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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.
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 ...
Salter Science was a brand of science kits sold by Thomas Salter Ltd., a Scotland-based company which manufactured toys and science activity kits for children. [1] Kits included activities with electricity, microscopy, magnetism and crystal gardens, but the company is probably best known for their chemistry sets. The company also produced other ...
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.
Materials science: analytical chemistry, characterization, coatings, compounds and structures, corrosion studies, nanoparticles and materials; National security: aviation and aerospace technologies, chemical and biological defense systems, cyber innovations, ground tactical systems, maritime technologies
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