How do you feel colder when you go quicker ie: (running, topless car) but the temperature is the same? ;o)?

Answer 1

It's a combination of principles. To start with, when two materials of different temperatures are in contact, the heat travels to balance them out. This is one of the primary principles of thermodynamics.

When there is moving air traveling over your skin, it will cool you quicker than if it was still because as you heat some air up, it is quickly replaced by other air. This is called convection.

There is also the cooling system you use sweat for. There is always a little moisture on your skin, and as you are warm blooded, this is constantly evaporating, the moving air speeds the evaporation up. When any material changes state, ie from liquid to vapour, during evaporation, it draws latent heat from its environment. When it condenses from vapour to liquid, the latent heat is returned, this is why it hurts so much more when steam condenses on your skin, than when boiling water scalds you.

Answer 2

Our body is using sweat to control the body temperature. It also regulates the blood flow beneath the skin to regulate the heat exchange. Since evaporation is taking place the air near to our skin will be at the temperature of our body and the vapor pressure will also equal. But the wind will replace this layer of air with fresh air. So the nature will try to equalize temperature and vapor pressure. For the water to get evaporate it needs some energy. That heat energy is absorbed from our body. That's why we feel cool. If the temperature loss is too high the blood flow under the skin reduces and body will try to generate more heat by shivering & burning more calories.

Answer 3

Heat energy from the body is transfered to the air via condution. When you move quickly through a space your body is in contact with larger areas of air therfore heat tranfer is greater. Also by passing air over your skin moisture evaporates giving a "cool" feeling.

Does that help??

Answer 4

Why do fans make us cooler? The breeze that passes over our skin is cooler (Usually) than our skin. Some of the thermal energy(Heat) is transferred or conducted to the breeze, thus cooling the skin. The increase of the amount of air that passes over your skin, by driving in a convertible, will cool the skin slightly faster.

Answer 5

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Answer 6

When a liquid evaporates it cools the surface it evaporates from. So when sweat evaporates from your skin, your skin becomes cooler.

Moving air over a surface increases the rate of evaporation from that surface and therefore increases the amount of cooling.

Answer 7

Majority of heat that dissipates from the body is released from your head. If you have wind that removes the recently released heat from your body there is less heat available therefore the temperature is lowered.

Answer 8

This feeling is due to the sweat beads on ur body evaporating quicker hence the cooling your body!

Answer 9

Moving air removes heat from the skin more quickly than still air.

Answer 10

the wind when your in a car, running your sweat evaporates taking heat from your body with it.