3 ms·

Carbon ceramic brake discs from supercars will likely to survive a few billion years.

• andrewinardeer 3y ago
  Surely plate tectonics after a few billion years would move these disc brakes down into the Earth's mantle and melt them?
  • thfuran 3y ago
    That depends where you leave them.
  • nemo 3y ago
    We have fossils that are > 3 billion years old. While subduction does steadily erase the past, not everything subducts. See: https://en.wikipedia.org/wiki/Craton https://en.wikipedia.org/wiki/Craton