Here you see four gray tiles on your left, seven gray tiles on the right.

The thermal tiles fall off.

Puzzle game based on hexagonal tiles

Complete the puzzle by matching numbered tiles

And all the tiles match up again.

The four blue tiles on the left are gray.

Disassemble a pile of tiles by removing matching pairs

This is literally the colored sequence of those tiles.

This is our roof in New York, the roof of the studio.

The seven yellow tiles on the right are also gray.

And we like to draw these tiles as little squares.

So, these tiles would make a complicated, self assembling checkerboard.

Where do you get lumpy tiles? Well, of course, you don't.

Clear the screen by removing groups of colored and shaped tiles

The roof raised high,

The roof raised high,

And the lofty roof.

And the lofty roof.

and the roof uplifted

and the roof uplifted

By the roof elevated.

By the roof elevated.

And the elevated roof.

And the elevated roof.

And the roof exalted,

And the roof exalted,

and the uplifted roof

and the uplifted roof

Because if they put tiles on top, it's just going to crash.

All right? Whereas on the right, the two tiles look nearly the same.

We're going to turn to another technology, called algorithmic self assembly of tiles.

This is waterproofing the roof.

We've got bubbles going up there, then suds at the top with lumpy tiles.

Here is a DNA origami rectangle, and here are some tiles growing from it.

It was work actually by Lionel Penrose, father of Roger Penrose, the tiles guy.

They always make a triangular roof.

She climbed down from the roof.

My house doesn't have a roof.

He created man (Adam) from sounding clay like the clay of pottery.

He created man (Adam) from sounding clay like the clay of pottery.

It's just going up through the roof.

The roof was damaged by the storm.

I've got solar PV on my roof.

45 kilowatts of panels on the roof.

Every time it rains, the roof leaks.