US Army has built a device to keep your hands warm without gloves

The US Army has built a prototype device that allows wearers to go glove-free in freezing conditions. It works by heating the forearm, which helps keep the fingertips warm

Source:
https://www.newscientist.com/article/2229741-us-army-has-built-a-device-to-keep-your-hands-warm-without-gloves/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home