Aerogel is a low-density solid-state material derived from gel in which the liquid component of the gel has been replaced with gas. The result is an extremely low density solid with several remarkable properties, most notably its effectiveness as an insulator. It is nicknamed frozen smoke, solid smoke or blue smoke due to its semi-transparent nature and the way light scatters in the material; however, it feels like extruded polystyrene to the touch.

Aerogels are solid substances similar to gels but where the internal liquid is replaced with air. Aerogels rank among the world’s lowest density solids. They are very porous and light, and have remarkably high internal surface area. Their microstructure and physical properties can be manipulated at the nanometer scale by selection of raw material and modification of manufacturing conditions. Aerogel products can be engineered to exhibit desired thermal, acoustic, mechanical and/or chemical properties. Aerogel materials can be produced as monoliths, thin-films, powders, or micro-spheres to respond to given application requirements.

The extremely high electrochemical surface area of ACI’s ENERGel™ carbon aerogel enables very high rates of charge and discharge. Capacitances of more than 104 F/g and energy densities of more than 325 kJ/kg have been demonstrated with carbon aerogels ultracapacitors. Additionally, power densities of up to 20 kW/kg have been achieved. This is orders of magnitude higher than what conventional capacitors offer. ACI believes that its ENERGel™ carbon aerogel is a superior option for applications such as specialized electrodes.

What sort of life will you be living 39 years from now? Scientists have looked into the future and they can tell you.

It looks as if everything will be so easy that people will probably die from sheer boredom.

You will be whisked around in monorail vehicles at 200 miles an hour and you will think nothing of taking a fortnight’s holiday in outer space.

Your house will probably have air walls, and a floating roof, adjustable to the angle of the sun.

Nastavak:

Will Life Be Worth Living in 2000 A.D.?

If you’ve ever wondered how things are made - products like candy, cars, airplanes, or bottles - or if you’ve been interested in manufacturing processes, like forging, casting, or injection molding, then you’ve come to the right place.

AIM has developed an introductory website for kids and adults showing how various items are made. It covers over 40 different products and manufacturing processes, and includes almost 4 hours of manufacturing video. It is targeted towards non-engineers and engineers alike. Think of it as your own private online factory tour, or a virtual factory tour, if you wish.

We are able to cover only a small number of products and processes, but we believe it will give you a good introduction to the world of manufacturing.

Enjoy!

How Everyday Things Are Made

The Dictionary of the History of Ideas: Studies of Selected Pivotal Ideas, edited by Philip P. Wiener, was published by Charles Scribner’s Sons, New York, in 1973-74. The Dictionary of the History of Ideas also appeared in Chinese- and Japanese-language editions.

However, the DHI has been out of print for many years. Aware of the new potential offered by electronic access to texts, the Directors and Board of Editors of the Journal of the History of Ideas authorized a grant to support digitization of the DHI. Substantial support has also been provided by the University of Virginia Library through its Electronic Text Center. The project has been undertaken with the permission of Charles Scribner’s Sons and of The Gale Group, of which Scribner’s is a part.

We invite those whose curiosity is stimulated by the Dictionary of the History of Ideas to investigate the Library of the History of Ideas (University of Rochester Press), which is made up of topical volumes containing articles previously published in the Journal of the History of Ideas; or to browse in the JHI itself.

Our guide provides an in-depth look at what products really work. We independently review products that are meta-efficient.

For something to be considered meta-efficient it must be:
Energy and Resource Efficient
Affordable
Reliable
Non-Polluting and Non-Toxic
Portable (where possible)

O cemu se radi…
Leksikon Yu-mitologije - prilozi za jednu arheologiju budućnosti

O Socijalisti�?koj Federativnoj Republici Jugoslaviji napisano je mnoštvo djela. Njena povijest, društveno-politi�?ko uređenje, privredni sistem, pravni sistem, obrazovni sistem, kulturno-umjetni�?ki život itd. osvijetljeni su (i još uvijek se osvjetljuju) iz najrazli�?itijih kutova, svim ovim aspektima posvećena je, izmedu ostalog, i �?itava jedna enciklopedija (Enciklopedija Jugoslavije). I nakon išceznuća SFR Jugoslavije ova djela još uvijek postoje. No u tim djelima nećete naći tko su tratatatirci, tko je Džuli, tko je Milka Babović, tko su Mujo i Haso, tko je mama Kukunka, a tko mali Juju, tko je Vu�?ko, tko je Suada, tko je Mile Lojpur, tko je dje�?ak sa Sutle, tko je Mica Trofrtaljka, tko je Bernarda Marovt, tko su Džirlo-djevojke, što je hrkljuš, otkud “Mirko, pazi metak!", “Vozi, Miško!” ili “Cijena - prava sitnica!", što je Kljuz, što je Cockta, fićo ili Plavi radion, što su Trumanova jaja, što je drn�?, a što gušterov let, kako je to mala moja kad ljubi Bosanac i zašto je svakom pioniru malenom svinjska glava ostala urezana u sjećanju. I zato: ex/post-Jugoslaveni svih zemalja, dozvolite da se obratimo!

Ovo je pokušaj da se sakupe opća mjesta jugoslavenske popopularne kulture, da se - u obliku leksikona - artikulira kolektivno jugo-pamcenje. Ne zbog prošlosti, već zbog budućnosti.
Sve �?ega se možete sjetiti dobro je došlo. Valjat će sve skupljene natuknice i objasniti, po mogućnosti preciznije locirati u vremenu, tako da ako imate bilo što dodati ili primijetiti - samo dajte. Što više asocijacija na određeni pojam, to bolje.

Nakon ovog sajta kona�?no u zajedni�?kom izdanju kuća Arkzin iz Zagreba i Rende iz Beograda leksikon će se pojaviti i u obliku bogato ilustrirane knjige. Kao još jedan napor kolektivnog autorstva, u duhu anticopyrighta i cyberkomunisti�?ke gift-ekonomije, podrazumijeva se da svoje priloge ostavljate dobrovoljno i u dobroj namjeri, s dozvolom i o�?ekivanjem da se pojave i u knjizi, ne o�?ekujući za to honorar.
Naravno, izdava�?i i urednici pridržavaju pravo faktografskog korigiranja te nužnog kraćenja i selekcije leksikografskih jedinica.

www.leksikon-yu-mitologije.net