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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.
However, during the 1950s, Gilbert introduced a set targeting girls. They sold the set in an attractive pink box, but the set identified girls as "laboratory assistants" or "lab technicians," not scientists. [5] [10] In 1971, a Johnny Horizon Environmental Test Kit was licensed by the U. S. Department of the Interior and produced by Parker ...
As the first electronic educational toy, [6] [7] the Little Professor is a common item on calculator collectors' lists. [8] In 1976, the Little Professor cost less than $20. More than 1 million units sold in 1977. [9]
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 ...
Alphabet blocks. The identification of specific toys as having an explicitly educational purpose dates to the 1700s. [11] In 1693, in Some Thoughts Concerning Education, liberal philosopher John Locke asserted that educational toys could enhance children's enjoyment of learning their letters: "There may be dice and play-things, with the letters on them to teach children the alphabet by playing ...
Walmart hasn't hung up their sale signs just yet. Keeping the deals rolling in, Walmart's kept stellar pricing on items to rival Amazon Prime Day this week. ... Dreo Tower Fans for Home. $60 $69 ...
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