This is the world of quantum mechanics, which is what I do for a living.
It's in quantum theory that we hope to find the answers
that Einstein searched for his dying day to understand how gravity behaved at the very beginning of time.
If we can figure out how gravity works at the level of the smallest sub-atomic particles,
then maybe we can finish what Newton and Einstein started,
and form a complete picture of this mysterious force of gravity.
To achieve this goal, we have to try to recreate the conditions of the Big Bang here on Earth,
and peer deep into the heart of the sub-atomic world.
'This place is Fermilab, and I used to work here.
It's home to the Tevatron particle accelerator.
The Tevatron basically works by bashing stuff together,
and seeing what comes out.
What we do is we take protons, and we accelerate them around that way,
and anti-matter protons, send them around that way,
and they pass by here 50,000 times a second, very close to the speed of light,
and then we collide them together, we smash them together.
It's though collisions like these that the nature of matter has been revealed.
But the force of gravity still sits outside what we know.