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Gilbert cloud chamber, assembled An alternative view of kit contents. The lab contained a cloud chamber allowing the viewer to watch alpha particles traveling at 12,000 miles per second (19,000,000 m/s), a spinthariscope showing the results of radioactive disintegration on a fluorescent screen, and an electroscope measuring the radioactivity of different substances in the set.
Geocaching (/ ˈ dʒ iː oʊ k æ ʃ ɪ ŋ /, JEE-oh-KASH-ing) is an outdoor recreational activity, in which participants use a Global Positioning System (GPS) receiver or mobile device and other navigational techniques to hide and seek containers, called geocaches or caches, at specific locations marked by coordinates all over the world. [2]
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 March 2025. American multinational home improvement supplies retailing company The Home Depot, Inc. A Home Depot in Onalaska, Wisconsin Company type Public Traded as NYSE: HD DJIA component S&P 100 component S&P 500 component Industry Retail (home improvement) Founded February 6, 1978 ; 47 years ago ...
A person taking a photo of a located benchmark on a statue. Benchmarking, also known as benchmark hunting, [1] is a hobby activity in which participants find benchmarks (also known as survey markers or geodetic control points).
Pages in category "Geocaching" The following 6 pages are in this category, out of 6 total. This list may not reflect recent changes. ...
A Travel Bug is a dog tag used in Geocaching. Produced by Groundspeak, the bugs can be moved from cache to cache, with unique tracking numbers allowing their movements to be tracked through the company's geocaching website. Some tags are fastened to an object, known as a "hitchhiker", before they are released into a cache.
Location based-games can be digital or physical in nature. For example, Geocaching is an outdoor recreational activity in which participants use a Global Positioning System (GPS) receiver or mobile device and other navigational techniques to hide and seek containers.
A common misconception is that the idea for Munzee was inspired by Geocaching, a game in which participants search for a hidden cache using GPS technology.However, Munzee co-founder Aaron Benzick (having never been a geocacher) came up with the idea of using QR codes for a game in 2008, but smartphone technology and capability were not available at the time. [5]