Comment on life pro tip!!
phcorcoran@lemmy.world 8 months agoPicking a higher density of the material just means the one gram would occupy less volume, it doesn’t affect how much energy that gram is equivalent to in terms of E=mc2. For that calculation, as the equation implies, only the mass matters; a gram of feathers is equivalent to the same amount of energy as a gram of lead for that equation. Now, this equation is in fact a simplified assumption; if you launch your feather at relativistic speed, then we’re talking
henfredemars@infosec.pub 8 months ago
This is true. This is why I compared them using the fixed volume of one cubic centimeter rather than using something like specific gravity. The only thing that differs is the mass.