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200
Chinese military
from 200 bce to 220 bce the chinese military comanders used compasses -
Period: 206 to
History of Electricity
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May 25, 600
thales discovered
Thales discovered in 600 bce in greece that when amber rubbed with animal fur attracted light objects. -
May 25, 1200
Ships get compasses
in the 1200's lodestones were being to be used on ships to navigate the waters -
Otto von Guericke
Otto built the first electric generating machine in the 1660 -
Intresting experments
in 1700 many english men published there woks on experments they did. they removed air from glass globe, and made the globe roate while rubbing with a wool cloth. -
hooland, pieter van musschenbroek
they invented a storage jar. which they proved that electricity can be stored. -
Ben franklin
ben franklin conducted the experment when he took his keys and tied them to a kite and flew the kite in a thunder storm and the electricty in the air charged the string and sent it into the leyden jar -
charles de coulomb
he was the first person to measure the amount of electricity and magnetism gentated in a circuit. -
luigi galvani
dead frogs muscles twitched when it was placed near an electrical machine -
Alessandro Volta
he was born in como, italy. was a professor. he disagreed with galvanis hypothesie. his discovers led to invention of batterys. -
Andre ampere
was a french mathematician and scientist. he did important experments on electric currents. he made it so we can measure current. -
Michael faraday
he did experments on elecricity and magnetism. his inventions led to the inventions of the motor, genrator, transformer, telegraph, and telephone. -
thomas alva edison
he invented the incandescent light bulbs. it took him years to find the right filiments. -
Nikola Tesla
was one of thomas edisons employees, he was also an inventer from croatia. he invented AC electric. -
Huang-ti
Huang-ti was supposed to be the first person to use a lodestone for a compass.
