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It is quite amazing how much energy is in the sun. Using the energy that strikes a satellite dish the guys at Green Power Science can boil 20 ounces of water in 90 seconds. In the video Dan holds up a piece of wood into the focal point and it immediately begins to smoke! That is some serious energy being focused there. “The starting temperature was 80f (27 C) and a full boil was obtained in 90 seconds (+-10 seconds). The dish is a 10 feet (3 Meters) diameter with a large acrylic mirror for the center. Focal length is 5 feet (1.5 Meters) from the base. The focal point is 1″ diameter from the acrylic mirror and 4″-8″ diameter from the satellite dish. The vacuum tube holds 20 ounces and it was full.” |
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This downhill machine looks like so much fun but I would hate to see what happens if a deer walks across the path of the driver, those small brake levers wouldn’t stop it very quickly when you build up the type of speed we can see in the video. The video above is of a person who went right down not using the brakes at all. “This is a single-pipe alpine coaster in Mieders, Austria. You reach the summit via a cablecar and then sit on a small car with a brake lever and off you go. Having ridden it once using a little braking, I decided to try it a second time without using the brakes.”
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This thing looks like a ton of fun to fly. I am not sure if a simple helmet would be sufficient for me to take the e-volo for a spin though. It’s one thing to fly a small toy multicopter around using a remote but when it comes to strapping yourself into the center of one that weights in at 90 kg! I hope that the e-volo is what it takes to make the flying car a reality for the everyday person. “The e-volos sixteen propellers allow it to take off and land similar to a helicopter. Its massive plus points compared to a helicopter are the simplicity of its engineered construction without complicated mechanics and its redundant engines. Should anything go wrong, e-volo can still safely land even if up to four of its sixteen motors should fail. Flight time can last between ten to thirty minutes, depending on the payload and the capacity of the lithium batteries. With an empty weight at 80 kg (including batteries), e-volo fits into the class of ultralights. Thomas Senkel developed the concept as a graduate physicist. He did the complete mechanical and electrical construction of the e-volo multicopter. His specialties are research & development of electric drives and ultralight vehicles and aircrafts. He is an enthusiastic paragliding and ultralight pilot. Stephan Wolf developed the software from scratch, which controls the e-volo’s onboard flight computer. He has more than 25 years of experience developing core drivers and embedded software development in the industry. Alexander Zosel is responsible for marketing, sales, and public relations. He has developed several patents and utility modules and is an avid paragliding pilot and flight instructor.“
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If you have see the DIY Pulse Laser Gun or the Iron Man Repulsor Light Laser Glove Project then with one look at this Laser Targeting Wrist Mounted Crossbow you would know that Patrick Priebe was the mad man behind it. Watch the video below to see it shooting balloons, cans and light bulbs. I would think that a micro video camera mounted on the glove would make for some good looking video. Via: Make, Geeky Gadgets “Selfmade crossbow. Solid metal, as always. Started as a weekend-project, as always. Took 10 days. Every part is homemade. Bolts are made from Carbonfibre-tubings with brass and steel tips.”
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Luis Cruz just graduated from high school but don’t let his young age fool you, he is already developing some very serious systems. His low cost eye tracking system uses Electrooculography to detect the movements of a person’s eyes. This then allows a person to control an electronic or computer system just by looking around. He has also received some CNN coverage, see the CNN video below. “The eyeboard is an open source project that I built in order to help people with disabilities. My circuit detects the eye movements using the technology called “Electrooculography”. Which consists in detecting the resting potential that exists between the retina and the cornea by using skin electrodes around the eyes. Using analogue and digital electronics, and applying the correct interface to this concept, I can control anything I wish just with the eyes!”
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Happy Halloween everyone. This Devil’s Brain in Blood Sauce is something you can make to creep out some of your Halloween guests! Thanks to our friend Rick Crammond for making it. “Ingredients: Cauliflower “Brain”: “Blood” Sauce:
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So you picked up the new iPhone 4S. First thing most people do is personalize it by adding a case that suites them. Instead of picking a leather or plastic case why not move up to a metalic case. This 24 Karat Gold Crystal iPhone 4S Bumper is sure to fit the bill! Okay, it is actually not solid gold since 24 karat gold would be to soft for a iPhone case but it has been plated in gold and had a bunch of crystals on it. This might be the thing to get now that the I am rich iPhone app is no longer available. Via: The Rich Times “Crystal Rocked have taken a unique approach to creating these gold covers. Each bumper is dipped in 24 karat gold for 4 times (plated) to ensure that it is coated with the best of finishes. Up to 200 individual crystals are then set onto the case. The cost for this bumper comes to 300 pounds ($480) and they are directly available for purchase from Crystal Rocked. They can also be purchased from Harrods of London.” |
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