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The Swedish battery in the middle of the passage proved to be very effective even though it was subjected to heavy fire. Though several of their gun sloops were forced to withdraw from the battle line, the Swedes managed to beat back the initial Russian attack. More attacks followed during the day but Swedes were still able to hold their line.
The NCC improved Gassner's model by replacing the plaster of Paris with coiled cardboard, an innovation that left more space for the cathode and made the battery easier to assemble. It was the first convenient battery for the masses and made portable electrical devices practical, and led directly to the invention of the flashlight.
The Middle Passage was the stage of the Atlantic slave trade in which millions of enslaved Africans [1] were forcibly transported to the Americas as part of the triangular slave trade. Ships departed Europe for African markets with manufactured goods (first side of the triangle), which were then traded for slaves with rulers of African states ...
The Baghdad Battery is the name given to a set of three artifacts which were found together: a ceramic pot, a tube of copper, and a rod of iron. It was discovered in present-day Khujut Rabu , Iraq in 1936, close to the ancient city of Ctesiphon , the capital of the Parthian (150 BC – 223 AD) and Sasanian (224–650 AD) empires, and it is ...
The multiple and rapid developments for connecting Leyden jars during the period 1746–1748 resulted in a variety of divergent accounts in secondary literature about who made the first "battery" by connecting Leyden jars, whether they were in series or parallel, and who first used the term "battery". [21]
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An electric battery is a source of electric power consisting of one or more electrochemical cells with external connections [1] for powering electrical devices. When a battery is supplying power, its positive terminal is the cathode and its negative terminal is the anode. [2]