Month: February 2008

Mobile Internet LEGO Robot

Mobile Internet LEGO Robot

Embisys has an Internet connected LEGO robot. What makes this a little different is the Nokia cell phone, which passes all the data via a mobile packet data service to an Ajax based web page. It can send pictures & receive commands anywhere there is a cellular signal. TeMo is a tele-operated mobile Internet robot. […]

Rebuild a Roomba battery

Before you buy a replacement battery for your dead Roomba, you might want to consider rebuilding the pack yourself. You can get a couple of 6 cell Sub-C NIMH packs for less money and more amp hours than the stock battery. I’ve been wondering whether it would be economical to just rebuild the battery pack, […]

Light record

Matt Mets made this “Light Record:” I am using some photocells to read the intensity of light that shines through a sheet of paper, upon which I have encoded an image using shades of grey. By spinning this paper around and shining a light through it, the image can be viewed on an oscilloscope. The […]

Experiment with a virtual neuron

Over at the Mind Hacks blog, Vaughan writes: The Children’s Hospital Boston have created a fantastic ‘virtual neuron’ which allows you to explore the basics of neural transmission with an interactive flash demo. Strictly speaking, of course, it’s designed for children, but it’s remarkably good fun whatever your age. Once you’ve got the demo window […]