Technology

LED lamp art

LED lamp art

A French designer named Kei Yamamoto has created this uber LED lamp which is 20 times the size of a normal LED bulb. He writes: Not only does the product show the beauty of the LED structure, but it also creates a special visual effect on the ceiling, 12 LED bulbs are refracted through the […]

Add memory to your old Apple relics

Add memory to your old Apple relics

This hack shows how to add a compact flash memory card to an Apple Powerbook 150 using an adaptor board that allows the card to be plugged into a standard IDE bus. Pretty cool if you are nostalgic about breathing life back into your old laptop-turned-doorstop. Replacing the Internal Disk of a Powerbook 150 with […]

Baking pan amp

Baking pan amp

I’ve seen a lot of creative project boxes in my day, but never a baking pan. This is a three-resistor LM3875 gainclone amp housed in a cast iron pan mounted to a thick cutting board. The whole business weighs 26 lbs. LM3875 Gainclone Amp – [via] Link

Arduino-controlled kegerator

Arduino-controlled kegerator

David Fowler of uC Hobby writes: Sean shows us how to use an Arduino for kegerator temperature control. A Kegerator is a beer keg built inside a refrigerator. Anyone want a cold beer? He discusses the home brewing process and how a microcontroller can be applied to this and many other sensing and control tasks […]

Piezoelectric concept backpack

Piezoelectric concept backpack

Researchers at Michigan Technological University, Arizona State University and NanoSonic Inc. are working on harvesting the ambient energy of walking and carrying a backpack with polyvinylidene fluoride (PVDF), a nylon-like material with piezoelectric properties. This would be great for multi-day hiking, since you wouldn’t have carry heavy batteries to keep your GPS or cellphone juiced! […]