Condensed-matter physics is the study of substances in their solid state. This includes the investigation of both crystalline solids in which the atoms are positioned on a repeating three-dimensional ...

Scientists assumed that energy flows in only one direction in a turbulent system. What they didn’t know, until they looked closely at brine shrimp, was that a simple factor can reverse the flow.

Motion detection is the ability of the visual system to detect motion in the visual field. Motion detection in its simplest form takes place in the retina, but more complex processes related to ...

The Beatles have the most No. 1 hits among all acts in the chart's history, with 20. By Xander Zellner More than 32,000 songs have appeared on the Billboard Hot 100 in the chart’s history. Of those, 1 ...

AP-42 1.1 Final Section - Supplement E, September 1998 (pdf) (281.18 KB) AP-42 1.1 Background Document (pdf) (1.04 MB) ...

About Harmonic Drive Systems Inc. Harmonic Drive Systems, Inc. engages in the manufacture and sale of mechatronics products and speed reducers. Its brands include HarmonicDrive, AccuDrive, and ...