While this general rule is known to be true for both flat and spherical objects, the force that accompanies flat objects is influenced by an additional factor. Specifically, the presence of a trapped ...

Accurately modeling irregularly-shaped particles isn’t easy, but a new study found a way to improve a century-old idea.

How gravity causes a perfectly spherical ball to roll down an inclined plane is part of the elementary school physics canon. But the world is messier than a textbook. Scientists in the Harvard John A.

Pentagon officials studying unidentified aerial phenomena are still baffled by a video of a “spherical object” flying through a Navy training range in 2021. “Is this one of the phenomena that we can’t ...