The well-known phenomenon of radiation pressure demonstrates that electromagnetic waves can indeed "push" on matter.

Now, eruptions are always preceded by certain well-known phenomena.

New volcanic eruptions are always preceded by perfectly well-known phenomena.

But a well-known phenomenon in research is that scientists who make a discovery often become elated and only later begin to find shortcomings.

Temporary collective behavior is a well-known phenomenon, but little researched until now.

Apparently this is a well-known phenomenon known as "inattentional blindness."

"They stumbled onto a well-known phenomenon known as clustering," in which prices are more likely to be quoted at round numbers.

This well-known phenomenon was attributed to a decline in the male's sexual ability and motivation with age.

But another well-known phenomenon is that many Presidents and candidates for the office have lied about their health.

"It's projection on Jamie's part, a well-known psychological phenomenon," he said.