МНБНЕ ПЮГБКЕВЕМХЕ

David Ulmer, 55, created "Geocaching"--a hide-and-seek, high-

tech treasure hunt game for gadget-loving adults that uses a

hand-held Global Positioning System (GPS).

The idea of Geocaching is to set up caches all over the world

and share their locations on the Internet. GPS users use the

location coordinates to find the caches. Once found, they take

something from the cache and then leave something, and write

about it in the logbook.

The word Geocaching stands for this: GEO for geography, and

CACHING for the process of hiding a cache. A cache is a term

used in hiking/camping as a hiding place for concealing and

preserving provisions, or a term for stashed provisions used

by the military or outdoorsmen. About 90,000 people in 103

countries are Geocaching players seeking items hidden in

40,000 caches around the world with the help of their GPS

units and using clues posted on http://www.geocaching.com

Ulmer said he came up with the idea because he wanted to find

a new use for the GPS navigation system, a constellation of

satellites that provide navigation signals free to anybody

with a receiver. A GPS unit can determine your approximate

location within six to 20 feet on the planet. One needs to

enter a "waypoint" where the geocache is hidden.

The Geocaching website calls it "the sport where you are the

search engine". Geocaching constantly reinvents itself.