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.

In ref. 4, it was shown that the Fraunhofer diffraction pattern from an isolated non-periodic object was sufficient to fully reconstruct the diffracting object. Methods, based on modifications 5 of ...

The origin of the idea of moving objects by acoustic vibration can be traced back to 1787, when Ernst Chladni reported the first detailed studies on the aggregation of sand onto nodal lines of a ...