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As more and more electric vehicles penetrate the market, there’s going to have to be a proportional rise in the number of charging stations that are built into parking garages, apartment complexes, and even private homes. And the more that happens, the more chargers we’re going to start seeing where security is at best an afterthought in their design. But as this EV charger teardown and reverse engineering shows, it doesn’t necessarily have to be that way. The charger is a Zaptec Pro station that can do up to 22 kW, and the analysis was done by [Harrison Sand] and...

By Rachel Cramer-Iowa State Carpenter, a professor of psychology at Iowa State University, is the lead author of a paper in Nature Reviews Psychology that examined more than 100 years of research on learning. “The benefits of spacing and retrieval practice have been confirmed over and over in studies in labs, classrooms, workplaces, but the reason why we’re showcasing this research is because these two techniques haven’t fully caught on. If they were utilized all the time, we’d see drastic increases in learning,” says Carpenter. In the paper, Carpenter and her coauthors describe spacing as a strategy to learn in small doses...

Why the PBP? Lately I've been thinking a lot about power consumption when it comes to computing. Intuitively, I know that arm devices pull significantly less power than amd64 machines but I've never really tested this in the real world. So, some preliminary power consumption stats: big amd64 laptops (thinkpad x220 and t490) pull at most 65 watts small arm SOCs typically pull at most 15 watts most android phones pull at most 18 watts Pentium 4 pulls at most 250 watts These numbers are fairly easy to find: just look at the power supply for a MAXIMUM OUTPUT value...

Whenever Shirley Hazzard was asked about the definitive moments of her life, she spoke of going to Italy: “From the first day, everything changed. I was restored to life and power and thought.” Being in Italy returned her to a prior and loftier order of being, anterior to Australia and her unhappy family; with it “a whole part of my life that had been suppressed came back.” The significance was clear even at the time. 22 December 1956 Saturday, Naples I am in Italy. It is simply that one Friday, three weeks ago, I walked into Max Doerner’s office and...

If it's been a while since you've bought portable flash memory, you might be surprised by the broad availability and affordability of high-speed and large capacity microSD and SD cards. In this guide, we break down what all the different codes and ratings mean, and offer the best choices for...