Cecil Adams performed informal experiments with a storm glass and found that the success of prediction was no better than random probability.

Donning lab coats, they also engage the audience in some informal experiments intended to increase the store of love in the world.

A couple of years ago, I tried an informal experiment in my mother's garden near the New Jersey shore.

This surely is based on observation, experience, and informal experiment, not on intellectual perception of any connection between ideas.

As part of his research for the campaign, Dave Reger, a Leo Burnett executive creative director, conducted an informal experiment at the agency.

Penn and Teller often conduct informal experiments.

But even during these informal experiments on the effects of ethanol consumption on cognition, some real science was being discussed.

As an example, he described an informal experiment at his own institution, which conducts extensive environmental education programs for school children and adults.

According to one informal experiment, the answer is no.