They worked hard, experimenting, changing, improving until they got through the duel scene twice without a flaw.

He has been charged in a lawsuit by two patients of experimenting with the ring on them without their knowledge, and concealing evidence of complications.

During this period, he experimented with different types of strings without significant result.

Newspapers have been experimenting with electronic advertising without much success since 1979.

The last time but one, you'll remember, it was experimenting with atomics inside the city limits and without license.

From 1866 through 1883, Meÿenberg experimented with preservation of milk without the use of sugar.

For nearly three years, he studied and experimented in verse without any pressure or interruption from his family.

I don't want you to start experimenting without supervision.

Public broadcasters can therefore continue experimenting with new media without any preliminary tests.

There is no evidence that scientists are experimenting with cloning humans, with or without Federal money.