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  • Users: timbeau
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  1. timbeau

    Charging multiple low voltage batteries (via high tension?)

    I would like to find out how to charge large numbers of low voltage batteries simultaneously ASAP without overloading any individual battery cell. If I had, say, 160 AA 1.5v batteries using a 240V AC supply how would this be done without burning out individual batteries (my mind says 'series'...
  2. timbeau

    Why are jet aircraft so noisy? A resolution?

    Forgive me for such a basic question. I live under an intermittent flight path. While I accept this as a natural consequence of where I live (West London, which has many other advantages!) I am amazed at the sheer volume of noise that civil airliners produce. The aircraft in question appear to...
  3. timbeau

    Temperature difference between evap & cond

    Hi, I would like to know the typical temperature differences between the medium in the chiller part of an air conditioner and the hot part (that sits outside). To lose heat in hot countries I am guessing that it has to be pretty hot, and to chill hot air the cold part must be pretty cold...

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