Richard Casady wrote:

On Thu, 06 Dec 2007 18:32:10 -0600, cavelamb himself
wrote:


Richard Casady wrote:

On Wed, 5 Dec 2007 07:41:59 -0500, "Sal's Dad"
wrote:



as 1/8 aluminum weighs about the same as 3/4
ply.


If you divide 2.7, the density of aluminum, by 6, you get .45. I
thought plywood was heavier than that.

Casady


plywood floats.

Aluminum don't.

What am I missing here?


A clue.

Casady


I thought most aluminum alloys weighed in at .1 pound per cubic inch.
Except 6061 which is only .09 lbs/cu.in.

Ply was .025 to .033 lbs/cu.in.

So clue me in.