The test was the most costly and complex experiment yet for the "Star Wars" program.

The Russian nation made one costly experiment.

A lot of damned fools would try a lot of very costly experiments.

So the media companies on the Web are nearly all struggling to find a formula for transforming costly experiments into money-making businesses.

An unmanned Delta rocket fired a three-ton military satellite into space as part of the most costly experiment yet in the antimissile program.

A wrong and costly experiment, I am afraid.

To lick the problem, he advises what might be a long, painful and costly experiment.

The White House has relegated its costly experiments in social engineering to Iraq.

When based on accurate mental models, thought experiments can replace more costly (or even deadly) physical experiments - a development evolution has favored.

This ensures that you do not lose observations made during a costly experiment.