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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.
"The 8 Most Wildly Irresponsible Vintage Toys" -- page 1 and page 2 at Cracked.com: Includes humorous discussions of some of A.C. Gilbert's more ill-advised products for pre-teens: A glass blowing kit (#8); a molten lead casting kit (#7); a chemistry set (#3) which included potassium permanganate, ammonium nitrate and instructions on how to ...
STEM learning might sound like some kind of fad simply because the acronym is fairly new, but the truth is that kids are hard-wired to find these academic disciplines (science, technology ...
Geology Bundle Science Kits. You can’t go wrong with this set of three geology science kits. There’s a crystal-growing lab that includes a light-up base for kids to display their colorful ...
The prevailing model of atomic structure before Rutherford's experiments was devised by J. J. Thomson. [1]: 123 Thomson had discovered the electron through his work on cathode rays [2] and proposed that they existed within atoms, and an electric current is electrons hopping from one atom to an adjacent one in a series.
Discovery Kids (stylized as discovery k!ds) is a brand name owned by Warner Bros. Discovery. Starting as a television block within Discovery Channel , the brand expanded as a separate television channel in October 1996. [ 1 ]
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