Estufas solares | Spora BioArquitectura
En nuestro país hay millones de personas que cocinan con leña, aparte de que se destruyen los bosques, el humo que se respira es perjudicial. Aprovechemos el calor del Sol que es gratis, recuerde lo caro que resulta el cocinar con gas. Con la cocina solar se alcanzan temperaturas de hasta 500 grados centígrados. Me gusta: Me gusta Cargando...
7 Foot Axial Flux Wind Turbine
This instructable documents the process of my single rotor wind turbine. It is built with inspiration from Hugh Piggot and the folks at Otherpower.com. This is my first attempt at building a wind turbine, and I will try to include the mistakes I've made along the way so that other first-time builders can avoid them! Since this entire project has a budget of just about $1000, it is meant to be able to be completed by both newcomers to wind energy as well as those who don't have a lot of money to throw around. I also tried to use as much recycled material as possible, so a large portion of this turbine is made from a junked car and metal that was going to be thrown out by fabricators. When I first began this project I had a decent grasp of electricity and electronics, which was helpful. If you want to know more about electricity or electronics, the book Teaching Yourself Electricity and Electronics by Stan Gibilisco is a great learning book and valuable resource to have around.
Build Your Own ELECTRIC MOTORCYCLE
The finished project is a 1981 Kawasaki KZ440, converted to electric. It is powered by four Optima Yellow Top sealed (AGM) lead-acid batteries, that drive a Briggs & Stratton Etek electric motor. The speed of the motor is controlled by an Alltrax brand "AXE" programmable controller that can run at up to 48 volts and 300 amps. Contrary to popular belief, and electric motorcycle is NOT silent, but is CONSIDERABLY quieter than a typical gas cycle. The cycle is GEARED to 45 mph, has fairly good acceleration, no clutch or transmission. There's no oil to change, to mufflers to rust off, no air filter, no carbs to tweak, and no gasoline. The cycle recharges from the wall, through a renewable energy program, and if there is a blackout, I can actually run my house off my electric motorcycle! In this Instructable, I'll walk you through the work required with the motor, batteries, controller, and mounting all components, including showing you some low-tech paper and cardboard "CAD" tricks.
Panneau Solaire en canettes
Je vous présente aujourd’hui mon œuvre préférée. C’est un capteur solaire thermique à air. Je me suis inspiré d’américains qui réalisent et commercialisent des panneaux fabriqués avec des canettes recyclées. C’est ici que ça se trouve : Ils vendent ça 2700$, donc je me suis dit que je pouvais essayer de le fabriquer moi-même (et si possible de l’améliorer). Les canettes sont percées et assemblées en colonnes dans lesquelles l’air circule et se réchauffe quand il y a du soleil. Le principe (en rapide), c’est que le panneau est posé sur un mur orienté Sud (la position verticale est idéale pour l’hiver car le soleil est bas dans le ciel) et dès que le soleil se montre, l’intérieur du panneau surchauffe (effet de serre : les canettes sont peintes en noir et le caisson isolé et la vitre empêche la chaleur de ressortir). Petite photo du panneau : Fabrication : Le plus long, c’est la préparation des canettes : il faut d’abord les collecter puis les laver et les percer.
Open Source Energy Network (OSEN)
(Teaser page created prior to Oct. 22, 2005 launch) An alternative energy non-profit organization preparing to launch. Will feature inventor tools, open source communication resources, daily news with radio and video component, blogs, comprehensive directory. Available Features Official Websites OSEN.org - Brief splash, with "under construction / coming soon" notice. Preview Videos Video Stills: Home Page Snapshots (Presently password protected until launch) OSEN News OSEN Radio Inventor Profiles OSEN Hummer (green, clean, mean) PES Network Inc. This present website is one of four primary websites operated by PES Network, Inc, which will be migrated to OSEN so they will all be housed at one location. FreeEnergyNews.com - Daily news and directory. Mission Statement "Open Source Energy Network facilitates energy technologies that efficiently tap into free, clean and renewable power sources. Contacts Matthew L. See also
DIY fire making
Fabriquer un panneau solaire thermique pour moins de 5 euros | energies2demain
An Organic Light Emitting Diode
</p><p><h2>ENABLE JAVASCRIPT<br />TO PLAY MOVIES<br />OF EACH STEP</h2> Modification by Jason Marmon, George Lisensky, and Wendy deProphetis from Frank G. Gao and Allen J. Bard, "Solid-State Organic Light-Emitting Diodes Based on Tris(2,2'-bipyridine)ruthenium(II) Complexes," Journal of the American Chemical Society, 122(30), 7426-7427 (2000) and Hannah Sevian, Sean Muller, Hartmut Rudmann, and Michael F. Rubner, "Using Organic Light-Emitting Electrochemical Thin-Film Devices to Teach Materials Science," Journal of Chemical Education, 81(11), 1620 (2004). A coordination complex between a transparent tin oxide electrode and an active metal electrode produces light when an external voltage is supplied. Clicking a thumbnail on this web page ( shows a movie of that step. Identify the conducting side of a tin oxide-coated piece of glass by using a multimeter to measure resistance. Is the circuit a diode? Conclusions Materials
DIY Hand Stamped Swaddle Blankets
I can't believe I only have a month (or less) left before our bitty baby girl arrives! I've been trying to do my best to prepare for her arrival amidst all the many things going on here - back-to-school, illustration work, blogging and more! Little by little things are starting to look like a baby just might be coming to stay in our home soon. Last week I decided to create a few hand stamped swaddle blankets made out of a gauzy muslin fabric. I like how simple they were to do and how graphic they turned out. To make these I cut up large squares of muslin fabric. The trick for me was to apply the paint to the stamp with a paint brush before stamping onto the muslin. After hand stamping the blanket to my liking, I hemmed the edges of the muslin. I then created another one from a pretty salmon pink fabric found on my LA Fabric District shopping spree (I think it's the same fabric as Dana used in her tutorial! Rain drops? Now to find a crib...and perhaps a rocking chair...and...
Solar energy projects for Do It Yourselfers to save money and reduce pollution
Open Source Washing Machine Project
