The Powder Toy

Black Body radiation

  • Rconover     23rd Jul 2010 Member 0 Permalink
    can we have things that are SO hot that they emit Heat radiation, even though they are not touching, the heat radiation should apply to other things within the vicinity that are not touching

    this can be another form of heat.

    the surrounding air can be cool but the heat radiant can radiate from a source and into something, causing it to gain heat

    this concept applies to your Microwave: Ever wonder why your food gets SO hot yet the air doesn't feel like it is any hotter than before? where the Microwaves are emitted and they hit your solid.
  • plypencil     23rd Jul 2010 Member 0 Permalink
    Unfortunately the way the engine works this is not possible.

    Although, you could have an element give off another element called heat which is very hot, like the neutrons from a plutonium reaction?
  • ssc4k     23rd Jul 2010 Member 0 Permalink
    If I understood the code enough I would say it would be possible to add another layer (like air) but have it hold radiation values instead of air values.

    Easy to say, hard to implement .
  • Rconover     23rd Jul 2010 Member 0 Permalink
    wait a sec, it can be just like the Pressure system where the blue and red stuff that flys over the field.

    this can be implemented along side of pressure, the exact same way, it can demonstrate the same way WHOL emits pressure
  • erwins_cat     23rd Jul 2010 Member 0 Permalink
    Rconover:
    this principal applies to your Microwave: Ever wonder why your food gets SO hot yet the air doesn't feel like it is any hotter than before? Black Body radiation, where the Microwaves are emitted and they hit your solid.

    black body radiation in my microwave ... wat? ... my physicist heart is raging
    a microwave oven uses dielectric heating - totally different story. this only works on polar molecules like water. put some non-polar (like oxygen, nitrogen, most fats, anything else with long -CH2- chains, etc) stuff in your microwave and try it - it heats up only a little compared to water.
    anyway, black body radiation is interessting, but apparently to hard to implement and to balance. the radiated power per unit area is proportional to T^4. so actually you have to determine the surface of your object, which isn't that easy.
  • Rconover     23rd Jul 2010 Member 0 Permalink
    erwins_cat
    oh you understand what I was implying.

    black body radiation is when you feel heat from something yet the surrounding air is cool

    its the same concept with your microwave, your food gets hot when the air in the microwave is still cool.

    and yes I know the microwaves only apply to the polar molecules like water.

    its the concept, not the details inbetween
  • erwins_cat     23rd Jul 2010 Member 0 Permalink
    however, this doesn't correct your first post
    Rconover:
    Black Body radiation, where the Microwaves are emitted and they hit your solid.

    as a matter of fact, your microwave is not driven by black body radiation to heat your stuff. and black body radiation is not the same concept as dielectrc heating
  • Rconover     23rd Jul 2010 Member 0 Permalink
    erwins_cat
    OHmaGAWD

    thats not what I was implying!!! :P

    being that black body radiation in that a very hot object does not have to be touching another to transfer heat.!!!

    ok here, A camp Fire, the surrounding air may be cool, but you feel the emanating heat from the fire

    or like being near hot lava or hot metal
  • wouter215     23rd Jul 2010 Member 0 Permalink
    Rconover
    basically infrared photons then.
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