The green dot on Android phones signals when an app is using the camera or microphone, helping users monitor privacy and spot ...

Light can be sculpted into countless shapes. Yet building optical devices that can simultaneously manipulate many different ...

Researchers in Sweden have unveiled a way to create high-performance electronic electrodes using nothing more than visible light and specially designed water-soluble monomers. This gentle, ...

Photoplethysmography (PPG) is an optical sensing technique that measures blood volume changes and underpins devices ranging from hospital-grade pulse oximeters to consumer wearables that track heart ...

Presence/motion sensors are one of the best ways to make automations feel more natural, but most of them run on batteries and eventually have to be swapped. That’s one of the main reasons I really ...

A new Android malware family, Herodotus, uses random delay injection in its input routines to mimic human behavior on mobile devices and evade timing-based detection by security software. Herodotus, ...

Scientists have developed a fully transparent skin sensor that accurately measures UV radiation, detecting light and converting it to electrical signals. So when the Sun's rays reach damaging levels, ...

Samsung’s new ISOCELL HP5 200MP sensor is being rapidly adopted by manufacturers like Oppo and Realme. Its compact design and 0.5µm pixels make it ideal for telephoto systems, enabling up to 6x ...

When you're boarding a plane or going somewhere where your phone's wireless signals need to be completely disabled, there's a single toggle to make this faster and easier — airplane mode. It turns off ...

What just happened? Researchers at University College London have developed a new type of solar cell capable of efficiently generating power from indoor light, a breakthrough that could reduce ...

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