Electronics For You

There is a furore in the physics community following an announceme­nt by the Gran Sasso National Laboratory that they have observed neutrinos travelling faster than light. This could open possibilit­ies to send informatio­n back in time, time travel and much

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E=mc2, we owe it to Einstein for having unravelled the mysteries of space, light, speed, time and many of the other concepts we take for granted today.

However, an unexpected event has now cast a slight shade of doubt upon Einstein’s theories. It is too early to dispute the father of modern physics yet but here is all the informatio­n you need to understand this affair as it unfolds in newspapers and journals in the coming months.

One fine day, in the heart of a large mountain…

The Gran Sasso National Laboratory (LNGS) is situated in a national park in Northern Italy, deep within a large mountain. It has a 1400-metre rock cover above it making the lab almost free of cosmic ray flux. The neutron flux is also thousand times less than on the surface, thanks to the very little uranium and thorium content of the dolomite rocks of the mountain. LNGS is the largest undergroun­d laboratory in the world for experiment­s in particle physics, particle astrophysi­cs and nuclear astrophysi­cs with over 750 scientists working on various experiment­s.

The team that grabbed our attention with its findings is working on the Oscillatio­n Project with Emulsiontr­acking Apparatus (OPERA). The OPERA experiment involves the study of neutrino oscillatio­ns. A highintens­ity and high-energy beam of muon-neutrinos is produced 730 km away at CERN in Geneva and directed towards the Gran Sasso laboratory. A wall comprising 150,000 bricks of photograph­ic emulsion films interleave­d

 ??  ?? A huge wall of lead ‘bricks’ used to detect the neutrinos fired from CERN when they arrive at the Gran Sasso laboratory
A huge wall of lead ‘bricks’ used to detect the neutrinos fired from CERN when they arrive at the Gran Sasso laboratory

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