It has also been produced artificially, and is often known as green gold.

That we will pay the usual high prices for artificially produced music?

And apart from a few more artificially produced elements that it might just be possible to make in future, today's list is almost certainly complete.

In the future, technology may be used by humans to artificially produce an Earth analog.

It is found in many mineral springs and also produced artificially,.

This was the first successful treatment of humans with an artificially produced radioactive material.

It was not until the 1990s that materials and computing power became available to artificially produce the necessary structures.

Even at this distance the artificially produced gravitation was still effective.

Prostaglandins are also artificially produced and used for medical reasons, such as starting labor.

Unnecessary and, especially, artificially produced desires were to be suppressed.