Researchers have clarified the mechanisms by which energy loss is locally maximized at a certain rotational speed in ...

In designing a simple spectroscopy setup, we needed to synchronize the speed of a small, inexpensive dc motor precisely to 6000 rpm (100 Hz). Our first idea was to take a phase-frequency detector type ...

For many runners, the dog days of summer mean base building for a fall marathon. Improving your aerobic system with a big base is critical to running a fast marathon. But what about all those fun and ...