Strange Looking Saab Viggen Plane at Waddington 2014. API-Engine-Oils-Specifications. API chart. SAE chart. EOS-1D Mark IV with EF 24-105 f/4L IS. 1/500 at f/4, ISO 200. What is Golden Hour? My absolute favorite time to photograph anything is a time of day called the Golden Hour. The Golden Hour occurs during the time just before sunset, and just after sunrise.
When the sun is lower in the sky, near the horizon, it must travel through more of the atmosphere, reducing the intensity of direct light and thus reducing the contrast in the scene. EOS 5D Mark II with EF 24-105 f/4L IS. 1/15 at f/14, ISO 100. The Golden Hour does not necessarily last an hour. EOS 5D Mark II with EF 24-70 f/2.8L. 1/2500, f/4, ISO 200. Golden Hour light is so good, I find it hard to convince myself to photograph at other times. Portraits at Golden Hour For portraits, I use the light in a couple of ways. The only portrait angle that will be difficult to shoot at the Golden Hour will be when your subject is completely backlit.
Golden Hour for Landscapes The Golden Hour is also perfect for shooting landscapes. Slow Cooker. Build this open source DIY wind turbine for $30. Getting started with home wind energy projects can set you back a pretty penny if you buy a finished product, but if you're a little bit handy and don't mind scrounging for materials and getting creative in the garage or backyard, you can try your hand at building one of these DIY wind turbines for about $30 in materials.
After all, it is #iheartrenewables week! We've previously covered Daniel Connell's open source concentrated solar collector plans, but now he's back with another great DIY renewable energy project, a vertical axis wind turbine based on the Lenz2 lift+drag design. Connell's design calls for using aluminum lithographic offset printing plates to catch the wind, which he says can be obtained cheaply (or possibly even free) from an offset printing company, and a variety of hardware and a bicycle wheel. "The turbine uses the ~40% mechanically efficient Lenz2 lift+drag design. Here's a little clip of the vertical axis wind turbine being challenged by strong winds: ChrisWantsToKnow. Silent rooftop wind turbines could generate half of a household's energy needs. Small wind turbines scaled to the right size for residential and urban areas have so far lived in the shadows of their larger wind-farm-sized counterparts. The power output has been too low for a reasonable return on investment through energy savings and the noise they produce is louder than most homeowners can deal with.
A Dutch renewable energy start-up called The Archimedes is working to solve both of those problems in a new class of small-scale wind turbine -- one that is almost silent and is far more efficient at converting wind into energy. The company states that the Liam F1 turbine could generate 1,500 kWh of energy per year at wind speeds of 5m/s, enough to cover half of an average household's energy use. When used in combination with rooftop solar panels, a house could run off grid.
"When there is wind you use the energy produced by the wind turbine; when the sun is shining you use the solar cells to produce the energy," The Archimedes CEO Richard Ruijtenbeek said. Home Made Wind Turbine. Want to build a wind turbine for your home? I have gathered several PDFs for those who want to build there own wind turbines and have links to them at the bottom of this post. They cover all types of wind turbines and issues that you may run in to such as wind speeds and noise.
From reading these my self I have found that the Hi-VAWT takes all into consideration and is easy to replicate. In VENTURI horizontal axis Wind Turbines wind turbines the blades rotate and describe a circular surface. The rotor extracts the energy from the air flowing through this rotor surface and has a theoretical maximum efficiency of 59 according to Betz’s law. Making a simple Savonius wind turbine. By Lance Turner There are many situations where you might need a small amount of electricity, for instance running gate openers, safety lights, water level indicators and other low-power devices.
While solar would seem like the ideal solution, quite often this is not possible due to location and shading problems. Just such a situation arose when I decided to make our new gates automatic. There were just too many trees in the way for solar power to work, and I didn’t want to run power some 30 metres or so from the house, as it would have meant digging a trench for the cables, which is almost impossible in our rocky ground. Why have automatic gates anyway? Anyway, I decided to provide power to the electric gate openers from a small wind turbine.
The gate opener system itself is a home-made job, using car windscreen wiper motors driving long brass threaded shafts. Too much turbulence I briefly thought about what type of turbine I could install and how it would look. Making the turbine The mast. Homemade Wind Generator - Learn How Wind Power Works.
