[Phys-L] Re: HRSI (High-Temperature Reusable Surface Insulation) picture

[Brian Whatcott <betwys1@SBCGLOBAL.NET>]

At 09:23 AM 4/19/2005, Dwight, you wrote:

> In my Physics class, we are currently covering Heat.  We were discussing the
> ability of materials to conduct and insulate heat.  The students brought up
> about the tiles on the Space Shuttle.  I wanted to show them a picture of
> its extreme ability to insulate.  I remember seeing a color picture of a man
> holding onto a glowing cube of the HRSI material.  I've also seen one with
> someone holding onto it and a torch is blasting the other side of the
> material.  I've looked on various websites and have used Google, but I
> haven't had any luck.  Does anyone have or know where I can find such
> pictures?
>
> Thank you,
> Dwight
> Ashland, OH


Which reminds me - silica aerogel is a material whose density is listed at
  0.08 gm/cc while a list of common gas densities shows hydrogen at
0.09 gm/cc.

Is it surprizing then that a NASA spokesperson  once publicized this
"space-age" material as lighter than air - so that it floats.
[or not - as the case indeed is]



Brian Whatcott    Altus OK    Eureka!
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