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Touch technology

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Imagine stepping into a game booth outfitted with sensors that enable you to feel what it's like to walk on the surface of Mars. Or, turning on your computer to see live video of your new grandchild across the country and being able, by wearing gloves with special sensors, to feel you're actually touching the baby.

Scientists are in the early stages of research that could lead to applications that will literally take the Internet out of this world and make it more intimate for users through the sense of touch.

For example, researchers at the University of Buffalo in New York recently developed an experimental glove that can send the sense of touch over the Internet. While its functions still are limited, its creators hope it could one day be used to let designers, sculptors, or doctors in distant locations collaborate.

At the same time, scientists at the National Aeronautics and Space Administration are expanding network and sensing technologies so that eventually planets and a variety of devices in space can communicate with one another, with astronomers on Earth, and even with consumers in both educational and game settings.

Reach out and touch someone

"As far as we know, our technology is the only way a person can communicate to another person the sense of touch," says Thenkurussi Kesavadas, director of the University of Buffalo's Virtual Reality Lab.

Known as "sympathetic haptics" because it gives one person the ability to feel what another feels, the technology is still years away from being able to transmit the feeling of Tiger Woods's golf swing to another person, for instance.

Now, Dr. Kesavadas and his team are able to transmit the sensation of touching a soft or hard object, and the contour of certain shapes. They accomplished this by using a special glove with sensors in a thimble-like device at the tip of the fingers.

It is linked by hardware and software between two personal computers via the Internet, so touch data, converted into sophisticated mathematical algorithms, can be transmitted from one person feeling an object to a person at another computer.

Kesavadas likens the technological advance to guiding a child's hand in writing.

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