That could be something like 17 000 cm³ of water from 50 000 cm³ of aerogel. Its typical density is so low that weighing it barely makes sense; some types are e

That could be something like 17 000 cm³ of water from 50 000 cm³ of aerogel. Its typical density is so low that weighing it barely makes sense; some types are even lighter than air.