Accumulate, store and discharge at will a high-voltage electric charge The jar was of fundamental importance in the study of electrostatics.
Who or what were the first living creatures sent up to test the hot air balloon invented and first flown (unmanned) by the Montgolfier brothers in France earlier in 1783?
Which French scientist invented the first satisfactory revolving light for use in lighthouses, and has a type of theatre light named after him?
