here we go--- Stephen and Andrew in a rod measuring contest!!
whensis hit OZ?
On 23-May-08, at 9:33 AM, Stephen Walker wrote:
>
> Andrew wrote "Once they have a clean inner void they are stronger (a
> tube is stronger than a rod) "
>
> This is not true. A tube will be stronger than a rod of the same
> mass but you do not increase the strength of a rod by hollowing it
> out into a tube.
>
>
>
>
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