Images Dated 4th May 1999
Available as Framed Prints, Photos, Wall Art and Gift Items
Choose from 10 pictures in our Images Dated 4th May 1999 collection for your Wall Art or Photo Gift. Popular choices include Framed Prints, Canvas Prints, Posters and Jigsaw Puzzles. All professionally made for quick delivery.
Abstract
Aerial
Africa
Animals
Architecture
Arts
Asia
Europe
Historic
Humour
Maps and Charts
North America
Oceania
People
Popular Themes
Posters
Religion
Science
Services
South America
Special Days
Sport
Transportation
All Images
> 1999
>> May
>>> 1 May 1999
>>> 10 May 1999
>>> 12 May 1999
>>> 13 May 1999
>>> 14 May 1999
>>> 16 May 1999
>>> 17 May 1999
>>> 18 May 1999
>>> 19 May 1999
>>> 20 May 1999
>>> 24 May 1999
>>> 25 May 1999
>>> 26 May 1999
>>> 27 May 1999
>>> 4 May 1999
>>> 5 May 1999
>>> 6 May 1999
>>> 7 May 1999
Collections

Computer art of a positron-electron collision
Positron-electron collision. Computer illustration of an electron (blue) and a positron (red) colliding. The collision produces extremely short- lived B meson and anti-B meson particles (both yellow). These particles consist of a quark and an antiquark (green and pink spheres). Collisions of positrons and electrons take place in the BaBar particle detector of the Stanford Linear Accelerator Center (SLAC), California, USA. The electrons and positrons are circulated around SLAC's PEP-II collider before being forced to collide. Differences in the rates of decay of B mesons and anti-B mesons may explain why there is more matter than antimatter in the universe
© SCIENCE PHOTO LIBRARY