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What can you put in a barrel which makes it lighter?

+2 votes
posted Feb 14, 2014 by Salil Agrawal

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2 Answers

+1 vote

You can put a "Hole" to make it lighter...

answer Feb 14, 2014 by anonymous
0 votes

fill the container with Hydrogen gas(H2)............

answer Oct 20, 2015 by Vikrant Mane