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segunda-feira, 13 de maio de 2013

Mindsets, Metal e Plástico. E ser invisível no Radar, com uma Impressora 3D caseira, mais um Gerador Eólico inovador

A Mindsets dá-vos uma boa base para fazerem uma data de coisas, eis só as ùltimas duas, aLiga de Estañho com que podem iniciar-se na Fundição de Metais, com um risco reduzido,

Pewter Casting
The perfect way to introduce the principles of casting metal cleanly and simply.
Make impressive automotive parts, cogs and jewellery etc.
Just create your design and cut out (by hand, laser-cut or CNC) from thin sheets of MDF.
Trap the design in the mould case, pour the molten metal in and leave to cool for at least two minutes.

...E uma fenomenal ideia de usar barras de Alumínio entre 2 Placas, para fazerem Injecção de Plástico, com Pistolas de Cola!

 
Injection Moulding System

This pack enables all the key principles of injection moulding to be taught and demonstrated at a fraction of the cost of using commercial equipment. It enables students to design and make either simple or very complex moulds.
The “tooling” for small mouldings can be made in a matter of minutes using hand tools!

The class pack contains 2 glue guns, 10 coloured glue sticks, silicone grease spray, 5 mould cases and three packs of aluminium strips.


...E como nessa Página vos fornecem também os Materiais para as Experiências, vão lá!










Para terem uma noção do que se não poderá fazer ainda com as vossas Impressoras 3D caseiras, eis isto, um Escudo que vos torna invisíveis ao Radar!!! Já podem brincar ao 007...  


Make your own invisibility cloak with a 3D printer

By Brian Dodson

Invisibility cloaks have been around in various forms since 2006, when the first cloak based on optical metamaterials was demonstrated. The design of cloaking devices has come a long way in the past seven years, as illustrated by a simple, yet highly effective, radar cloak developed by Duke University Professor Yaroslav Urzhumov, that can be made using a hobby-level 3D printer.






Quem tiver idade para isso, e vir isto, vai-se lembrar dos Wind Traps, Geradores de Vento do Jogo de Computador, Dune 2...
Pois a Realidade imitou mis uma vez a Ficção, e eis estes Geradores de Eletricidade, a partir do Vento, e qualquer força de Vento!



Invelox wind turbine claims 600% advantage in energy output

Antonio Pasolini

SheerWind, a wind power company from Minnesota, USA, has announced the results of tests it has carried out with its new Invelox wind power generation technology. The company says that during tests its turbine could generate six times more energy than the amount produced by traditional turbines mounted on towers. Besides, the costs of producing wind energy with Invelox are lower, delivering electricity with prices that can compete with natural gas and hydropower.
Invelox takes a novel approach to wind power generation as it doesn’t rely on high wind speeds. Instead, it captures wind at any speed, even a breeze, from a portal located above ground. The wind captured is then funneled through a duct where it will pick up speed. The resulting kinetic energy will drive the generator on the ground level. By bringing the airflow from the top of the tower, it’s possible to generate more power with smaller turbine blades, SheerWind says.

http://www.gizmag.com/invelox-wind-generator/27377/



 








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