Posts Tagged UAH
Our Strange Sky: Fermi Space Telescope Detects Antimatter in Earth’s Thunderstorms
Posted by mistergroonk in Alabama, Science on January 13, 2011
We won’t even attempt to translate what was read in the BBC article. Here’s a bit on the actual anti-matter find.
But within that gamma-ray data lies an even more interesting result described at the meeting by Dr McEnery and her collaborators Michael Briggs of the University of Alabama Huntsville and Joseph Dwyer of the Florida Institute of Technology.
“We expected to see TGFs; they had been seen by the GBM’s predecessor,” Dr McEnery explained.
“But what absolutely intrigues us is the discovery that TGFs produce not just gamma rays but also produce positrons, the antimatter equivalent to electrons.”
When gamma rays pass near the nuclei of atoms, they can turn their energy into two particles: an electron-positron pair.
Because electrons and positrons are charged, they align along the Earth’s magnetic field lines and can travel vast distances, gathered into tightly focused beams of matter and antimatter heading in opposite directions.
The dance of light and matter continues when positrons encounter electrons again; they recombine and produce a flash of light of a precise and characteristic colour.
The magnetic field can transport the particles vast distances before this characteristic flash, and one of the Fermi detections was from a storm that was happening completely beyond the horizon.
The results will be published in the journal Geophysical Research Letters
Informative video below.
antimatter, earth, Fermi Gamma-ray Space Telescope, Huntsville gets some props, lightning, Michael Briggs, nasa, our strange sky, people i share a state with, terrestrial gamma-ray flashes, TGFs, thunderstorms, UAH, UAHuntsville
EF-2 Tornado Skims Through Huntsville, Throws Truck into House
Posted by mistergroonk in Alabama, People I Know, Photography on January 27, 2010
If you missed it, you’re like us. Last Thursday God placed his finger down upon the Earth in Five Points, Huntsville and scratched that itch that’s been bothering him for some time now.
But seriously, folks, a fricking TORNADO skimmed through the Rocket City last week! Where were we? Safe and snug at home. Where was our friend Duncan? Smack dab in the middle of Dangerville. We can’t help but to be a little jealous. Everything happens to Duncan. Sadly he did not photograph what could have been his last night on this Earth. happily he, and the others with him, are very much okay. Far as we can tell, all our local friends survived the twister.
The Flickr pool Alabama Thunderstorms has a wealth of awesome shots of last week’s storm. Flickr user Tyler P. has the best so far.
There’s a whole mess of pictures and video on Al.com: Huntsville tornado: Photos, videos and damage reports
UAH weather scientists want your pictures of the storm. They hope the data will help to better predict future tornadoes:
Anyone with pictures of the tornado, storm cloud, hail or other byproducts of the storm, or with questions, should e-mail them to: pictures@nsstc.uah.edu
Researchers must know as precisely as possible where the photographer was when taking the picture – not just a street address, but whether it was in a front yard, back yard, from a garage or wherever – and what direction the camera was facing. They must also know the time the picture was taken and the photographer’s name and contact information.
They also request that only one or two photos be sent at a time to avoid overloading the computer servers.
5 points, EF-2, how's the weather, People I Know, people i share a state with, rocket city, tornado, UAH
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