4 ms·
It's porous, so think of it as a sponge soaked with air. The sponge that one washes a car with will float on water until it is soaked with water.
by DigitalJack 14y ago
It's porous, so think of it as a sponge soaked with air.
The sponge that one washes a car with will float on water until it is soaked with water.
- PanMan 14y agoSo the sponge material itself must be heavier than water, e.g, more than 1 kg/L. Otherwise it would still float. Same holds here
- DigitalJack 14y agoWell, sure. It's made of carbon. Carbon isn't going to be lighter than anything ahead of it on the periodic table.
- tarre 14y agoAtomic mass is totally different thing than density
- deleted 14y ago[deleted]