The air conditioner doesn't work.

The air conditioner has got out of order.

Without an air conditioner, people nowadays cannot live.

I want a compact car with an air conditioner.

Don't you think the air conditioner is turned up too high in here?

Something's wrong with the air conditioner smell of burning V belts in the air.

On a hot summer day, the air conditioner works all day to keep us cool.

It was usually too hot, too stuffy or just too smelly, and my father would not let us use the air conditioner.

Then if you look around you in the bathroom, you see lots more products like shampoo, conditioner, anti wrinkle cream, body lotion, but also toothpaste.

And so I stood up in front of 200 very angry, very disappointed people on a summer night, and the air conditioner had broken and it was 100 degrees outside, and I started showing these pictures.

And I'm sure there are people here who probably know better than I do about efficiencies, but I can't imagine that every apartment having its own air conditioner is a very efficient way to cool a building on this scale.

And one of the things in this picture that I wanted to point out is that when I saw these kinds of buildings, I was shocked to see that they're not using a central air conditioning system every window has an air conditioner in it.

The fact that so much innovation is given away for free does not only create a measurement problem for economists it is also a real problem for those trying to find investment opportunities. In the good old days of the post World War II boom, if you wanted an air conditioner, a car, or a newspaper, you had to buy one, making it possible for producers to earn money by providing them.