medical instruments, cars, the military and aerospace industry. For those with an active lifestyle, this NASA-based technology has recently expanded to the construction of recreational equipment such as tennis rackets, bicycle frames, baseball bats and more. NASA's Vision for Space Exploration comes closer to reality as technology and commercial industry work together, finding safer and more economical ways to soar into space and help live better lives here on Earth.