Nitrogénio Liquido em casa! E Moldagem em Resina, Um Super-Condensador em Grafene, e Lançar Bolas de golfe!

Hoje, têem muito com que se entreter...

A começar por esta maravilha Geek e Engenhocas, produzir Azoto Líquido, sim , o Liquid Nitrogen das Experiências malucas e shows de fumo! Qual será o Engenhocas que não quererá ter uma gigajoga destas em casa?

Brutal! 

Isto  merece um grande MUÁHÁHÁHÁ!

Homemade liquid nitrogen generator

imsmooth

Did you ever think you could make liquid nitrogen in your own garage? This is an industrial process so how can an individual do this? Still doubt me? Intrigued? Read on.

As a lover of science I tried to think of a challenging project that was out of the ordinary. After going through the internet web and Youtube I realized that no one had made liquid nitrogen in his home. Yes, I did see some videos where some would use a Stirling Cooler from a cryorefrigerator and use this to condense nitrogen on the exterior of the cold-head. While one is making liquified gas, this is done using a prefabricated machine. I wanted to make the machine that liquefies the gas. Furthermore, a cryocooler has a very low production rate. You will only get about 500 - 1000ml per day. On the following pages I will walk you through the basics of how to build your own liquid nitrogen generator. Using easily obtained materials you can liquefy nitrogen or air. The unit cools to -320F in under 50 minutes. The production rate is about 350 cc/hr. 

http://www.instructables.com/id/Homemade-liquid-nitrogen-generator/

 

Moldar várias peças , a partir dum só Molde, feito numa Impressora 3D, ou cortado numa máquina Laser CNC, ou até a partir duma peça original esculpida à mão, é assim, na minha opinião, que se fabrica em casa, depressa e bem!

Ora este Instructable vai-vos dar um sem-fim de dicas, a começar pelo melhor, uma Resina para Moldagem barata!

É bom!

Ideal para Modelistas, Engenhocas, e Artistas que queiram vender Bustos, Brinquedos, etc...

Resin casting gears for power wheels

realjohnnybravo

This is my very first instructable and I hope you will enjoy it.

Please any mistakes caused by my bad english. :-)

Some of you will ask me the question, why not just buy a ready to go gear from the shop or ebay for the usual $19,95. You don't need to ask me that, as I have produced these gears as POC for myself to know if it works this way and if I am able to it. Maybe some tim will come and I will need the procedure to make some gears quick and will not be able to buy any replacement parts. Also remember, these parts are much stronger than that you can get in your store. 

http://www.instructables.com/id/resin-casting-gears-for-power-wheels/

Eis um Super-Condesnador feito em Grafene, para os Engenhocas da Electrónica, para sei lá que mais Projectos.

E é feito em casa, o que quer dizer que o podem fazer de raíz para os vossos fins particulares:

Make a Graphene Supercapacitor

quicksilv3rflash

This Instructable (loosely) follows the method of graphene production described by C&EN, who cite a paper published by Parvez, Wu, et. al. In the paper (Exfoliation of Graphite into Graphene in Aqueous Solutions of Inorganic Salts), it is explained that putting a graphite electrode and a platinum electrode into a solution of inorganic salts (ammonium sulfate works best, they say) with a 10V supply (graphite = anode, platinum = cathode) causes the graphite to be torn apart by electrochemical activity to become graphene! Graphene has attracted much hype and study recently. One of its near-term applications may be in high density supercapacitors.

http://www.instructables.com/id/Make-a-Graphene-Supercapacitor/

E para atirar bolas pró cão buscar, para tiro-ao-alvo de jardim, para Foguetes, ou apenas para a brincadeira, eis como lançar bolas a partir duma Bomba de Ar, e algumas mais gigajogas feitas em casa, muito bom para a descontracção:

40mm Burst Cannon

Mrballeng

This little cannon is powered by bursting a rubber diaphragm with a bicycle pump. I cut the diaphragms from an old bicycle inner tube. You can double them up or burst one at a time. It uses 40mm foam practice golf balls for ammo. You can also use it with just the pump but it doesn't fire with near as much force.

