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HistoryLife without Nin...Animal ElectricityPretty sappy if you...Bring in the Heavy...Benny gets PositiveWhat do frog legs...Push it!Things are heating...Speeding things...Michael got his...Ray gun?Life without elec..Use of the currentPower stationsElectricityMillenium BugFutureWWW-Board
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Many civilizations also knew about another material that attracts only iron. It was a black rock called loadstone or magnetite. Now we know that loadstone is a natural magnet. In 1550 A.D. (A.D. = After Christ), Jerome Cardan, an Italian mathematician, discovered that loadstone and amber were different. Loadstone attracted only iron, which is of course quite heavy, while amber attracted only lightweight things such as feathers, lint and paper. In 1600 William Gilbert, Queen Elizabeth the first's physician, discovered that such things as glass, diamonds, sulfur and wax, when rubbed with a cloth, had the same principles as amber. He called these things, "Electrics" from the Latin word "Electrum" meaning amber. This guy must have had a lot of time on his hands to even think about rubbing wax, glass and diamonds. In 1646, another English physician called Sir Thomas Browne, devised the word "Electricity" and so far, that term has stuck. Charles Francois de Cisternay Dufay, a gardener for the king of France in 1737, found that charged pieces of glass attracted other amber like objects but repelled other glass like objects. He had discovered two forces of electricity, positive and negative, he called them vitreous (for glasslike objects) and resinous (for amberlike objects). Dufay thought of these as more of an "Electric fluid". |
Life without Nintendo???Animal ElectricityPretty sappy if you ask meBring in the HeavyweightsBenny gets PositiveWhat do frog legs have to...
Push it!Things are heating up
Speeding things along
Michael got his gas to light...Ray gun?Life without electricity???
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| History: Bring in the Heavyweights |
 
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A ThinkQuest Project by Team 26663 |