The Alhambra somehow asks all of these questions.

Symmetrical its central body mass.

So that's two.

It's s over s squared over s squared plus a squared.

So they explored a more geometric art.

You see it already.

I can't flip it because I've put a little twist on it, haven't I?

21 is the closest.

and Bob Mills put forward, 50 years ago, this generalization of Maxwell's equations, with a new symmetry.

Five symmetries and then of course the zeroth symmetry where I just pick it up and leave it where it is.

Steps toward unification exhibit the simplicity.

But it's not just scientists who are interested in symmetry.

But let's go back down to symmetries that I got for these two objects.

So why shouldn't we say they have the same symmetries?

Asymmetrical

Symmetric Point

And this enables us to distinguish why the symmetries of these objects they both have six symmetries.

What crystals are possible, we can understand through the mathematics of symmetry.

There are lots of more sophisticated examples.

Rockin' it when I be, in your vicinity

Then Einstein, with his special theory of relativity,

But they just miss.

The Rubik's Cube.

Then, using vector analysis, you use rotational symmetry, and you get this next set.

Third Male

Third Female

Third Neutral

Reflect in Point

Reflect in Line

Symmetrical encryption

Only more debts.

Galois has produced a language to say that in fact the symmetries underlying these are exactly the same.

Well, for the past few centuries

The f(x) is equal to x squared is an even function.

The swine flu virus, at the moment, is a symmetrical object.

It seems mad to talk about nothing.

But if I had to choose one building in the world to be cast out on a desert island, to live the rest of my life, being an addict of symmetry, I would probably choose the Alhambra in Granada.

And if you open your eyes again, you wouldn't know that they'd moved.

And they found that it was almost exact coincidence.

I don't always know why I take photographs of things.

Okay? So I want you to think about that problem as we go on, and count how many symmetries there are.

So it wasn't about symmetry.

Select the line to reflect in...

And simply, because the neutron's are a little heavier, there will be fewer of them in the mix, which is why there will be asymmetry between them and protons.

We don't know, but there's one theory, called lt i gt supersymmetry lt i gt , that could explain some of it.