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i think that it was used to freeze helium
Smoke detectors
"It" is used to describe something undefined. In science, you may never use "it" in an experiment because when another scientists is reading the results, they will not know what is being talked about.
The zero gravity pen was originally used in space so astronauts wouldn't have to find a pen for example if the zero gravity pen floats then the astronauts would be able to see where a pen is because if the pen did not float then if one of the astronauts needed to write something down they would have to write.
Not in particular. It was manufactured by a private company based on NASA technology. Astronauts use similar materials in their sleeping bags.
Hebrew was originally used for speaking and communicating. It still is used for that.
# Who started using the @ key and what was it used for originally? # Who started using the @ key and what was it used for originally?
It was originally used to join skin after surgery.
The key was originally invented by Theodore of Samos and was originally used for securit purposes.
Sunglasses are originally used in military purposes for stop the glare when flying planes.
It was originally used for marking trees that needed to be cut down or property lines.
how many days did december used to have or originally have
The flute was originally used to practice blowing. Today, there is a "dildo" to do so, but back then they were not as advance technologically.
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For music.
pools
War