Physics of a fish tank - great article, and what is the psi strength of silicone?

[reefsmurf]

Great article.. maybe we should sticky this:

http://www.aquariacentral.com/forums/showthread.php?t=89278

So.. does anyone know what the tensile strength of standard aquarium silicone is? According to that article, we have .72psi of pressure at the bottom in all directions of a 20" high fish tank. Does that mean silicone only needs to have .72 psi strength or higher to support a fish tank of that height (regardless of width and length?)

 

[reefsmurf]

Great article.. maybe we should sticky this:

http://www.aquariacentral.com/forums/showthread.php?t=89278

So.. does anyone know what the tensile strength of standard aquarium silicone is? According to that article, we have .72psi of pressure at the bottom in all directions of a 20" high fish tank. Does that mean silicone only needs to have .72 psi strength or higher to support a fish tank of that height (regardless of width and length?)

According to this site:
http://www.ides.com/generics/Silicone/Silicone_typical_properties.htm

Silicone has 33 to 2030 (!) psi. Why can't they use that for our tanks