electrical

Photo: EDF Renewables North America Renewables provided over 22.7% of US electrical generation in 2023, according to newly released end-of-year US Energy Information Administration (EIA) data. EIA’s latest “Electric Power Monthly” (with data through December 31, 2023) reports that the combination of utility-scale and small-scale (e.g., rooftop) solar increased by 16.1% last year. Small-scale solar alone grew by 20.1% – faster than any other energy source. In December alone, small-scale…

Sallie Pero Mead was first hired at AT&T in 1915 as a “computer”—a human calculator—shortly after completing her master’s degree in mathematics at Columbia University. Before long she started working on the company’s transmission engineering team as both a mathematician and an electrical engineer. She and her team developed and tested hollow metal tubes used as waveguides: structures that confine and direct electromagnetic waves. In 1933 they discovered a new way that hyperfrequency waves could propagate down these…

Your heart’s job is to keep your pulse steady to pump blood throughout your body. Sometimes your heart rate is slower when you’re relaxing, and sometimes it’s faster when you’re exercising or stressed. If your heart’s ability to keep the beat starts to go awry, cardiac electrophysiologists like me look for outside help from an implantable device. There are two common implantable devices for the heart: artificial pacemakers and defibrillators. Artificial pacemakers keep blood and oxygen flowing during times of…

Get our free weekly email for all the latest cinematic news from our film critic Clarisse LoughreyGet our The Life Cinematic email for freeJohn Travolta has recalled the terrifying moment he thought he was going to die after the commercial jet he was piloting suffered a “total electrical failure”.The 69-year-old Grease star recounted the scary memory last week at a screening of his forthcoming short thriller The Shepherd.The movie stars Ben Radcliffe as a young fighter pilot who finds himself in peril when the plane he’s…

AirPods — Apple's truly wireless stereo (TWS) earphones — could double as a health monitoring tool in the future, according to a patent application recently published by the US Patent Office (USPTO). The Cupertino company appears to have invented an AirPods sensor mechanism that would allow the earphones to monitor electrical impulses from the wearer's brain. The patent describes a system that can monitor brain activity that is typically monitored with the use of electrodes on a patient's head but the use of AirPods could…

Venus flytraps (Dionaea muscipula) are some of the most ferocious plants on Earth. These carnivorous plants appear most fearsome in the moments before they pounce, when they are poised to ensnare their prey.Fangs agape, the Venus flytrap waits. Until an insect or spider tickles one of its sensory hairs – once, twice – then the plant strikes, snapping shut to devour the intruder.Now, the electrical signals triggering that deadly move have been mapped in Venus flytraps for the first time, by a team of researchers led…

Utility-scale solar and wind are on track to provide 25% of the US’s installed electrical generating capacity within three years, according to newly released FERC data. The Federal Energy Regulatory Commission’s (FERC) latest monthly “Energy Infrastructure Update” (with data through May 31, 2023) reports that wind now accounts for 11.63% of total installed generating capacity, and utility-scale solar provides another 6.86%. Over the next three years – by May 2026 – FERC anticipates “high…

Schneider Electric/ZDNETSchneider Electric hope its new solution will help sway doubters: "Unlike some smart panels, this allows homeowners to control only the loads they need to control with the app, making this a cost-effective solution for app-based monitoring and control of home energy usage," said Ndaw. The new Square D Control Relays snap directly onto the Square D QO Plug-on neutral breakers, and the Schneider Energy Monitor can be added at the same time. Together, this solution give homeowners the same…

To something the size of a human, static electricity is, at most, a hair-raising experience. When you're a tiny nematode, electrical fields are positively uplifting. Literally.The most famous nematode of all – Caenorhabditis elegans – has been caught using electrical fields to its advantage. The tiny worm can somehow piggyback on electrical fields to jump a surprising distance, across a petri dish, for example, or onto the back of a bumblebee for a ride to a new locale.It's not entirely clear how the nematodes do this,…

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