Friday 4 September 2020

material science - What keeps objects made of gold apart?



I was told the following basic facts:




  • Objects made of the same metal don’t fuse in the atmosphere because they form an oxide layer. They do fuse in space.

  • Gold doesn’t oxidize.


Yet, gold nuggets held together also don’t fuse (I can pull them apart without resistance). How does each gold atom “know” which object it belongs to?




No comments:

Post a Comment

Understanding Stagnation point in pitot fluid

What is stagnation point in fluid mechanics. At the open end of the pitot tube the velocity of the fluid becomes zero.But that should result...