A film of that work gives a rare look back at their early experiments.

Some of his early experiments made images, but they faded very fast.

On the basis of early human experiments, they consider it ineffective.

These early experiments in films were only a partial success.

Those early experiments by people like Handel didn't really work.

Its early experiments were based on bread, milk and wine.

He said he got similar results in an earlier experiment.

These early experiments clearly proved that such a practice was too hazardous to continue.

"He was just an early experiment in getting computers to respond to voice signals."

As such, it was an early experiment on the road to manned flight.