If you purchase an independently reviewed product or service through a link on our website, Rolling Stone may receive an affiliate commission. It depends where you’re wanting to use them, but, in ...

While the energy consumption could potentially be a showstopper, we’d love to see a future version that integrates a radio receiver. Then the coasters could double as pagers to let diners know their ...

Another way to be the most efficient alcoholic is ensuring that your glass is never empty, and this invention from students and a professor at the University of Munich can do so. The intelligent ...

Looking for the perfect winter desk accessory? [Wq] has created a beautiful coaster made out of PCBs that can keep your drink warm with an internal heater. (Chinese). An ESP8266 sits as the main ...