This is the idea that a patentshould be given to a machine or something that creates a material change, like a chemical process.

VOA: special.2010.07.16

Another possible reason for more injuries is a change in the traditional idea of physical education.

VOA: special.2009.08.06

But in nineteen thirty-four, she saw something that would change her idea of the world.

VOA: special.2009.05.10

Hubble's discovery meant a major change in our idea of the universe.

VOA: special.2009.04.29

The idea that species change was not new even in Darwin's time.

VOA: special.2009.12.01

"I think it is a good idea if he can change the minds of all American people who think that Muslims are criminals.

VOA: standard.2009.06.04