CERN Large Hadron Collider

Why is the Large Hadron Collider as large as it is?  I heard today that the actual accelerator portion is only 40 Meters long, the rest is (mostly) magnets that steer the particles, so why does the accelerator need to be 17 miles in circumference?  Does making it larger provide any advantages?   (asked Rick) Incoming search terms:cerncern [...]

JUNO -NASA’s mission to Jupiter launched

NASA launched JUNO as part of its Jupiter mission.

Juno will study Jupiter’s composition, gravity and magnetic fields as well as attempt to answer how the planet formed and whether it has a rocky core. The $1.1bn Juno probe was launched today from Cape Canaveral, Florida, at 12.25 p.m. local time and will now begin a five-year journey to the planet. Juno, named after the wife of the Roman god Jupiter, is the second probe to orbit Jupiter. Find more details here  http://www.nasa.gov/mission_pages/juno/news/juno20110805.html http://www.nasa.gov/mission_pages/juno/main/index.html

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