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Date:         Wed, 12 Jul 2000 22:58:46 -0700
Reply-To:     Austin <austins@ix.netcom.com>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Austin <austins@ix.netcom.com>
Subject:      Fwd: Re: Weep No More For Me
Content-Type: text/plain; charset="us-ascii"; format=flowed

>From: "Karl F. Bloss" <bloss@enter.net> > > > based on the original poster's assumption that the water pump has to work > > relatively hard to pump coolant uphill, would it do less real work if > the van > > were constantly driven downhill? > >Forget differential equations. If it's a closed non-leaking system, it >doesn't >matter how the van is facing, the waterpump is only overcoming the frictional >losses in the system, not pumping up or down. I.e. the more piping, the more >friction, the more the pump has to work. > >Uphill and downhill don't matter because the starting and stopping point for >the fluid is the same. If the van is facing downhill, for every unit mass of >coolant that's going downhill, another unit mass is going uphill and vice >versa >if it's pointing uphill. > >-Karl

OK, I understand how this applies (& makes sense) when driving North, or South, but what about East <-> West???

Austin (save for Friday...)


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