The birth control pill was created in 1960 as a way for women to control their menstrual cycle, help alleviate hormonal imbalance symptoms and, of course, to prevent pregnancy. These small pills, ...

PMSM is typically used as a control motor. The current in the PMSM contains harmonics because the inverter voltage is not sinusoidal, and as a result, losses occur. These losses have a negative effect ...

Abstract: Wire retention force is an important indicator for evaluating the reliability of wire insertion in electrical connectors. Current approaches to measure this force are mainly relied on spring ...

April Wilkerson teaches the basics of electrical wiring for DIY projects, giving you the skills to tackle home electrical work. Watch quick-thinking elephant rescue drowning gazelle with its trunk ...