In my last blog entry, I stated that when the LHC reaches the speed of light, time will stop. What I meant is that the time around the LHC will stop, not the entire time of the planet Earth. Dr. Eric Christian says “The standard equation for “time dilation” is that the time passing on Earth will equal the time on the object * 1/sqrt(1-((v*v)/(c*c))), where v is the velocity of the object and c is the speed of light. At v=c this goes to infinity, or in other words, time would stop for an object moving at the speed of light. This is not a problem because objects can’t go at the speed of light — it would take an infinite amount of energy (and their mass would also become infinite).” This can also relate to the twin paradox, an example of relativity at work.
In short, the atoms inside the particle accelerator will be going so fast and will be so close to the speed of light, that they will age extremely slowly because the time around them will have slowed down drastically. Only the objects going near the speed of light will experience this phenomena. Time does some strange things at high speeds which The Hafele-Keating Experiment, for example, illustrates. In 1971, J.C. Hafele and Richard E. Keating created an experiment in which they brought atomic clocks onto an airplane, which reach speeds of 600 mph or so, and placed atomic clocks on the ground as well. These men simultaneously started the clocks on the ground and the clocks on the airplane then proceeded to fly around the world twice, once going eastward and once going westward to test Einsteins theory of relativity. In conclusion, the atomic clocks on the airplane, because they were extremely fast, were actually BEHIND, or SLOWER than the atomic clocks on the ground. This proves relativity because time slowed down as the clocks went somewhat near the speed of light! Hopefully that will help one understand the magnitude of the LHC traveling up to 99.99% the speed of light!
Here is a video of Dr. Walter L Wagner discussing the potential dangers of the LHC on Earth.