This is not my original idea. A few years ago I saw this rocket launching toy on TV. If you make this you could use the same replacement diaphragms.

http://www.instructables.com/id/40mm-Burst-Cannon/

     

A vossa cabeça, em papel! E Uma Sauna em Cortiça, Ar Comprimido, (num Híbrido), Meetup da Shapeways, cabos eléctricos que se auto-reparam, e um Super-Gel... Ah, e RAY GUN COMPLETA!

Se têem uma grande cabeça, e Fotos dela, porque não fazem uma escultura, em Papercraft?

Agora, a Paper-kit.com faz exactamente isso, a partir das vossas fotos, envia-vos um Kit de colar e montar!

Paper-Kit transforms 2D portraits into a 3D model 

Jason Falconer

Papercraft projects tend to be based on 3D models from video games or custom-made art projects. The basic idea is to take a 3D model and flatten it out in software such as Dunreeb Cutout or Pepakura Designer by Tama software. Then you print it, cut out the parts, fold them where necessary, and paste the whole mess together. Now, thanks to Paper-kit.com, if you've got a big head – or simply want one – you can use the same technique to build an over-sized three-dimensional paper model of yourself using 2D photos.

http://www.gizmag.com/paper-kit-3d-portrait/25960/

Completamente Portuguesa, esta sauna, da Balness, é feita em Cortiça, Material com todas as qualidades para vos permitir um Relax impecável:

Cabine de Sauna Lusa 13.13 Basic

Através dos tempos, a cortiça tem sido utilizada graças às suas inúmeras características tecnológicas como um componente essencial no desenvolvimento dos mais diversos projetos industriais. Definindo-se como um projeto natural, esta sauna é renovável, não poluente, quimicamente inerte, inócuo para a saúde, resistente fricção, com baixa termo condutividade, luz, com um excelente comportamento acústico, alta impermeabilidade a líquidos e sem lançamentos de gases tóxicos. A cortiça foi inserida em protótipos ou produtos finais das aeronáuticas e empresas produtoras de automóveis, bem como em arquitetura, design de moda e interiores, entre outros.
Como o resultado de um processo de recriação de ascendência da sauna, este modelo é uma ideia de inovação que combina os detalhes de cortiça com os de madeira de cedro, resultando numa simbiose perfeita entre a tradição e contemporaneidade. A luz, discreta e elegante, acentua as texturas e o design minimalista.

http://balness.pt/4117

 

Uma grande ideia é, também, este Híbrido Ar Comprimido/Gasolina, da Peugeot, com 45% de poupança, e 90% mais de alcançe, assim sim, eis um Carro para a Cidade, que não é um Brinquedo Caro, mas sim, uma Ferramenta Útil!

Peugeot Citroen to introduce compressed air hybrid by 2016
Darren Quick

Various compressed air-powered vehicles – of both the two- and four-wheeled variety – have graced our pages over the years, but with a few exceptions, such as Volvo’s Air Motion Concept, major automotive manufacturers have generally shied away from such technology. PSA Peugeot Citroen is bucking this trend with its “Hybrid Air” powertrain that addresses the limited range of compressed air energy storage technology by combining it with a gasoline powered internal combustion engine (ICE). The company plans to have Hybrid Air powered vehicles on the road by 2016.

http://www.gizmag.com/peugeot-citroen-hybrid-air-compressed-air/25961/

Já só têem 2 dias para organizarem um Meetup da Shapeways, na vossa àrea! Sim, Fabbers de todo o Mundo vão partilhar experiências, nesse dia, vejam a notícia:

Announcing Shapeways World Meetup Day on February 28th

Without doubt, the best Shapeways community events are our Meetups. Every time we attend one, we meet great people, hear inspiring stories and make new friends. People are often surprised to find fellow community members in their town and stay in touch.

