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Subject:
Re: PF100s Three Years Later
From:
Aaron Morris <[log in to unmask]>
Reply To:
Informed Discussion of Beekeeping Issues and Bee Biology <[log in to unmask]>
Date:
Mon, 22 Jul 2013 14:40:35 -0400
Content-Type:
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On Mon, Jul 22, 2013 at 1:49 PM, Mike S asked:

> Does it take more energy for the hive to cover and protect 20 sq cm of
> 5.25 cells than 20sq cm of 5.35 cells?
>

Basic physics: ÄH=MS ÄT
Change in heat equals Mass times Specific Heat times Change in
temperature.

Call "20 sq cm of 5.25" Case A and "25 sq cm of 5.35" Case B.  The question
then becomes, Which is greater, ÄH=MAS ÄT or ÄH=MBS ÄT ?  T and S in this
problem are constant in both cases, so the question boils down to which has
more mass,, Case A or Case B?  Obviously a tighter, more condensed pattern
(Case A) has more mass than the more spacious configuration (Case B).  So
the answer to Mike's question is, Yes.

Aaron Morris - thinking physics rules!

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