Re: Dinosaur weights

[Matt Fraser <mattf+@pitt.edu>]

On Thu, 21 Aug 1997 Dinogeorge@aol.com wrote:

> In a message dated 97-08-21 18:07:29 EDT, redledger@cableinet.co.uk writes:
> 
> << It was also assumed that (and this is where my
>  ?physics is not so good) the mass of the dinosaur was equal to water, I
>  think.  Does water have mass? >>
> 
> Here I think you want density, rather than mass. The density of the dinosaur,
> that is, it's mass divided by its volume, should be about the same as that of
> water, since living tissue is mostly water by volume.

You are right, of course, about how to define density, but I think that
point at issue here is whether the dinosaurs were less dense than water,
since it is being argued that there volume was, in part, composed of
non-living gas poskets.

What about birds?  Same density as water?

Matt

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