The new fabric utilizes threads kneaded with a special mineral that absorbs infrared rays. Infrared cameras rely on these rays to capture images, so if the fabric absorbs the infrared rays emitted ...

However, they have the limitation that they could only block visible light and could not block surveillance equipment or guided weapons that utilize infrared rays. The new smoke canisters are also ...

While typical saunas heat the air around you, infrared saunas use infrared rays (something the eye can’t see) to penetrate into your skin and muscles, directly heating your body. According to ...