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Date Posted: Monday, November 24 2008, 13:04:13
Author: Fred
Subject: Re: mercury lens floation
In reply to: Bob Pass 's message, "Re: mercury lens floation" on Monday, November 24 2008, 11:19:56

I think Michael is going in the right direction.

The following might help,even though when it comes to the actual formula I get lost!!

I think Archimedes principle was that any object that floats will displace its own weight of fluid. Any object that sinks will displace an amount of fluid equal to its own volume

Mercury with density of 13,600 kg/m3,is 13.6 times heavier than water

So an equal volume of mercury will support an object 13.6 times heavier than the same volume of water

You then need to know the density of the float,which is volume and weight per unit,and if the float is less dense than mercury it will float?

Not a full answer,but I hope heading in the right direction.

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