Month: February 2006

Sound following LEGO robot

Sound following LEGO robot

Matthew writes – “There are a lot of LEGO Mindstorms robots out there, but I finally found the best. Nic_1 is a Johnny V impersonator that detects the direction of sound and follows it. Detection is accomplished by calculating the cross-correlation of two audio signals from the binaural sensor. The data is used to estimate […]

Cross-Stitch of Sistine Chapel

Cross-Stitch of Sistine Chapel

This immense 40″ X 80″ cross-stitch recreation of the Sistine Chapel took 10 years for Joanna Lopianowski-Roberts to create. Joanna used 1,809 different color combinations with a total of about 628,296 stitches! Wow! She documents the entire process in her self-published book (on lulu.com) with 45 full color individual patterns for each scene. [ via […]

Homemade working 8 bit computer

Homemade working 8 bit computer

John has a great round up of some retro computer design – “A working eight bit computer made out of Relays! For some time amateur computer designers have been getting ‘back to basics’ and building their own computer designs with individual TTL logic gates wire wrapped together. One determined experimenter even built his own out […]