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rwwh
Femtosecond FEL pulses are too slow for X-Ray diffraction on molecules in coulomb explosion. Electrons fly from the scene at v~c.11:44 PM Nov 5thfrom Twitterrific
One year roughly consists of pi times ten to the seventh seconds. It is surprising where pi all shows up. 8 cm is almost pi inches.12:18 AM Oct 25thfrom web
No, @bertdecker, 1 million seconds = 2 weeks, 1 billion seconds = 30 years and 1 trillion seconds = over thirty thousand years.12:15 AM Oct 25thfrom web