Can the Large Hadron Collider be ‘world’s biggest rain meter’

The LHC is not just the world’s most powerful particle accelerator, it could also be its biggest rain meter, scientists say.

They are investigating tiny changes in the length of the collider’s 27km-circumference ring, which occur on a daily and a seasonal basis.

The short cycle is explained by normal tidal forces.

But the winter-summer pattern which affects the huge underground facility is not so obvious.

Except researchers think they can now show that winter rain and snow is gravitationally pulling on the ring.

“My hypothesis is that in winter there’s a lot more water in the ground, and even snow sitting on the ground. So, basically, this mass pulls on the ring. And when that extra mass melts away and evaporates away in summer – the ring stretches a bit,” said Rolf Hut from Delft University of Technology, Netherlands.

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Thursday, April 21st, 2016 Large Hadron Collider, LHC