Your laptop’s battery gauge says you have an hour of computing time left, but don’t count on it. The older a lithium-ion laptop battery, the less energy it can typically store – a variation that can throw off the accuracy of conventional battery gauges by more than 50 percent. This winter, Texas Instruments plans to introduce an inexpensive “gas gauge” chip that not only takes into account a battery’s original capacity but also measures its impedance – the resistance to electrical current caused by age, frequent use, and other factors. Built into the chip are mathematical models of lithium-ion chemistry that use impedance measurements to calculate how much a battery has degraded and adjust predictions of remaining charge accordingly.
A Roomba recorded a woman on the toilet. How did screenshots end up on Facebook?
Robot vacuum companies say your images are safe, but a sprawling global supply chain for data from our devices creates risk.
A startup says it’s begun releasing particles into the atmosphere, in an effort to tweak the climate
Make Sunsets is already attempting to earn revenue for geoengineering, a move likely to provoke widespread criticism.
10 Breakthrough Technologies 2023
These exclusive satellite images show that Saudi Arabia’s sci-fi megacity is well underway
Weirdly, any recent work on The Line doesn’t show up on Google Maps. But we got the images anyway.
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