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Just yesterday I was watching a video about machining flat surfaces, and it was mentioned that the reason why two very flat surfaces stick together isn't thorou
by Netcob 7y ago
Just yesterday I was watching a video about machining flat surfaces, and it was mentioned that the reason why two very flat surfaces stick together isn't thoroughly understood yet.
We can build things that deal with unimaginable precision, create new elements, compute with quantum effects, but we don't know why flat things stick together?
- xenocyon 7y agoTo put it simply, two clean flat surfaces stick together for the same reason each of the two objects is held together in the first place: weak and strong nuclear forces and electromagnetism. However the specifics of this might vary greatly depending on the material and other circumstances.
- Izkata 7y agoI always thought this was just air pressure, and their extreme flatness just didn't allow for air to come in between the two objects to counteract it.