Check out the awesome acrylic LED light DIY for your car. (It’s in Korean but you should be able to manage just with the pictures.)

Looks really cool… a simple but great idea for acrylic LED stuff.

via pagi.co.kr

Here’s a cool little DIY on how to run an AVR MCU on battery made out of lime!

Some of the fruit and vegetables we eat can be used to make electricity. The electrolytes in many fruit and vegetables, together with electrodes made of various metals can be used to make primary cells. One of the most easily available vegetable, the ubiquitous lemon can be used to make a fruit cell together with copper and zinc electrodes. The terminal voltage produced by such a cell is about 0.9V. The amount of current produced by such a cell depends on the surface area of the electrodes in contact with the electrolyte as well as the quality/type of electrolyte.

via

Wow, check out this cool DIY on a PC case furniture! Although it’s in Korean, you should be able to follow the examples with pictures.

via pagi.co.kr

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Check out this cool video of the human body in 3D anime!

via dabomb.tv

Wow, check out this cool Monty bike this guy made!

This is a small, simple recumbent bicycle. With its 16″ wheels Monty is a portable vehicle which easily can be dismantled. I wanted a bike that I can bring on trains, buses and other means of public transport. Since there are hardly any small foldable recumbent bikes on the market I decided to build one myself.

I’ve noticed many people using metal detectors on the beach lately to find treasures or junk but here’s a great way to make one of those yourself!

BFO ( beat frequency oscillator ) metal detectors use two oscillators, each of which produces a radio frequency. One of these oscillators uses a coil of wire that we call the search loop. The second oscillator uses a much smaller coil of wire, and is usually inside the control box and is called the reference oscillator. By adjusting the oscillators so their frequencies are very nearly the same, the difference between them is made audible as a beat note, this beat note changes slightly when the search loop is moved over or near to a piece of metal. It has been found in practice best to make the search oscillator fixed say at 100khz and to arrange for the reference oscillator to be adjustable 100khz plus or minus 250hz. This gives a beat note of 250hz to 0 to 250hz. The beat note disappears or nulls when the two oscillators are about equal. This type of detector is most sensitive when the beat note is close to zero, about 5hz ( motor boating ) any slight change being noticeable.

via

Oh, check out this cool napkin folding DIY! I’ve always wondered if I could learn to fold napkins like those pros. It seems like they don’t have any animal ones though…

Check out the wearable LED light you can make!

The Wearable Light kit is a leather cuff with LEDs embedded inside. The Velcro functions as a switch so the bracelet only illuminates when it is in active use. It is a kit designed as an investigative tool to gain insight into DIY culture. Marrying sewing techniques with electronics, a new aestheticized vernacular for constructing simple circuitry is developed. The kits were deployed to crafters in the U.S., Canada and UK.