Question

Which type of wall would make the best soundproofing for room?
1.0 centimeter thick glass
two layers of 0.5 centimeter thick glass with 0.5 centimeters of air between them
two layers of 0.5 centimeter thick glass with 0.3 centimeters of vacuum between them
1.0 centimeter thick steel

Answer 1

im sorry but i think you should post this up in the science section :/

Answer 2

i didn't know there was a science section

Answer 3

lol im srry im not sure either