Berkeley CSUA MOTD:Entry 14610
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2025/05/25 [General] UID:1000 Activity:popular
5/25    

1998/9/16 [Politics/Domestic/911, Science/Space, Science/GlobalWarming] UID:14610 Activity:kinda low
9/15    What consumes more power, an empty refrigerator or
        a full refrigerator?
        \_ on startup from an unpowered condition, the full one does
           because you need to cool down a larger amount of stuff
           (most solids/liquids have a higher spec.heat than air)
           but say you have everything cooled down, a sort of steady
           state and you pull the power, then the full fridge will
           stay cooler longer due to the higher "heat mass"  One could
           similarly say that the full fridge requires less energy per
           unit time to maintain a low temperature as all the frozen
           veggies and meat and other things with high water content
           maintain their temperature much better than air.  Of course,
           if you dont plug either fridge in at all, then its a tie,
           though in a strict sense the full one will absorb more heat
           but will give up less heat given a rise or drop in temp. --jon
                \-well there is also the pathological case of say rotting/
                fermeting food which is exothermic. --psb
                \_ is hell exothermic or endothermic? - tpc
                   \_ ~dpc/forwards/hell
                      \_ amusing. But the cited professor was most definately
                         not the original one, as I heard the "final exam"
                         version of this, some time in 1995 or before.
                         (different response cited, though)
        \_ how often one opens and closes a refrigerator really affects how
           much power it uses, more than how much it contains.
           \_ this is true but the question was about the effect of fullness
              on power consumption.

Reminder!  Special Session of Micronet THURSDAY:
        Speaker:        Calvin Moore, Professor and Chair, Math Dept.,
                        and Chair of the Commission on Computing.
                        Prof. Moore will be discussing the
                        commission's recent report on the future
                        orginizational direction of computing on
                        the UCB campus.  The commission was
                        mostly made up of faculty, so this is a
                        chance for staff to give feedback.
                        The URL for the report is:
                        link:www.chance.berkeley.edu/evcp/new.html
        Time/Date:      12-2pm, THURSDAY 9/17/98
        Location:       223 Moses Hall
        \_ Staff feedback?  They needed more landfill material?
           The only thing more ridiculous than staff feedback is student
           feedback.
           \_ There were two students on the commission.
                \_ Woo woo! Power to the people!  They served drinks?
2025/05/25 [General] UID:1000 Activity:popular
5/25    

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