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" "In answer to some of the questions that we had a few years ago when the Large Hadron Collider started up... "Could it destroy the world?" ...The most convincing answer to me as to why it couldn't, is because we have particles in outer space from cosmic rays and things like that, at much much higher energies than we could ever dream of creating in the lab. And so far they haven't done anything catastrophic to us and we're perfectly fine. So in terms of just reaching a higher and higher energy... it doesn't really matter what we do in the lab. We should be safe on earth from these high energy particles.
Suzanne Lyn Sheehy (born 1984) is an Australian accelerator physicist who runs research groups at the University of Oxford and the , where she is developing new s for applications in medicine.
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[I]nside the atom there are only... three different types of particles, which are the up and s, they're the constituents of s and s inside the atom, and the electron. Everything else there plays very little role in our day-to-day lives. But over about the last century we've discovered that all of these particles fit together in a neat theory that describes our universe to something like 9 or 10 decimal places. It is an incredible amount of discovery and work that's gone into it, and I cannot do it justice in... two minutes. But the latest piece that we've discovered using the Large Hadron Collider, and one of the reasons, but not the only reason that it was built, was to discover... the Higgs boson.
Well they quickly realized that this was crazy, and that they were never going to be able to actually make a weapon out of one of these machines. Mostly for the reasons that I explained before. Even if you had the Large Hadron Collider in space, I have no idea how you'd get it up there, but even if you did, it would... be difficult to do damage with it. Mostly because beams would just go through things and out the other side.
They developed this machine which was only about this big [~1 meter] and they used ultra-lightweight materials, and it only weighed about 50 kg. So compare that with a 27 kilometer long ring. ...It was only low energy but they... sent it up in a rocket and they actually tested it in space and brought it back down... and they tested it again on earth, and it still worked, which I think is an incredible feat of engineering... [P]eople really haven't heard of this experiment... It's called the BEAR (Beam Experiments Aboard a Rocket) project in 1989, and I have a contact who worked on it...