H/W. By what heat transfer process do cold ears lose heat in winter??

[Erebus]

And why, with a physics O level, don't I know? Is it radiation? Or convection? It isn't conduction!

[dopeysheep]

I was going to say radiation hut am rubbish at science. Someone else willbknow for sure.

[Chubfuddler]

I would have thought radiation too but I know nothing about physics. Is it even physics? That's how much I know.

[MrsMangoBiscuit]

Radiation
The transfer of energy to or from a body by means of the emission or absorption of electromagnetic radiation.

Unless it's a windy day, then you could say the heat loss is greater due to convection.

[Erebus]

Thanks very much. For some reason I'd got it into my head that radiation could only travel through a vacuum! . Of course that's wrong. Radiator, anyone? Clue's in the name, erebus! But I do recall struggling with thermal energy transfer in the second form, too! (Y8 for the 'children' amongst you .