Device generates light from the cold night sky

[ad_1] In this photograph, the thermoelectric generator harnesses temperature differences to produce renewable electricity without active heat input. Here it is generating light. Credit: Aaswath Raman An inexpensive thermoelectric device harnesses the cold of space without active heat input, generating electricity that powers an LED at night, researchers report September 12 in the journal Joule. […]

Roku's new $179 soundbar doubles as a streaming device, works with most TVs

[ad_1] Roku’s new Wireless Soundbar and Wireless Subwoofer. Valentina Palladino The soundbar includes the technology of a Roku Ultra inside, so it doubles as a streaming device. Valentina Palladino The soundbar works with any TV that has an HDMI ARC port or an optical audio port. Valentina Palladino The new subwoofer connects to the soundbar […]

Novel device to improve powder flow

[ad_1] A new device created at Purdue University is designed to protect the integrity of drug and food products, while improving the consistency in flow. Credit: Purdue University Anyone who has tried to pour powdered sugar into a jar knows that sometimes beating the sides of the container or package is the only way to […]

Sorry, readers. Your Bluetooth device is a security risk

[ad_1] Credit: CC0 Public Domain We hate to be the purveyor of bad news, but if you’re using Bluetooth with your digital devices—and you know you are—you could be vulnerable to security risks. That means anyone with a Ring video doorbell, smart lighting setup, AirDrop on an iPhone, portable speaker, headset and on and on […]

A wearable device so thin and soft you won't even notice it

[ad_1] Researchers reported the discovery of a multifunctional ultra-thin wearable electronic device that is imperceptible to the wearer. It also can be used as a robotic skin. Credit: University of Houston Wearable human-machine interfaces—devices that can collect and store important health information about the wearer, among other uses—have benefited from advances in electronics, materials and […]

An implantable device that produces energy using ultrasound

[ad_1] Ultrasound transmitted to VI-TEG device in water. Credit: Sang-Woo Kim A team of researchers affiliated with several institutions in the Republic of Korea has developed a type of implantable device that produces energy using an external ultrasound source. In their paper published in the journal Science, the group describes their device, how it was […]

Sumitomo focuses on power-generating device installed in tire

[ad_1] Credit: Kansai University Tires that recover energy as they roll made numerous headlines this week as tech watchers explored Sumitomo’s concept. TU-Automotive was among numerous sites reporting on the concept: “Engineers for Japanese tire giant, Sumitomo Rubber Industries, have teamed up with Professor Hiroshi Tani of Kansai University, to develop a system that claims […]