The reason that upstairs areas tend to be warmer is due to convection. Warm air rises, so unless there is some method of circulation, the upper floor (or the ceiling of a single level house) is where the warmer, less dense air will stay.
convection conduction and radiation
convection conduction radiation
theres 3 convection, radiation, and conduction
conduction, convection, radiation
Conduction.Convection.Radiation
convection conduction and radiation
convection conduction radiation
conduction, convection, radiation
theres 3 convection, radiation, and conduction
Conduction, Convection, Conduction,Convection, Conduction, Radiation
Conduction
Conduction.Convection.Radiation
convection
convection
convection
is a oven a radiation convection or conductin
Hm... maybe convection, conduction, and radiation. Conduction is transfer by touch. Convection is transfer by liquid or gas movement. Radiation is transfer by distance.