Spoke-o-dometer Bicycle POV Speed Display

spokepov

[Rory Hyde] and [Scott Mitchell] are exploring several projects that add more information to public spaces. The first is the Spoke-o-dometer a persistence of vision device that can display bicycle speed and distance traveled. To develop the device, they first bought a few POV kits to test out. They decided to build their version using an Arduino. Once they had the display proof of concept working, they added a hall effect sensor like the SpokePOV so they could determine speed and orient the display. Check out their project site for plenty of example code and development details.

[via ladyada]

Flying Cars A Reality

[Stillboy] alerted us to a flying car that runs on biofuel. Flying cars have been the mainstays of science fiction and technological wish lists for years, but they elude production, as expenses, fuel, and gravity get in the way. [Gilo Cardozo], a paramotor manufacturer, managed to overcome those hurdles by thinking simply. He attached a paramotor to his car, which is powered by a Yamaha superbike engine and a gearbox from a snowmobile. His modified Rage Motorsport buggy is street legal in the United Kingdom, and in the air, can get up to 80 miles per hour. It will be fully tested in January, when he and his chief pilot and expedition organizer [Neil Laughton] drive and fly the car to Timbuktu.

Other flying cars are also in the works. DARPA recently announced their Personal Air Vehicle Technology project that will hopefully lead to a military-suitable flying car that can get up to 60 miles per hour on the ground and 150 miles per hour in the air. Moller International claims that a flying Ferrari is in the works, and could be available for purchase within two years. Are jet packs next?

Hacking The MINI Cooper

cooper_power

[war6763] sent us this hack to power an amplifier in a MINI Cooper. Apparently, aside from being unconventionally handsome, they’re also unconventionally wired. Amplifiers are generally wired to the ignition or stereo and turned on when the car is turned on. Due to some strange wiring, this just isn’t possible in the MINI Cooper. Some people use the cigarette lighter to power on their amplifier, but [war6763] wanted something that left his cigarette lighter free for other things. He built a circuit that monitors the cars built in USB input line and turns his amp on and off accordingly. The entire unit cost around $10.00. You can see the video demonstration after the break.

Continue reading “Hacking The MINI Cooper”

Dean Kamen’s Stirling Engine Car

kamen_car

[Dean Kamen]’s company, the people behind the Segway, have created a hybrid car that uses a Stirling engine instead of a standard internal combustion engine. Stirling engines are closed cycle, meaning heat is applied to the outside of the cylinder walls. They are generally more efficient than standard car engines, but haven’t been used much outside of industrial applications. We suspect that the drivetrain arrangement is similar to the Chevy Volt where the engine is used to charge batteries which are in turn driving an electric motor. This is different from modern hybrids that can have either electric motor or gas engine driving the wheels. The article is unfortunately full of classic [Kamen] hyperbole and minimal detail. He calls the Stirling engine “an insurance policy” for the electric car since it can recharge the battery. That’s right, folks. If you run out of juice, you can put gas in the car. I doubt many Prius owners will fall out of their chair over that. Being a Stirling engine, we’d be more impressed if you could charge the thing by rubbing warm toast on it.

[via Make]

TIME’s Best Inventions Of 2008

tesla

Attempting to put our past behind us as quickly as possible, TIME has released what they feel are the best inventions of 2008. While there’s some pretty wishy-washy lab-only stuff on the list, we’re glad to see a lot of cool hardware made the cut. Some of our favorites are: The Tesla roadster proving electric cars can be fun. IBM breaking the petaflop barrier with LANL’s Roadrunner. The Large Hadron Collider for getting everyone scared about physics all over again. Have a look at the list for many other tech highlights from this year.

Commercial Self-balancing Unicycle

[youtube=http://www.youtube.com/watch?v=3-9mYCXNshQ&fmt=18]

Focus Design sent us a video of their self balancing unicycle (looks like they’re taking on Focus Features too). The electric machine moves at 8MPH and lasts 1.5hrs on a single charge. It only weighs 24.6lbs. They say that new riders only need about 2hrs. practice. They’re building ten units to start for $1500 each.

Electric unicycles are nothing new to our community. We’ve long been fans of [Trevor Blackwell]’s electric unicycle. [Trevor] spent several months learning how to ride a regular unicycle before he could properly debug the electric version. There are several other designs out there: The Einrand-Fahrzeug has a wide wheel to make balancing easier. The eniCycle includes a steering mechanism. The Uniquecycle has a brushless motor in hub for a compact design. We did a roundup back in July that covers these plus many other motorized unicycle concepts.

Electric Bicycle

[youtube=http://www.youtube.com/watch?v=6wNo5SM2da4&hl=en&fs=1&rel=0&color1=0x3a3a3a&color2=0x999999]
[garygadget15] in the UK has an interesting youtube page showing an electric bicycle. On his page titled, saving money the “green way” he has replaced his commuter car with one of these electric bikes. He then videos the commute with both to compare the results. The DIY electric bicycle kit he uses is made by Cyclone comes in multiple wattage’s ranging from 180 watts to 1500 watts where they do a great job of showing the conversion steps. They’ve got enough detail that you could fab your own from salvaged parts if you felt like it.