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stochastic
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When you are in a closed room with other people is the heat produced simply from the the CO2 we exhale or do we radiate something from our skin? 
stochastic said:
stochastic said:
It does answer the question. For your question: no, there is no biochemical reaction causing us to radiate. We radiate (as the link describes) via the same mechanism all black bodies do.stochastic said:
Yes, that is true, but that is evaporation, not radiation. I am sure you already know, but just so that the OP is aware there are three primary mechanisms of heat transfer: conduction, convection, and radiation. Conduction is when two (usually solid) objects of different temperatures are touching and exchange heat through that contact. Convection is when heat is transferred through contact between an object and a flowing fluid. Radiation is when heat is transferred through EM radiation without any contact.DaveC426913 said:
loss of heat is from conduction, convection and vaporization, not "radiation". That word only applies to black body radiation.xez said:
I point you to http://hyperphysics.phy-astr.gsu.edu/Hbase/thermo/bodrad.html#c1 and http://en.wikipedia.org/wiki/Black_body#Radiation_emitted_by_a_human_body and you can Google many other references. Radiation is an important mechanism for heat loss from the human body.HallsofIvy said:
The mechanism of radiation is called "blackbody radiation". It has nothing to do with anything physiological like the breakdown of ATP or the electrical excitation of cardiac cells. It is purely physical, due to the thermal oscillations of charges on the molecular level. Essentially, due to thermal energy molecules are always shaking around, shaking is acceleration, molecules have charges, when charges accelerate they radiate. Try this link http://galileo.phys.virginia.edu/classes/252/black_body_radiation.htmlstochastic said:
Our body radiates heat through a process called thermal radiation. This is the transfer of heat energy from our body to the surrounding environment through electromagnetic waves. These waves can travel through air and other materials, which is why we can still feel warm even in a closed room.
Yes, the type of clothing we wear can affect our heat radiation in a closed room. Clothing acts as an insulator and can trap heat close to our body, reducing the amount of heat that is radiated. Thicker or tighter clothing can also make it more difficult for heat to escape, while looser and lighter clothing can allow for more efficient heat radiation.
The temperature of the room can greatly impact our heat radiation. In a colder room, our body will radiate more heat to try and maintain its own internal temperature. In a warmer room, our body may not need to radiate as much heat, as the surrounding environment is already providing some warmth. This can also depend on factors such as humidity and air circulation within the room.
No, it is not possible for us to completely stop radiating heat in a closed room. As long as our body is generating heat through metabolism and other bodily functions, we will continue to radiate heat. However, we can regulate the amount of heat we radiate through behaviors such as adjusting our clothing or changing the temperature of the room.
Yes, we can feel the effects of heat radiation from other people in a closed room. When someone else's body is radiating heat, it can increase the overall temperature and make us feel warmer. This is why a crowded room can often feel hotter than a room with fewer people in it. Additionally, if someone is wearing thicker or tighter clothing, this can also impact the amount of heat they radiate and influence the overall temperature of the room.