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Modern civilization really should thank the American inventor Thomas Edison, he made the first commercially valuable white light, brought light for human beings. However, Conrad Hubert also should get the same respect, from the Russian immigrants to the United States 100 years ago he invented the flashlight. Hubert comes home from work, a friend proudly showed him a shining flowerpot. It turns out that he installed a battery in the flowerpot and a small light bulb. An open switch, the light bulb light up flowers, all its glory. Addicted Hubert, enlightenment on the matter to him. He sometimes walk in the dark night, a foot high and low is not very convenient, it was not long ago he had to carry the heavy oil lamp to the dark basement to find things. He wants to, if can use the light portable lighting, practical and convenient, isn't it? So, Hubert put battery and bulb in a tube, the result came out the first torch.
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∙ 8y ago
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Where was the first flashlight made?
In US, first flashlight was made. Conrad Hubert (aka Akiba Horowitz) invented it in 1902.
How is a concave mirrior used in a flashlight?
it is used as the backing reflector for the bulb. because it is concave, the light that hits it is focused into a beam of light.
Where did conrad hubert invent the flashlight?
Conrad Hubert invented the flashlight in USA.
Who first invented flashlights?
100 years ago, A russian moved to US, discover flashlight, his name is Conrad Hubert.
How does a flashlight help one to see at night?
the flashlight causes objects to appear larger and easier to see.
What metal is used in flashlight photography?
aluminuim is used in flashlight photography
What is the first flashlight made of?
The first flashlight is made of flowerpot, lamp and batteries.
Which came first the battery or the flashlight?
The battery ... without that it can't be a flashlight.
How are electromagnetic waves used in a flashlight?
The light produced by a flashlight is electromagnetic radiation.
Where was the first flashlight made?
In US, first flashlight was made. Conrad Hubert (aka Akiba Horowitz) invented it in 1902.
What is the purpose of the handle of a flashlight?
The handle of a flashlight is used for holding th flashlight. You firmly grip your hand around the handle and then you can use the flashlight. to hit idiots like you
When was the first flashlight made?
roundish
What type of electrochemical cell is used as an energy source in a flashlight?
A battery is the electrochemical cell is used as an energy source in a flashlight.
How long did it take conrad hubert to invent the first flashlight?
Conrad Hubert invented the first flashlight from a shining flowerpot on 1938.
What is the weight of the first flashlight?
The first flashlight weighed more than six pounds and had a handmade battery that was half a foot long!
How did the first flashlight work?
The first flashlight reflect beam from a flowerpot is USA. bulb is in flowerpot and battery is fixed at buttom of flowerpot.
How is a failsafe flashlight used in space?
you answer it for me
