Bill Beaty has created a neat way for magnets to be levitated. If you build it please be cautious since you could loose your hand if you aren’t careful. "While working on science museum exhibits in 1990 I came up with the above idea: it is known that a spinning metal disk will lift and fling a strong magnet. Therefore, metal rods with opposite spin will lift a magnet
This DIY Hovercraft Project was done on a budget and the results are very good based on the amount of money that was put into it. "The workings of a hovercraft are fairly straightforward: one high-power motor with an airplane propeller forces air down through the hole in the center, which pushes the bottom of the hovercraft off the ground. This greatly reduces friction, allowing the hovercraft to scoot
If you want to have the coolest headphone setup on the block have a look at this Tube Headphone Amplifier project. When everyone else simply plugs their headphones into a transistor amplifier you can enjoy the rich sound that comes from a tube amp (at least that is what some people say). "The tube heater draws 150mA at 12.6 and the whole amp draws 580 mA at startup and
There is a new version of the Firefly that was featured yesterday. The new version was built on a manufactured PCB and looks very good! Full build details are provided. "Each firefly has a value that stands for the power to flash. This value rises over time. If the power reaches a certain limit, the firefly flashes and the power is reset to zero. If the firefly detects another
The guys over at Hak5 have created a fun Graffiti Wall, this wall takes entries from the web and projects them on a huge display on their wall. The text display is just the beginning, games are planned in the future! Give the wall a try! Have a look at the code that makes it tick. "Hey guys, this is the code I whipped together to make the Hak5
If you are looking for a product that keeps you safe while in your car this In-Vehicle Blind Spot Detection System is sure to help. Download project. "In the presence of any approaching vehicle these high intensity pulsed beams get reflected back to the vehicle and is detected by Infrared sensor TSOP 1738.Whereas in the absence of any approaching vehicle no reflected Infrared beam is present and output of
Trossen Robotics just completed their latest project contest, the Xr-B3 didn’t win but it is a very cool creation! "He is powered by an AVR ATMEGA324P micro controller on a custom board that I made. He is using an XBEE module to communicate with my PC (and eventually with other robots). Onboard sensory includes: 2 Sharp IR sensors (for wall following and obstacle detection), an SRF-05 sonar sensor and
