OK so we're in the ATLAS main control room, this is where the experiment crew, shift crew here are sitting taking data today.

This is live data coming from the detector — collisions that are happening now.

Collisions are happening 40 million times every second.

And as the energy of the collisions increases, Andy will be able to look on smaller and smaller scales, even delving inside the so-called fundamental particles.

Fundamental particles is a myth, I think.

It looks at the moment as if quarks and electrons are point-like particles.

We can't see any size to them but that is just because we haven't been able to measure very short distances around them.

What I'd like to see is what's going on inside them.

So we're looking for the innards of the quarks by smashing them together as hard as we can.

In the search for the smallest piece of the universe, part of the problem may be knowing when to stop.