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When samples of rubber first arrived in England, it was observed by Joseph Priestley, in 1770, that a piece of the material was good for rubbing out pencil marks, hence the name rubber.
Negative
heaven's little master piece
A piece of tape on a rubber balloon acts as a reinforcement so the rubber does not rip when poked by a needle in the tape.
compressed spring
there are different terminologies in different countries. in most Asian countries they are called Bushes....and in most western countries they are just called Rubber Supports........!
96 g
The Insulators in a torch is the rubber. I think.
A piece of chalk.
flexibly
A little piece of Scotland.
rubber