Re: [ATM] water drive

[GARY FUCHS <gary@rcn.com>]

Assuming that's correct - that the pressure would gradually 
decrease with the water level - if you drained it from the 
surface wouldn't the pressure remain constant?

Gary Fuchs


---- Original message ----
>Date: Tue, 13 Jun 2006 13:42:58 -0400
>From: DU <desiredusername@gmail.com> 
>Subject: Re: [ATM] water drive  
>Cc: "ATM Superheros" <atm@atmlist.net>
>
>Wouldn't this be non-constant due to varying water pressure?
>
>On 6/13/06, Dominic-Luc Webb <dlwebb@canit.se> wrote:
>>
>>
>> Surely this is not original, but as per my recent posting to
>> this list, has anyone built a drive that has some extension 
from
>> the polar axis floating on water (like sitting on a rubber ball),
>> kind of like the plunger in a toilet, and just let the water 
drain
>> via a regulated valve. I am no engineer (but recently & 
successfully
>> fixed my toilet). The motion seems very smooth, although 
the ball
>> would presumably have to be pretty large to carry much of 
a load.
>> Most scopes are actually pretty small, and there seems to 
be interest
>> in lightweight designs (like our earlier carbon fibre threads). 
I am
>> curious what problems this would have.
>>
>> Dominic-Luc Webb
>>
>> Dominic-Luc Webb
>>
>>
>>
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>>
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