Posted by aywitb on January 23, 2015, 7:34 pm
If these 2 rooms had exactly the same furniture in them and both faced the
sun exactly the same but one room had all black furniture and flooring and
one had all white furniture and flooring would the temperatures be the same
in them during the day in full sun? The amount of sunlight hitting them is
the same so they should be the same temp, right?
Posted by Morris Dovey on January 23, 2015, 11:13 pm
On 1/23/15 1:34 PM, email@example.com wrote:
One room would have slightly higher air temperature, the other slightly
higher furniture/floor temperature.
You might /feel/ slightly warmer in the room with white furniture and
But it might be difficult to distinguish. :-)
Posted by Morris Dovey on January 24, 2015, 3:59 am
On 1/23/15 6:17 PM, Bob F wrote:
Windows? Methinks we were both making unstated (unwarranted)
assumptions. My bad.
My real-life "windows" were thermal diodes. :-)
BTW, it does appear possible to construct a closed system such that, at
equilibrium, one object within can be warmer than another. Fascinating
Posted by Dan Coby on January 24, 2015, 8:14 am
On 1/23/2015 7:59 PM, Morris Dovey wrote:>
> BTW, it does appear possible to construct a closed system such that, at
> equilibrium, one object within can be warmer than another. Fascinating
I will bite. How does one create a closed system in thermal equilibrium
with objects at different temperatures?
Are you calling a system with an outside source (sunlight) coming into
it and heat radiating out, a 'closed' system?
Posted by Morris Dovey on January 24, 2015, 8:58 am
On 1/24/15 2:14 AM, Dan Coby wrote:
By creating an object that more readily absorbs energy than emits it. I
ran across some interesting projects while researching absorber
geometries, but didn’t bookmark because the material didn’t relate in a
practical way to what I was doing.
Nope. I just thought Bob might find the idea interesting.