Pop Rocks - Dr. Ebels farbkodierte Karten der chemischen Elemente in Meteoriten

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Pop Rocks - Dr. Ebels farbkodierte Karten der chemischen Elemente in Meteoriten

http://www.amnh.bz/news/2012/01/lab-confidential-pop-rocks/#more-6022

Die Diashow mit zusätzlichen Informationen:

http://www.flickr.com/photos/amnh/sets/72157628941411075/

http://www.flickr.com/photos/amnh/6726286711/in/set-72157628941411075/lightbox/

To the average person, meteorites look like black, occasionally brown, lumps of rock from space. But Denton Ebel’s new computer program transforms them into a kaleidoscope of colors that holds clues to the early solar system.

Dr. Ebel, curator in the Department of Earth and Planetary Sciences, uses an electron microprobe—what he calls “the workhorse” of the meteorite lab—to send a beam of electrons across a specimen. Spectrometers built into the machine measure the x-rays emitted by each excited element, and then the computer program, written by Ebel, generates a color-coded map of each element in the meteorite.

 

Martin