Gizmos and Stuff

quinta-feira, 9 de dezembro de 2010

2 cenas fantásticas

Uma bela duma Mesa para o vosso Dremmel...

http://www.instructables.com/id/Mini-Tablesaw-Router-Shaper-for-Dremel-rotary-/

E uma boa notícia para as vossas Máquinas Voadoras, só de ver este catrapázio, a ser lançado, já fiquei bem-disposto à brava, Muáháháháhá!

Horizon's AEROPAK fuel cell proves itself on Skylark I-LE UAS test flight

By Darren Quick
22:11 December 8, 2010

The latest test of Horizon Energy System's AEROPAK fuel cell power system has seen it fitted aboard an Elbit Systems Skylark I-LE UAS (Unmanned Aircraft System) and put through its paces. Although the AEROPAK has been put to the test in other UAS aircraft, the official test flight recently carried out in Israel marked the first time a fully operational system using the AEROPAK - including take-off and recovery with an operational payload integrated onboard - has been tested.

http://www.gizmag.com/aerogizmo/

quarta-feira, 8 de dezembro de 2010

Um Stencil para desenhar Fractais?

Eis uma à borla, para toda a gente, cortesia deste vosso amigo Inventor:

Um Stencil para desenhar Fractais!

As regras são simples,

e partindo dum padrão-base aleatório de círculos em vazio, (ós) e círculos preenchidos, cria-se um grande número de padrões que se repetem até ao infinito:

Vão à Ponoko, e encomendem:

http://www.ponoko.com/make-your-own/toys/fractal-puzzle-stencil--5014

Notícias

Para o ano que vem, um Exoesqueleto para Deficientes Motores...

http://www.gizmag.com/rewalk-robotic-exoskeleton/17197/

Uma câmara 3D...

http://www.gizmag.com/epfl-develops-360-degree-3d-panoramic-camera/17205/

O substituto do Space Shuttle...

E um Ferry-Boat a Hidrogénio:

http://www.gizmag.com/new-york-hornblower-hybrid-ferry/17214/

segunda-feira, 6 de dezembro de 2010

Super-Condensadores!

Carregam com a capacidade de Baterias, mas podem carregar ou descarregar em segundos, os usos são inúmeros, para qualquer Engenhocas...

Technologically, the nano graphene-based, ionic liquid-enabled supercapacitor provides a specific energy density of 85.6 Wh/kg (based on the total electrode weight) at room temperature and 136 Wh/kg at 80°C, both measured at a current density of 1 A/g (corresponding to a high charge/discharge rate).

a) These are the highest energy density values ever reported for nano carbon material-based supercapaitors dominated by the electric double layer (EDL) mechanism, with minimal contribution from any redox-type pseudocapacitance mechanism.

b) These energy density values are comparable to that of the Ni metal hydride battery. This new technology provides an energy storage device that stores nearly as much energy as in a battery, but can be recharged in seconds or minutes. We believe that this is truly a breakthrough in energy technology.

The theoretical capacitance of graphene is 550 F/g (Farads per gram).