Arduino test code is run to see if the sensors are working properly, with built-in LED flashing when the sensor is triggered, and turning off when the sensor is released. The testing of the keys ...

Researchers have been developing computers that deploy light (photons) rather than electricity to power storage and calculations. These light-based computers have the potential to be more energy ...

iOS 26 is packed with major changes for the iPhone, including a new Liquid Glass design. But if you’re not a fan of the fresh design, here’s how to make iOS 26 look and feel more like iOS 18 again.

Apple users can now opt for a "Liquid Glass" makeover, at least on specific devices. Unveiled at the 2025 Worldwide Developers Conference, the "beautiful new" software design intended to "make apps ...

Lenses made with liquid crystals could lead to eyeglasses that can easily switch between correcting near- and far-sightedness. Instead of fashioning lenses just from glass, which must be made convex ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Andrea Barnes Andrea Barnes tests and writes about large cleaning appliances.

Homeland Security Secretary Kristi Noem hinted at potentially changing the liquid size requirements for carry-on luggage. The TSA is exploring new technologies and will pilot programs at select ...

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The Library Company reading room on Juniper Street in Philadelphia c. 1935, one of the group’s main locations from 1880 to 1935. The Library Company of Philadelphia Founding father Benjamin Franklin ...

1901 S. Bell Street, where a library branch was meant to be located (via Google Maps) Arlington leaders say they haven’t forgotten they owe the Crystal City area a library. “It’s on our to-do list,” ...

On New Year’s Day about 15 years ago, we spent hours looking for our cat. The fireworks had frightened the poor animal so much that it had hidden somewhere. We searched all its favorite places without ...