Tuesday, January 13, 2009

High-Energy Gamma-rays and Neutrinos from Extra-Galactic Sources

High-Energy Gamma-rays and Neutrinos from Extra-Galactic Sources
http://www.mpi-hd.mpg.de/icecube/HdWorkshopNo2/index2.htm

When you look up and put a hand up to shield your eyes, what do you
feel going through you?

I remember as a teenager going to a science fair where they had a
large rectangular display field with horizontal Geiger tubes that
would spark when a high energy particle from space came streaming down
through the display. A set of sparks making a line down through the
tubes and possibly going right through me.
http://en.wikipedia.org/wiki/Geiger-M%C3%BCller_tube

Didn't feel a thing but made a lasting impression on my young mind.
There are things out there shooting at me.

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