In article .com
wrote:

Rob Morley wrote:

In article .com
wrote:
Have we been lied to all these years?

Assuming that mummy bear just made the one pot of porridge, that the
three bowls were the same shape and made of the same material and the
ambient temerature was the same throughout the room. Daddy bear's bowl
is larger tham mummy bear's and baby bear's is the smalleset, whose
porridge should cool the fastest?


You need to be more specific about the bowls.

All made from the same type of china, and the same shape (a bit like
the bottom third of our planet only hollow. one 4" dia one 5" one 6".

Is the thickness proportional to the diameter, or the same in all three?