So far, we've had Meetups in cities all over the world, including New York, London, Amsterdam, Paris, Berlin, San Francisco, Boston, Los Angeles, Chicago, Newcastle and of course Eindhoven (Shapeways' birthplace!). We can't be everywhere all the time and we know you're eager to share Shapeways with your friends so we're excited to announce...
Shapeways Community World Meetup
This year, on Thursday February 28th, we will be hosting our first ever Shapeways Community World Meetup, and we need YOUR help to make it happen!
During the World Meetup, we will have as many local Meetups on the same day as possible, sharing pictures and videos with each other. We'll be partying around the world!

http://www.shapeways.com/blog/archives/1890-Announcing-Shapeways-World-Meetup-Day-on-February-28th.html?ca=email&ct=012413&cr=t01

Isto vai fazer História, cabos eléctricos que, quando cortados, esticam, e, re-fazendo o contacto, auto-regeneram-se!

Stretchable electrical wires heal back together after being severed

Ben Coxworth

Last month, we heard about how a team led by North Carolina State University’s Dr. Michael Dickey had created an electrical wire that could be stretched up to eight times its regular length ... and still carry a current. This was possible thanks to a conductive liquid metal alloy of gallium and indium, contained inside the wire’s elastic polymer outer housing. Now, Dickey's team has developed a new wire that not only can be stretched, but that will heal itself when severed.

http://www.gizmag.com/self-healing-stretchable-wire/25933/

Eis um Super-Gel intrigante, fica líquido com o frio, e solidifica, quando aquece!

New “super gel” is liquid when cold and stiffens when heated

Ben Coxworth

Gelatins take on a semi-solid state when cool, and become a liquid when heated, right? Well, not always. Chemists from Radboud University Nijmegen, in The Netherlands, have created a “super gel” that behaves in the opposite manner – it’s liquid when cool, and stiffens when heated. What’s more, it reportedly absorbs water 100 times better than other gels. To make it, the researchers copied the protein structure of human cells.

A team led by Prof. Alan Rowan and Dr. Paul Kouwer made the gel using a synthetic polymer known as polyisocyanide. Its molecules twist together to form strong, stiff networks of what are referred to as “nano ropes.” Each cell in our bodies contains thousands of protein structures that are structurally very similar to these ropes.

http://www.gizmag.com/super-gel-temperature-responses/25934/

E a Pistola, está montada! 

Muito trabalho de Serra Pendular, muita serradura, e lá fiz a coisa encaixar as peças todas, neste Proof of Concept, em MDF de 3mm, um material nada parecido com o Acrílico Translúcido, para o qual a pistola foi criada, mas que serve para provar o Conceito!

Cá vai Vídeo:

Lançador com uma data de truques

Ora eis um Projecto do nosso amigo Grant Thompson, onde podem fazer um Lançador Pneumático, mas também aprendem uma data de truques para Projectos vossos em PVC, e Ar Comprimido, e até, como enfiar fio eléctrico por um tubo adentro, o que é sempre bom, para impermeabilizar a cablagem duma data de diferentes engenhocas! 

Aprendam, que aprender isto, é de borla!

Powerful Handheld Rocket Launcher (AK-47 style)

Grant Thompson

http://www.youtube.com/watch?v=7Z-L4GliAts

Uma Start-up em Lisboa, e Músculos robóticos de ar comprimido

Do André Marquet, no Linkedin aparece-nos esta iniciativa:

 

Live your startup dream in Lisbon, Portugal.

Beta-experience will help you accelerate your business idea from May 25th until June 1st: interact with over 60 mentors and experts over one month of free office space in the center of the city of Lisbon. Sign up until March 31st to be called up:

Beta-Experience - Accelerate your startup in Lisbon, Portugal.

Talvez apareça lá alguém a montar um Robot com estes "músculos" de ar comprimido:

Soft Robots: Making Robot Air Muscles

Pneumatic robot air muscles can be easily made using Oogoo. These flexible silicone muscles have the advantage that they are inexpensive and can be easily molded to fit almost any robot body.

http://www.instructables.com/id/Soft-Robots-Making-Robot-Air-Muscles/

Woodmarvels e mais...

Notícia da Ponoko, a WoodMarvels, onde aparace um desenho deste vosso amigo, publicou mais um Livro com centenas de desenhos:

Evolution of Wooden Designs – 200 pages of laser cut patterns

If you’re a frequent visitor to the Ponoko Showroom, then chances are you’ve already come across the prolific works of Jon Cantin.

