AVR-Chat

Ahem,

   Water density is a constant, water _pressure_ increases with depth, 
and if the ball acts the way my BC does, the air in the plastic ball 
loses buoyancy as the water depth increases.  But since my BC compresses 
with depth and the plastic ball probably wouldn't, that might not be so. 
  These are basics every diver learns.

DLC

Jim Wagner wrote:
> But water density increases with depth, and thus apparent buoyancy  
> increases as the water gets deeper.
> 
> Jim Wagner
> Oregon Research Electronics
> 
> On May 14, 2009, at 5:28 PM, Graham Davies wrote:
> 
>>
>> --- In AVR-Chat@yahoogroups.com, "Brian" <blue_eagle74@...> wrote:
>>> ... a pressure sensor at the top
>>> of the tank and a rod extending
>>> down into the tank with a plastic
>>> ball fixed at the end. the higher
>>> the water level the more force on
>>> the sensor.
>> Are you suggesting that the force of buoyancy on the plastic ball  
>> will increase as the water level increases? You might want to have a  
>> word with Archimedes about that.
>>
>> Graham.
>>
>>
>>
> 
> 
> 
> [Non-text portions of this message have been removed]
> 
> 
> 
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Question with boldness even the existence of a God;
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homage of reason, than that of blind-folded fear.
Thomas Jefferson
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