it comes into the accelerator, goes around rings, the lhc ring, and then the tunnel.this tunnel you can walk in it. i have, you go into the -- here the protons enter a collision region, and around that region, they have experiments, and when the protons collide, they go out through the experiment, and the various layers that as you go out transversely measure various aspect, and so not only is the lhc an amazing machine, but within it, there's amazing detectors. the ones i'm most interested in are known as atlas and cms, general purpose detectors with the idea if there's something new, they'll find it and know what it is. they have as much information about the particles to measure charge, and energy, and that's what the detectors do. we're excited about what's going on there, and this is the frontier energy scale. #we know about the standard model. we're trying to answer questions that go beyond this model. what are the questions? what do we think we might learn there? well, one of the things that we're pretty sure we will learn is how do particles acquire mass? fund