For the US military came up with a method of warming hands without gloves

Engineers from the US Army Institute for the Study of Environmental Effects on Humans (USARIEM) came up with a device

for warming hands without using gloves. This is a bracelet with electrodes.

In the cold, your hands suffer the most from the cold.Gloves or mittens are not always a good way to protect against frostbite, especially when it comes to working with your hands. An alternative method of warming the extremities is to increase body temperature generally. For example, using electrodes.

For this purpose, scientists decided to create a device in the form of a bracelet that is attached to the forearm. In this case, the bracelet is connected to the battery, so you can carry it with you.

The authors of the development claim that the deviceable to warm fingers so that sleight of hand at an air temperature of 0.5 degrees Celsius is lost much less. In the future, they want to make the device easier.