Operating under the banner of WoodMarvels, he has produced hundreds of laser cut designs featuring toys, games, vehicles and more.

WoodMarvels 3: Evolution of Wooden Designs is now available in print and download versions.

What sets this latest publication apart is the format in which the 3d designs appear. Each project includes 3d rendered step-by-step assembly instructions, as well as a pattern on a grid layout. By utilising the grid, Jon incorporates the material thickness – thus giving users a reference point at which they can scale the designs to suit whatever material they wish to work with.

http://blog.ponoko.com/2011/11/02/woodmarvels-volume-3-is-out/

O Site Vintage Projects, com muita ideia antiga, mas boa:

Welcome to the Vintage Projects Collection on a New Server!

Our goal is to preserve the inspired DIY spirit of the past. Our free project reprints cover farm machines, the woodshop, machine shop, boats, archery and more. These vintage plans come from a half-century ago when do-it-yourself enthusiasts turned wood, metal and old motors into useful workhorses, functional tools, and toys.

http://www.vintageprojects.com/

E uma Mota a Ar Comprimido!

02 Pursuit motorcycle runs on compressed air


By Noel McKeegan

A vehicle that runs on air. It sounds like a fantastic idea, but energy is still needed to compress the air and the losses that go hand-in-hand with converting energy still have to be taken into account, just as in fossil fuel-based propulsion systems. Pros and cons aside, we still haven't seen air powered transport make an impact in the race to find economic, environmentally-friendly ways to get from A to B. Industrial Design student Dean Benstead thinks that compressed air does have a role to play in the future transport mix, and he's designed a working air-powered motorcycle prototype with a view to exploring the viability of the platform.

http://www.gizmag.com/compressed-air-motorcycle/20354/

Instructables

Façam a vossa própria Àgua Gaseificada, ou porque não, Vinho à Pressão...

http://www.instructables.com/id/DIY-Soda-Water-%26-Home-Carbonation---Pays-For-Itsel/

Foguetões feitos por Impressão 3D!

Subscrevam este Grupo:
http://www.youtube.com/user/3DPrinters



E um Funil de Berlese, para coleccionar Insectos!

Apanhará Mosquitos?
Falem com um Especialista...
Ou tentem vocês!
http://www.instructables.com/id/Berlese-Funnel/



E uma maneira de medir a velocidade e os tiros das vossas Pistolas de Painball, Fisgas, Caçadeiras, sei lá eu!
Ou seja, um Croógrafo Balístico:

http://www.instructables.com/id/PaintballBallistic-Chronograph/

Science 4 You... Ora TOMA!

Faz bem à alma, ver bons exemplos em Potugal!!!

newbox.TV

A Science4you, empresa 100% Portuguesa, tem actualmente duas áreas de negócio distintas:

Brinquedos: Produção, Desenvolvimento e Comercialização

Formação: Campos de Férias e Workshops de Ciência

newbox.TV

Brinquedos Didácticos, cá da terra, nada menos que geniais;

É Bom!

Vão ao Site deles, já:
http://www.science4you.pt/

Novas Tecnologias...

Um novo método de dissociar o Hidrogénio do Oxigénio na Àgua, através de dois passos, utilizando um Complexo Metálico, uma nova solução para a produção de Hidrogénio, e que aproveita também o Oxigénio:

Unique Approach For Splitting Water Into Hydrogen And Oxygen

by Staff Writers

Rehovot, Israel (SPX) Apr 07, 2009

The design of efficient systems for splitting water into hydrogen and oxygen, driven by sunlight is among the most important challenges facing science today, underpinning the long term potential of hydrogen as a clean, sustainable fuel.

