There is a chance that they are using a new aerogel made from cellulose that is prized for its strength and flexibility.<p>Article:
<a href="http:&#x2F;&#x2F;www.rsc.org&#x2F;chemistryworld&#x2F;2014&#x2F;07&#x2F;plant-material-aligns-make-tough-aerogels-nanocellulose" rel="nofollow">http:&#x2F;&#x2F;www.rsc.org&#x2F;chemistryworld&#x2F;2014&#x2F;07&#x2F;plant-material-ali...</a><p>Publication:
<a href="http:&#x2F;&#x2F;onlinelibrary.wiley.com&#x2F;wol1&#x2F;doi&#x2F;10.1002&#x2F;anie.201405123&#x2F;abstract" rel="nofollow">http:&#x2F;&#x2F;onlinelibrary.wiley.com&#x2F;wol1&#x2F;doi&#x2F;10.1002&#x2F;anie.2014051...</a><p>One thing I find interesting is that &#x27;aerogel&#x27; is a category of materials.  I thought it was reserved for the silica based aerogel i&#x27;ve seen countless news stories about.  The wiki definition is &quot;Aerogel is a synthetic porous ultralight material derived from a gel, in which the liquid component of the gel has been replaced with a gas&quot;.  Theoretically, you could market fiberglass insulation as &#x27;Aerogel insulation&#x27; if you suspended the glass fibers in a gel and then replaced the gel with a gas.  The result could have worse insulative properties that standard fiberglass and yet technically be an aerogel.