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Dorchester Center, MA 02124
Touch both objects. Same temperature, but wood feel Hot, right? Why is this? This is not the heat, but not about heat energy. When your hand touches an object, there is a mutual connection to heat conductivity. The energy is transferred to the refrigerator object from your warm hand until the same temperature is the same temperature. However, with the metal block, it takes more energy to reach the heat of your hand. Feel the refrigerator because your hand causes more energy loss.
You will see the same thing when you’re swimming. An air temperature of 75 ° F is beautiful and comfortable, but the same temperature feels really cold to enter water. This causes you to lose more heat energy and feel cold because of water more high mass and special heat capacity.
So the blanket, how do they work? A blanket is mostly insulator. This means that preventing energy transfers between objects at different temperatures. In a cold day, to turn yourself into blanket, ensure that you lose body temperature to the air around you, so you feel warm. Similarly, if you put a blanket around a cold soda on a hot day, the thermal energy will slow the transfer of soda from the air, Soda coldly longer.
So you feel hot and put it in your blanket? In this case, two things can happen at once. It can still act as a thermal insulator and slows the transfer of energy between energy and air. If the environment does not exceed 98.5 ° F, it intends to make you cooler and hotter.
But the blanket may also have a heat interaction with your body. Suppose that 98 ° F contains 80 ° F blanket in contact with 98 ° F. This will raise the temperature of the blanket while your body reduces the thermal energy. Yes, the temperature will act as a refrigerated blanket for at least a few minutes until the equating is equal.
So what makes a blanket more effective than the other? First, you should have a high mass of higher energy to warm up. Second, the blanket must have a good connection with your skin to increase heat interaction. So one of these outdoor hairy blankets will not cool you. Moreover, it is just a normal blanket.
But I am the sucker to try them, so I got a cheap “refrigerator blanket” online. (I don’t work unless someone is expensive.) I do not believe that the cooling blanket is in the sun and measuring 75 ° F temperature. Check it out. There are three blankets on my sofa. One of them is the refrigerator blanket and others are normal. There is the same picture with the infrared camera to represent different colors of different colors.