Technical Information Stirling Engines: How They Work (Non Technical Terms) Graphic courtesy of Dr. Israel Urieli of Ohio University. The engine estimate derived from the Beale equation is shown below. The results obtained suggest an initial configuration of a two cylinder alpha engine of 185 cubic centimeters swept volume operating at 1000 RPM with an average internal pressure of 147 psi.
Seeing Forests for the Trees and the Carbon: Mapping the World’s Forests in Three Dimensions : Feature Articles By Michael Carlowicz Design by Robert Simmon January 9, 2012 Trees cool and moisten our air and fill it with oxygen. They calm the winds and shade the land from sunlight. Tutorial on the Rotary or Swing Arm Voice Coil Actuator used on modern Hard Disk Robert Thibadeau, Ph.D. Another Saturday Afternoon on the Internet Borrowed Heavily from The Voice Coil Actuator A Voice Coil Actuator is a very simple positioning device that utilizes a coil of wire in a permanent magnetic field.
Solar Water Heating Pump Controller - Water Build an electronic pump controller for a solar water heating system home > water | solar | electronicsA solar water heating pump controller is a key component in most solar water heating systems (DIY or otherwise). The controller is there to turn the pump on when the fluid in the solar panel is hotter than the water in the hot water tank (or swimming pool), and keep it turned off at all other times. First of all, it is worth noting that there are solar hot water system designs for which a controller is not required.
Body Theory & Practice of Electromagnetic Design of DC Motors & Actuators George P. Gogue & Joseph J. Stupak, Jr. Applied Sciences Bright and shiny renewable energy. The Zoetrope on a temporary stand. The Zoetrope Status: Complete Attachments: (To download, right-click the file and select "Save Link As") Construction Guide (26.4MB), (Mirror), (Djvu), (Compressed) Electrofuels Bump Up Solar Efficiency [+]Enlarge OPX Biotechnologies molecular biologist Matthew Lipscomb examines a colony of bacteria the company is using to extract electrons from hydrogen to produce fuels and chemicals from carbon dioxide. Credit: OPX Biotechnologies Electrofuels bypass photosynthesis, offering a potentially more efficient means to convert sunlight into fuels. Photosynthesis is nature’s way of storing energy from the sun in the form of electrons in chemical bonds. Humankind has long taken advantage of this process by using fossil fuels and biomass to produce heat, transportation fuels, and electricity.
Naturally Innovative There is a close relationship between light and plant development. You should know that some plants grow quite differently depending on the light intensity but also in terms of the composition of light, this is the spectral composition. The action of light on plants is divided into two: Energy source (amount of high energy, plants specificity) ChlorophyllAccessory pigments
Model 2 Software - Fab @ Home From Fab @ Home (Redirected from Fab@Home:Software ) The Model 2 separates print planning software from printer control software. This distinction will allow for greater flexibility moving forward. Two options are available for print planning: FabStudio is capable of converting one or more STL or AMF files into printable paths, generating a FAB file ; svg2fab is a bare-bones utility that outputs a FAB file from a vectorized graphics image (SVG). FabInterpreter controls the printer and uses the information in the FAB file to print the object.
micro-hydro power bucket - Vancouver Hack Space Hello Hackers! For a long time I have been fascinated by the thoughts of free and renewable energy. My inspiration to build this device came from a cabin in the woods which was surrounded by tall trees which blocked out the sun and the wind. This left me unable to put up solar panels or a wind generator. There is however a small creek which runs on the property.
Intelligent-Gro II Intensity Series 180w LED Grow Lights- - Intelligent Gro LLC General Info: Minimum height of 14"-16" from the canopy during flowering. This size panel is designed to replace a 250W-400w HID light fixture. Intelligent Gro Custom Programmable Controller not included with LED Grow light. Remember to order your custom Controller in shopping cart. COVERAGE AREA IS 2' X 3'. Illuminate your garden with Cutting Edge LED chip Technologies: High quality BIN LED's to ensure your light output is of the best intensity, color and coverage for your plants.
Fab@Home:Assembly Tips - Fab @ Home From Fab @ Home Welcome to the Fab@Home Assembly Tips Page On this page you will find hints, tips, and tricks to make assembly of your fabber easier, and to improve the quality of your completed fabber. Threaded Inserts for Thermoplastics Both the Model 1 and the Model 2 use threaded brass thermoplastic inserts to put strong threads into the acrylic parts for bolting parts together. These inserts need to be "melted" into the acrylic, using a soldering iron.
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Joule thief circuit powering a compact fluorescent lightbulb Following the tips outlined below, you can use the joule thief circuit to power a compact fluorescent lightbulb (CFL) using just some AA batteries. The approach below is popularly known as Jeanna's light ( here's Jeanna's youtube channel.) In the photos below you can see I've put it in a soda can and I'm using it to read by!