Where are you calling from? <a href=" http://acsh.org/where-to-buy-permethrin-spray.pdf ">where to buy permethrin cream</a> Particle accelerators do exactly what they say on the tin – they move different kinds of subatomic particles very, very quickly. And while we normally think of particle accelerators in the area of high-energy physics, like the Large Hadron Collider. But they’re also used in a number of practical applications, such as generating X-rays at your Doctor’s office. And your old-school CRT monitor or TV was, technically, a particle accelerator.