Post History
Let's imagine that the hottest part of the apparatus is the barrel, so to speak, which is cylindrical with length $l$, radius $r$ and temperature $T_b$. We can surround it with a fluid of temperatu...
Answer
Let's imagine that the hottest part of the apparatus is the barrel, so to speak, which is cylindrical with length $l$, radius $r$ and temperature $T_b$. We can surround it with a fluid of temperatu...