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)
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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…… Continue reading JUNO -NASA’s mission to Jupiter launched


IAPT (Indian Association of Physics Teachers) is an association of Physics Teachers spread through out the country. It was started by Late Dr. D. P. Khandelwal in 1984 and today it has 5000 life members. All the work of this (our) organization is voluntary in character-thus NOBODY is paid any Honorarium or remuneration for ANY…… Continue reading What is IAPT? NSEP? NSEC? NSEB? NSEA? & NSEJS?