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[Gizmag] Graphene aerogel takes world’s lightest material crown - Page 3

post #21 of 24
Quote:
Originally Posted by dioxholster View Post

so what can aerogel be used for?

Uber insulation.

Very few molecules means heat cannot be transferred well. You can place a sheet of over a Bunsen burner and your hand wouldn't be burnt.
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post #22 of 24
Quote:
Originally Posted by [PWN]Schubie View Post

These materials are less dense then air.
In fact this one is less dense then helium
They claim a density of 0.16 mg/cm3
Air has a density of 1.275 mg/cm3

Well, it is less dense than air. But the fact that it is pregnable by the atmosphere means it's never gonna be floating away like a balloon.
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post #23 of 24
Quote:
Originally Posted by [PWN]Schubie View Post

These materials are less dense then air.
In fact this one is less dense then helium
They claim a density of 0.16 mg/cm3
Air has a density of 1.275 mg/cm3
If it were truly less dense than air, it would float away into the sky. The density measurement is the density in a vacuum, which doesn't account for voids that are filled with air. It's a bit deceptive. You wouldn't say that a large cardboard box box is less dense than air, despite the fact that it's total mass over total volume can be much less than the density of air.
post #24 of 24
I thought we were talking about tennis racquets at first (looking at you, Dunlop).
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