During experiments with the moonlight I came to the conclusion that the Moon probably cooled, and the cooling medium was infrared radiation. I have bought a thermographic camera lately. I began to check if the infrared rays of cold objects can be reflected from surfaces of metals, wood, plastic, glass and mirror. It turned out that these electromagnetic wavelengths reflect very poorly from the mirror, but good from metals, e.g. aluminum. An infrared camera reacts to infrared radiation, but does the thermometer also? I froze the water in a half-liter metal cup and started experiments shown in pictures below. I set the cup with ice on three boxes of cassette tapes so that the cup would not have direct contact with the floor and would not cool it directly, and also that the infrared radiation would better reflect from the steel bowl covered by a chrome layer placed behind the cup. Thermometer - DT - 11 produced by Termoprodukt company, measuring the temperature to five hundredth degrees, I also placed at a certain height for two reasons. The first one: to limit contact of the thermometer with the the cold air cooled by the cup with ice which spread over the floor. The second reason: to set the tip of the thermometer more or less in the focus of reflected rays from the second bowl. After several minutes the temperature stabilized at 23.72°C.
Then I separated the cup with ice from the thermometer with a cardboard box and removed the bowl behind the cup, which is shown in the picture below. After a few minutes temperature rose to 23.83°C.
Next I uncovered the cup with ice and behind it I set a steel bowl. The temperature started to drop again. After a few minutes it decreased to 23.79°C, which you can see in the pictures below. Seeing that the temperature was falling down, I finished the experiment.
The result of the above experiment suggests that infrared radiation does not only heat objects, but also can cool them.