The post examines reverse-phase dimming, also known as trailing-edge dimming, commonly used in modern lighting systems.

Over the weekend I finally got the time to get the wiring on my 2CV actually, fully sorted out, all the bare wire spots ...

The numbers you see on the box don't always work out in real life. LED bulbs do last longer, but those claims about five to 10 years are estimates based on internal testing -- and companies are always ...

It ‘s worth noting that back EMF plays a critical role as a natural current limiter during normal motor operation. When motor ...

Adding optical functionality to a silicon microelectronic chip is one of the most challenging problems of materials research. Silicon is an indirect-bandgap semiconductor and so is an inefficient ...

Environmental affairs minister Dion George has published new regulations for the management of mercury in South Africa, which will ban certain types of batteries, switches, fluorescent lamps, and ...

Maynard Owen Williams was National Geographic's first foreign correspondent, and in 1923 he was on hand for an event the entire world was eagerly anticipating—the opening of King Tut's burial chamber.

What do you notice about how much it costs the U.S. government to make a penny, nickel, dime and quarter? What questions does this graph raise for you? By The Learning Network Miya Lee, the editor of ...

Companies doing business with the United Nations are required to accept and comply with the UN Supplier Code of Conduct. The Code of Conduct informs Vendors of the following: - that they are excpected ...

NDLEA intercepts drug consignments hidden in frozen snails, bulbs, and clothes bound for US, UK, and DRC; arrests multiple suspects. Operatives of the National Drug Law Enforcement Agency (NDLEA) have ...