A laser physicist and father of two girls.
September 6th, 2011 § 3
When the ESO people were testing their 20 W yellow guide star laser at Wendelstein Observatory, an intense summer thunderstorm approached.
ESO issued a webcast for this: How To Stop a Star’s Twinkle
« Older Entries
You are currently browsing the Misc category at
© Yan Feng, powered by WordPress