Imaging

How-To: Build Nob Yoshigahara’s “Dualock” cross puzzle

How-To: Build Nob Yoshigahara’s “Dualock” cross puzzle

I built one of these years ago from plans I saw in Slocum and Botterman’s New Book of Puzzles, and still delight in playing with it, so I was pleased as–geez, I can’t say “pleased as punch” and still respect myself in the morning, so I’ll just leave it at “really pleased”–to see this new tutorial from Instructables user Phil B about how it’s done. From the outside, the puzzle is deceptively simple: You can guess from Phil’s description that you’ve got to spin it, to win it, but there’s a devious twist. The book I saw it in had a picture of a clear plastic version that showed off how the mechanism worked, but that makes it rather too easy to figure out; the best way to appreciate Yoshigahara’s design is to build one for yourself, then give it to somebody else to puzzle over.

Touchscreen made of ice

Touchscreen made of ice

We’ve seen some pretty interesting touchscreen hacks over the past couple of years, but this one definitely stands out for it’s unique surface. A group of Finnish hackers from Nokia substituted the standard opaque white screen used in most rear projection touchscreens with one made of blocks of ice.

How-To: Use crutches as stilts

How-To: Use crutches as stilts

From a life of recurring knee injuries, I’ve got a closet full of crutches. They’re useless as soon as I’m ambulatory, so I’ve been poking around for reuse projects. Flip those crutches upside down and you’ve got a snazzy pair of crutch stilts! And, as one commenter points out, if you injure yourself trying them […]

A tiny screen font you can actually download and use, free

A tiny screen font you can actually download and use, free

A reader who enjoyed Monday’s post about Ken Perlin’s astoundingly tiny screen font , but was disappointed to learn that the font was not available for use, wrote to point out Domenico Mazza’s “Zepto,” which is available for free over at MyFonts.com. Shown above is a comparison of Perlin’s Tiny Font to Zepto, with the same text, in the same screen area, at comparable size and density. You can see that Zepto isn’t quite as readable as Perlin’s font, but still does pretty well.