Best Inventions of 2001

Inventions come in all shapes and sizes. Some are as simple as purple catsup. Others push the limits of quantum physics. The real measure of an invention is not just how well it works or how impressively it is engineered, but how it changes our lives.

Steri-Pen

inventions 2001 steri pen

Stan Musilek for TIME

Inventor: Miles Maiden

A few months back, we probably would have recommended a portable water sterilizer only to people traveling abroad or going backcountry camping. But as fears persist of terrorists polluting the water supply, some folks might feel better knowing they can easily purify water at home as well. Powered by two AA batteries, the cordless Steri-Pen uses ultraviolet light to decontaminate a 16-oz. container of water in about a minute. Its maker claims Steri-Pen will kill 99.99% of the bacteria and viruses found in water.

Availability: Now, for $199
To Learn More: www.hydro-photon.com

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