Tesla Technology: 5 Bladeless Turbines About To Revolutionize Energy Production. Tesla Technology: 5 Bladeless Turbines About To Revolutionize Energy Production www.endalldisease.com “Every home in America can run on wind energy. In fact these units can be installed on existing power poles in rural areas, to catch the wind and send its energy back to the plant.” - Raymond Green, Inventor In 1913, Inventor Nikola Tesla patented a bladeless steam turbine that he claimed was the most efficient and the most simple rotary engine ever designed.
One century later, we now have all the materials needed to build Tesla’s turbine, and in 2010, a patent was issued to a company called Solar Aero for a wind turbine based on the Tesla design. Current wind turbine technology with rotating blades is both inefficient, and causes noise pollution, which has been reported to have detrimental health effects on residents living nearby. Bladeless Wind Turbine #1: ‘The Saphonian’ Bladeless Wind Turbine #2: ‘The EWICON’ Bladeless, funnel-based wind turbine claims huge efficiency gains | Science! How I built an electricity producing wind turbine. Several years ago I bought some remote property in Arizona. I am an astronomer and wanted a place to practice my hobby far away from the sky-wrecking light pollution found near cities of any real size.
I found a great piece of property. The problem is, it's so remote that there is no electric service available. That's not really a problem. No electricity equals no light pollution. However, it would be nice to have at least a little electricity, since so much of life in the 21st century is dependent on it. One thing I noticed right away about my property is that most of the time, the wind is blowing. Let me state up front that I probably won't be able to help you out much if you decide to build your own wind turbine.
Since no one seems to be reading the FAQ, I will answer the No. 1 question I get many, many times a day right here up front. Update: Here is a video of the wind turbine in operation. I reduced the project to just five little systems. . Homemade Wind Generator - Renewable Energy. Are you headed for the beach or going camping in the mountains? Maybe you live on a boat, visit a remote cabin or you're living off-grid. Electricity is yours for the taking as long as the wind is blowing... And you can get it on the CHEAP with an easy homemade wind generator. Light up that storeroom, barn or use the generator to keep all your vehicle batteries charged too. My off-grid cabin's electricity comes from solar and wind power, stored in 6-Volt golf cart batteries. A charge controller and battery minder keeps my system from under-and over charging.
The whole shebang cost me less than $1000 and I have lights, fans, TV and stereo, refrigeration, and a disco ball that goes up for special occasions. If you can turn a wrench and operate an electric drill, you can build this simple generator in two days: one day of chasing down parts and one day assembling the components. My Wind Generator Parts List Car/Truck Fan Clutch Assembly - GM 1988, 350 motor -used. Canon teased in February it was working on developing a compact camera with a 25x optical zoom and a one-inch-type sensor to add to its G-series line-up. The firm has now revealed more details about the 20-megapixel PowerShot G3 X which will be released in July and offers a massive 24-600-mm equivalent lens.
The enthusiast-focused camera will also boast a tilting LCD touchscreen and a hot shoe. The PowerShot G3 X is all about its lens, it covers a whopping 24-600-mm equivalent which means it has massive zoom potential. However, a variable maximum aperture of F2.8-5.6 means it will have limited uses at longer telephoto lengths. The chances are you'll hit the F5.6 maximum aperture well before you get to the 600-mm equivalent focal length. Inside the new shooter there's a one-inch-type 20-megapixel back-illuminated CMOS sensor. The camera can also shoot at a reasonable speed of 5.9 fps (frames per second) or 3.2 fps with autofocus. You can check out a promo video for the new camera below. Lubricants. API chart. A team of five photographers has created what they describe as the world's highest definition panoramic photograph by stitching 70,000 digital images together to create a 365 gigapixel photograph.
Recorded using a Canon EOS 70D with the EF 400mm f/2.8L IS II USM lens on a 2x converter, the picture took 35 hours of shooting over the course of 15 days just to capture. A further two months were required in post-production to stitch the images together, creating a 46 terabyte finished product. The project, called in2white and led by Italian photographers Filippo Blengini and Alessandra Bacchilega, took the team to altitudes of 3500m/11,482ft and temperatures of -10°C as they recorded every detail of Mont Blanc, the highest mountain in the European Alps, and the surrounding landscape.
Although the view recorded is extremely wide, it is possible to zoom in to clearly see two climbers on the rock face. The whole panorama, with zooming and panning tools, can be seen on the in2white website.