This is a very cool electronic project to control dc loads using a very cheap and reliable design. This video also explains ...

AC induction motors are everywhere, from ceiling fans to vehicles. They’re reliable, simple, and rugged — but there are some disadvantages. It’s difficult to control the speed ...

The U.S. government admitted the role Army pilots and air traffic controllers played in the deadly collision involving a military helicopter and a passenger jet that killed 67 people near Washington, ...

One of the perennial challenges of building robots is minimizing the size and weight of drive systems while preserving power.

California is threatening to ban sales of Tesla cars in the state for 30 days after a regulator said the term “Autopilot” for its driver assist feature constitutes false advertising. The California ...

Birth control (contraception) is any device, medicine, or medical procedure that helps prevent pregnancy. Most types of birth control are for female contraception. Hormonal methods include the pill, ...

President Donald Trump's Department of Justice has sued the District of Columbia to end a ban on assault-style weapons, including the AR-15. In a nine-page lawsuit filed on Monday, the DOJ's Civil ...

Stay informed with the very latest news in motorcycling. Our crack team of reporters cover the issues you need to know about, from new bikes to community, and the latest tech to bike crime. We apply ...

Abstract: In this paper, a state dependent switching function with limited switching frequency is applied and experimentally validated in the context of speed control of a DC motor driven by a ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Ellen Lee Ellen Lee is a writer focused on baby and kid gear. She’s texted or ...

Memory is the faculty by which the brain encodes, stores, and retrieves information. It is a record of experience that guides future action. Memory encompasses the facts and experiential details that ...

Unless you plan to lock yourself in a room for the rest of your life, it’s impossible to exist without at least some level of stress every day, even while you’re on vacation. And that’s okay. Stress ...