Measuring The Speed of Electrons

There’s a neat little story on Nature News today about measuring the speed of electrons. Apparently, this group has done sensitive X-ray measurements of the movements of electrons in and around atoms. It’s pretty cool - it takes about 150 attoseconds (150 billion billion billion billion billion billionths of a second. I think.) for it to “orbit” around the nucleus, and 320 attoseconds to jump from a sulphur atom to a ruthenium (a typle of metal) surface nearby.

What I don’t completely unders more here http://logicalscience.com/2007/01/measuring-the-speed-of-electrons/

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