RT @noclador: The Crimean railway "bridge" is mostly steel. Steel retains 50% of its strength at 600°C, at 1,200°C steel loses all its sta… 0 atbildes
 |
bRRR (2022-10-08 20:20:05) |
RT @noclador: The Crimean railway "bridge" is mostly steel. Steel retains 50% of its strength at 600°C, at 1,200°C steel loses all its sta… | |