Normally if you want to join two pieces of metal together, you use
heat, or some sort of chemical process to do it. However, when metal is
in a vacuum (like in space), two different pieces of metal will weld
together with no other external force present.
It's called Cold Welding and it was discovered in the 1940s. And it might sound very impractical, but it's become extremely useful in nano-construction, tiny parts can be joined without the bulk of adhesives or melting.
Sources: http://www.omg-facts.com
http://en.wikipedia.org/wiki/Cold_welding
It's called Cold Welding and it was discovered in the 1940s. And it might sound very impractical, but it's become extremely useful in nano-construction, tiny parts can be joined without the bulk of adhesives or melting.
Sources: http://www.omg-facts.com
http://en.wikipedia.org/wiki/Cold_welding
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