All science involves isolating variables and is challenging in terms of trying to apply limited experiments to a complex universe.

The limited experiment was widely thought to have been successful.

More worrisome is the possibility that this limited experiment will be viewed as the solution to the problems of our public school system.

He has supported limited experiments with school vouchers.

The new evidence came from a limited experiment in a small number of monkeys.

A limited three-year experiment with courtroom photography in civil cases will expire, the judges said.

The rapidly growing company began charging publishers modest fees last summer in a limited experiment.

In our limited experiment," the doctor said, "the telepaths became extremely weak.

Before there were nests, baby organisms could carry out only very limited experiments in behaviour.

Bradley says he supports limited experiments with vouchers, but in general opposes them.