Are electrons green?

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I recollect examining a student who had done some work using single-particle electron microscopy. It was painfully clear after a few minutes into the oral that the student hadn't a clue what his project was about. As a chance to redeem himself I asked him to tell me what he did know about electron microscopy. After thinking for a while he blurted "electrons are green"! Sadly he wasn't the only student with such brilliant insights...

My mission

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I would like to improve and extend the electron microscopy related material available on Wikipedia, and to spread and popularize the results of biological electron microscopy.