Atheists who love Science!

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A group for science enthusiasts of all types -- professionals, amateurs, students, anybody who loves science.

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  • Dallas the Phallus

    Any physics people here? I posted something ages ago and I can't remember the name of the principle or law or whatever you call it. 

    The principle was that when two object come in contact with one another they cannot separate without leaving something of themselves behind. So when your oily hand touches a dirty surface, your hand leaves behind oil and skin cells but it has also picked up dirt from the surface. 

    It was named after the man who defined it. 

    Can anyone here help me with this? What is it called?

    Mar 7

  • RockyTIJ

    http://en.wikipedia.org/wiki/Locard%27s_exchange_principle

    Mar 7

  • Dallas the Phallus

    Thanks Rocky, that is it.

    Mar 8