Simple animation to explain complex principles 1, aircraft radial engine 2, oval Regulation 3, sewing machines 4, Malta Cross movement - second hand movement used to control the clock Solar Light How a Solar Garden Light works Two different circuits and how they work Both circuits can be converted to 5v regulated output. See: Power Supply 5v SolarNo kits are available for this discussion. The complete Garden Light can be bought for less than $5.00!! Both Solar Garden Light circuits in this article perform 2 functions: 1. They charge a battery and 2. Turn on a high-bright white (or yellow) LED at dusk and off during daylight hours.
Washit cleans you and your clothes simultaneously The final concept art for Washit - a combined shower and washing machine - shows both domestic and public use Image Gallery (4 images) Water is a precious resource and in places like Australia and the U.K., the onset of summer coincides with restrictions on water use – hosepipes for watering gardens are banned, and showers are recommended over baths. But even taking a shower uses a fair amount of water, which all ends up down the drain.
Simple Solar Circuits Simple Solar Circuits: How to get started adding solar power to your small electronics projects. Use the sun to power small solar and battery powered night lights, garden lights, and decorations for halloween. The first part of a solar circuit is… a device for collecting sunlight. 2012 James Dyson Award winner announced Dan Watson's SafetyNet, which lets juvenile and non-target fish escape commercial fishing nets, has taken out the 2012 James Dyson Award For the past month, the judges have been casting a discerning eye over the 15 finalists of the 2012 James Dyson Award and they’ve now made what no doubt was a difficult decision. Taking out the major prize is Dan Watson, who will receive £10,000 (US$16,000) for his SafetyNet system that tackles the problem of overfishing by providing escape exits for juvenile and non-target fish caught up in commercial fishing nets. Watson is a graduate of the Royal College of Art in the U.K, which will also receive £10,000 (US$16,000) as a result of him taking the top honors.
LiPo USB Charger Hookup Guide - learn.sparkfun.com Introduction We love LiPo batteries! They pack a walloping, power-supplying punch in a tiny, flat package. And, they’re incredibly easy to recharge, when that time comes. If you’re looking to make your project mobile and easily rechargeable, we can’t recommend this pairing enough: an 850 mAh LiPo battery and an embeddable USB LiPo charger. This tutorial will explain how to use the USB LiPo Charger with any of our single-cell LiPo batteries. European Space Agency working on using rocket fuel in cars At first glance, hydrogen seems like a brilliant alternative fuel for motor cars. It burns so clean that all it produces is water, it’s the most abundant element in the universe and it doesn’t need all those rare earth elements and heavy metals that electric vehicles depend on. The only trouble is, it’s very difficult to handle. In an effort to make hydrogen cars practical, the European Space Agency (ESA) and Austrian automotive manufacturer MagnaSteyr are adapting technology developed for the Ariane rockets so that it can be used in cars, as part of ESA’s Technology Transfer Programme. Hydrogen has a few problems as an alternative to petrol. It has a very low energy density, which means you need more of it to do the same job.
Portable Solar USB Charger -- Solar Panel; recommended max power output less than 6 W. -- 1N914 or similar diode This protects the solar panel by allowing current to flow only from the panel to the batteries (aka prevents discharge from the batteries onto the solar panel).