Images Dated 8th July 2004

Symmetrical production of matter and antimatter

False-colour bubble chamber photograph showing thesymmetrical production of matter & antimatter. Twoinvisible gamma-ray photons enter from the top &each produce a pair of electrons (green) &positrons - or anti-electrons (red). In the upperexample, the incoming photon also displaces anatomic electron, which shoots off towards bottomleft. In the lower example, all the photon'senergy goes into the production of the electron-positron pair; being more energetic, this paircurves less in the bubble chamber's magnetic fieldthan the upper pair, which form the characteristicspiral tracks of low-energy electrons & positrons

© Lawrence Berkeley Laboratory/Science Photo Library

open-uri20120929-31173-1pdv88a

2006 F3000 International Masters Championship
Brands Hatch20th - 21st May.
Tor Graves, Luca Persiani and Marcello Puglisi lead race 2
World Copyright: Jeff Bloxham/LAT Photographic.
Ref: Digital Image Only

Apache native American Indians attacking a ranch, c.1887

Two Apache braves wearing breeches and head scaves prepare to attack a white American's ranch. This image was made at the time of the last war between the Apache native American Indians and the United States Army in Southern Arizona and Northern Sonora, Old Mexico, c.1887

© Mary Evans Picture Library 2015 - https://copyrighthub.org/s0/hub1/creation/maryevans/MaryEvansPictureID/10218524

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