Easy electrical experiments and how to make them; (1918)
Dickinson, Leonard Perley, 1874- [from old catalog] · Chicago, F. J. Drake & co · leaf 162
TO MAKE AN ELECTRIC GYROSCOPE. PART I. The gyroscope has long been known to physicists as aninteresting scientific toy. In an elementary form it has beenused probably by many of the young readers of this book.The form usually sold in toy shops, consists of a lead wheelwith an extremely heavy rim… … ing by one side from the edge of a table or ether convenientsupport. The common top so dear to every boys heart isonly a special form of gyroscope. Every one knows that asa top spins rapidly it will stand upon its point in apparentdefiance of the law of gravity, and if displaced from itsposition…
Electric apparatus and appliances · Electricity
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