Question

Why our eyes can detect heat but not cool?

Answer 1

Explanation:

The heat that we feel from sunlight, a fire, a radiator or a warm sidewalk is infrared. Although our eyes cannot see it, the nerves in our skin can feel it as heat. The temperature-sensitive nerve endings in your skin can detect the difference between your inside body temperature and your outside skin temperature.

Answer 2

Answer:

Answer in explanation

Explanation:

Human eyes can detect light at wavelengths in the visual spectrum; other wavelengths, such as infrared and ultraviolet, are supposed to be invisible, but an international group of scientists from Poland, Switzerland, Norway and the United States, has found that under certain conditions, it's possible for humans to see .