Which of the following inventions was not powered by electricity?
A.
telegraph
B.
telephone
C.
internal combustion engine
D.
lightbulb
C or A @awolflover1
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OpenStudy (hannaha):
A. telegraphs were delivered on foot by mail boys
OpenStudy (purple_pink):
oh wow so much walking lol
OpenStudy (hannaha):
Oh wait, I guess they were also used with electricity so C then
OpenStudy (hannaha):
but yes lol
OpenStudy (mysticfury):
telegraph - a system for transmitting messages from a distance along a wire, especially one creating signals by making and breaking an electrical connection. so i dont think its A
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OpenStudy (hannaha):
Yeah it's C. telegraphs were delivered both on foot and across a wire
OpenStudy (mysticfury):
an engine that generates motive power by the burning of gasoline, oil, or other fuel with air inside the engine, the hot gases produced being used to drive a piston or do other work as they expand. ... yep its C :D
OpenStudy (purple_pink):
it says NOT
OpenStudy (mysticfury):
generates motive power by the burning of gasoline, oil not electricity
OpenStudy (purple_pink):
so C?
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