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Message: <blockquote data-quote="hans123" data-source="post: 3413160" data-attributes="member: 144366">1.  Aerogel <a href="http://en.wikipedia.org/wiki/Aerogel" target="_blank"><img src="http://www.acceleratingfuture.com/michael/blog/images/supercriticality.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a> Aerogel holds 15 entries in the Guinness Book of Records, more than any other material. Sometimes called “frozen smoke”, aerogel is made by the supercritical drying of liquid gels of alumina, chromia, tin oxide, or carbon. It’s 99.8% empty space, which makes it look semi-transparent. Aerogel is a fantastic insulator — if you had a shield of aerogel, you could easily defend yourself from a flamethrower. It stops cold, it stops heat. You could build a warm dome on the Moon. Aerogels have unbelievable surface area in their internal fractal structures — cubes of aerogel just an inch on a side may have an internal surface area equivalent to a football field. Despite its low density, aerogel has been looked into as a component of military armor because of its insulating properties. 2.  Carbon nanotubes <a href="http://en.wikipedia.org/wiki/Carbon_nanotube" target="_blank"><img src="http://www.acceleratingfuture.com/michael/blog/images/nanotubes.jpg" alt="" class="fr-fic fr-dii fr-draggable " style="" /></a> Carbon nanotubes are long chains of carbon held together by the strongest bond in all chemistry, the sacred sp2 bond, even stronger than the sp3 bonds that hold together diamond. Carbon nanotubes have numerous remarkable physical properties, including ballistic electron transport (making them ideal for electronics) and so much tensile strength that they are the only substance that could be used to build a space elevator. The specific strength of carbon nanotubes is 48,000 kN·m/kg, the best of known materials, compared to high-carbon steel’s 154 kN·m/kg. That’s 300 times stronger than steel. You could build towers hundreds of kilometers high with it.Too see all -<a href="http://weirdwonderfulandamazing.blogspot.com/2008/11/10-futuristic-material.html" target="_blank">http://weirdwonderfulandamazing.blogspot.com/2008/11/10-futuristic-material.html</a></blockquote>

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