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Does a blanket keep you warm because of conduction or convection?
Wiki User
∙ 12y ago
Conduction
Wiki User
∙ 12y ago
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When huddling do penguins keep warm by radiation conduction or convection?
they insluate radiation to create baby.
Why do convection and conduction not happen in a vacuum?
All of those heat transfer methods require a medium - gas, liquid or solid. Heat is transferred from warmer molecules to adjacent cooler ones in conduction. Heat is transferred by moving gas or liquid in convection/advection. Space is essentially a vacuum. Molecules are not dense enough to transfer heat to one another, there is not a dense enough gas to convect - leaving only radiation as the heat transfer method.
Vacuum is mantained in thermos flask?
The vacuum reduce heat loss by conduction and convection.
How does a vacuum bottle keep food hot or cold?
The main idea is to reduce the heat transfer out of the vacuum bottle, or into it. A vacuum greatly reduces the transfer of heat by conduction and convection, while the mirror reduces heat transfer by radiation.
How does convection keep a house warm?
it uses its skills enit ;)
How do flasks keep drinks hot?
because conduction,convection and radiation keep the flask thermal because of what they do
What is the basic principal involved in a woolen blanket?
A woolen blanket is a good thermal insulator. Actually, air is among the very best of thermal insulator, and the wool fibre /fibreglass fibres, macerated paper, porous foam) serves to keep the air from moving and thus losing heat. Heat could be lost by radiation, conduction, and convection (a special case of conduction and convection combined.). Not of great importance in a blanket, but of importance in clothing is the fact that wool does not absorb water easily.
Is wool a good insulator of heat?
yes it is because wool has air pockets which keep in all the heat and block out the conduction of heat, convection and radiation.
When huddling do penguins keep warm by radiation conduction or convection?
they insluate radiation to create baby.
What happens to convection currents if the heat source is removed?
The convection currents will eventaully stop because there is no heat to keep them moving.
How does reflectivity of the aluminium foil influence to keep the food warm?
Heat can be transferred by 3 mechanisms: conduction, convection, and radiation. When food is covered by aluminum foil, the foil does reduce convection a bit because the air next to the food is trapped there. A bigger effect is the reflection of the heat by the foil. Rather than continuing on its path to dissipate into the surroundings, the heat is reflected by the foil back into the food, thus helping to keep it warm.
Why do convection and conduction not happen in a vacuum?
All of those heat transfer methods require a medium - gas, liquid or solid. Heat is transferred from warmer molecules to adjacent cooler ones in conduction. Heat is transferred by moving gas or liquid in convection/advection. Space is essentially a vacuum. Molecules are not dense enough to transfer heat to one another, there is not a dense enough gas to convect - leaving only radiation as the heat transfer method.
How does a blanket keep wrapped ice as ice for a long time?
I think its because of pressure on the ice
Why does a blanket keep us warm?
It helps you keep warm but not by giving you heat (thermal energy). You give the blanket heat and it helps keep your heat in. This is also true among other warm things you wear or use when you need to keep warm like coats,blankets,sweaters,etc...
What cell or structure is the blood supply here provides radiational cooling for the body?
The skin works to keep the body cool and the temperature regulated. It does this via four different mechanisms, including evaporation, convection, conduction, and radiation.
Vacuum is mantained in thermos flask?
The vacuum reduce heat loss by conduction and convection.
Why does tea stay hot in a glass teapot?
Heat can be transferred in three ways: conduction, convection, radiation. In a vacuum flask, conduction and convection are greatly reduced through a vacuum (hence the name!) between two glass layers, whereas radiation is greatly reduced by the mirror coating on the same glass. As a result, heat takes much longer to get out - or in, since you can also keep cold things in a vacuum flask.Note that no vacuum flask will keep things hot (or cold) indefinitely; it simply takes much longer for hot things to cool down, or for cold things to heat up.
