Make: Online
with the editors and authors of MAKE Monday September 6, 2010
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Craig Kaplan and Robert Bosch turned the Traveling Salesman Problem - a famous and important problem from computer science - in to a way of rendering halftone images, called TSP Art.
The goal of the Travelling Salesman Problem (TSP) is, given a list of cities, to determine the shortest tour that visits each city exactly once. The ability to solve this problem is important in a variety of fields, from logistics planning to electronics to DNA sequencing. Kaplan and Bosch generate "cities" with a density proportional to the density of an image and then apply the TSP. Two properties of the approximate solution they find make this visualization work -- first, the density of the routing tends to mirror the density of the cities (and thus the density of the original picture), and second, the path never crosses itself (which gives the result a unique look).
TSP Art: short version or the full paper (pdf).
via hacker news
Posted by John Maushammer | 9:46 AM in
Arts, Photography |
| Discuss (0)
Robert Schneider modified a Mindflex EEG toy to become the Teletron, a theremin that plays a Moog analog synth via thought control. The second video shows how to do it. [Via Pitchfork, thanks Jeremy!]...
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Thing about folding tables is, the tops--which are commonly made of cheap particle board--tend to wear out much faster than the legs--which are usually made of steel. So the world is full of old folding tables with mutilated tops and perfectly serviceable legs. If you know where to look, good-looking hollow-core doors can be had for a song, and make for great replacement tabletops for those old folding legs if you know how to mount them correctly. Here's how I did it, using XRS Molly bolts with expanding adhesive foam blown in for reinforcement.
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