But man-made systems that exist today are very inefficient and often require additional use of sacrificial chemical agents. In this context, it is important to establish new mechanisms by which water splitting can take place.

http://www.energy-daily.com/reports

...E progressos importantes estão a ser feitos no campo da Astronáutica Privada, uma Bomba (de bombear) para Hidrogénio, mais barata e de longa vida:

XCOR Aerospace and United Launch Alliance Announce Successful Hydrogen Piston Pump Tests

June 8th, 2010, Mojave, CA, USA and Littleton, CO, USA: XCOR Aerospace, the developer of the Lynx, a manned suborbital spacecraft and related technologies, and United Launch Alliance (ULA), the primary launch services provider to the US Government, announced the first successful demonstration of XCOR’s long life, high performance piston pump technology with liquid hydrogen.

XCOR engineers Mark Street (L) and Mike Valant

discuss an upcoming test in the control room.

XCOR has been developing piston pumps for space applications for more than eight years as an alternative to turbopumps, demonstrating longer life and lower cost. XCOR’s piston pumps have other advantages including the ability to operate over a wide range of speeds and inlet conditions. After XCOR performed risk reduction and demonstration projects in 2009 that validated high performance cryogenic (liquid oxygen and liquid nitrogen) piston pump operations, ULA asked XCOR if the pump technology could be extended to liquid hydrogen. Implementing rapid prototyping techniques and working on a fixed price basis, XCOR developed a single piston work-horse test article and test bench, and then successfully tested the pump with hydrogen in less than four months. Based on this success, ULA and XCOR have begun the next phase of the project to further mature the technology.

http://www.xcor.com/press-releases

Uma Estação Espacial de encher?

 The key to Bigelow’s space station designs is inflatable habitats, which allow structures to be tightly packed for launching and then fill up in space. Two full-size mockups sit on the warehouse floor at the company’s Las Vegas factory. At left is the smaller Sundancer habitat, with room for three occupants. At right is the larger BA330 habitat for six people. (BA stands for Bigelow Aerospace; the 330 refers to the interior size – 330 cubic meters, or 11,700 cubic feet.)

Vejam uma data de Slideshows, no New York Times:


http://www.nytimes.com/slideshow/2010/06/07/science/space/20100608-space-1.html

Instructables!

Eis alguns Instructables, e alguns podem ser usados, se modificados, para a nossa realidade:

-Um assador de "marshmallows" , pode servir para assar chouriços:

 http://www.instructables.com/id/Mini-Smores-Grill

Uma Bandeira para o PC, com vento, e tudo, podem por as dos vossos Países respectivos, para o Mundial de Futebol:

Fica assim:

http://www.instructables.com/id/USA-USB-American-Flag-USB-Memorial/

...Mas este, é universal, um Morteiro de Àgua:

 Hé, hé, hé!
Toma lá, que é ecológico!
http://www.instructables.com/id/Build-a-water-mortar/

Maravilha!

Uma maravilha!
Feito para Paintball, mas pode servir para sabe-se lá que mais...
Até para um Martelo Pneumático feito em casa!
Lançadores de Sondas Científicas, Pistolas de Pregos, etc!

newbox.TV

Vejam os planos, ou quase, aqui:
http://www.spudfiles.com/forums/viewtopic.php?t=160

Coisas Espectaculares!

Um Canhão que dispara Abóboras a 1.126 Metros, sim, mais de UM KILÓMETRO!

http://www.popsci.com/gadgets/article/2010-01/air-cannon-sends-pumpkins-3700-feet

...E uma mota Faça-Voçê-Mesmo, que faz 214 MPG, 214 Milhas por Galão de gasolina:



http://www.wired.com/autopia/2010/01/streamlined-honda-innova/



.

Laorden, para engenhocas e Bricolage

Ar Comprimido, Energia e Indústria, vejam isto:

Com um apresentação como estas, não era preciso mais:

Bricolage Connosco!
Dispomos de equipamentos e produtos para utilização doméstica.


Projectamos RPS unit dedicados a este ramo, Home.unit. Esta pode ser aplicada, entre outras, em:

* Estruturas de apoio a máquinas
* Equipamentos domésticos
* Criação de autonomias

...Mas eles têem muitas mais àreas de negócio, portanto, Inventores de toda a espécie, investiguem!

Só dois exemplos, produtos para Medicina, e produtos para Energias renováveis!
http://www.laorden.net/Home/tabid/38/Default.aspx




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