brainwagon

Metafilter pointed me at Xaphoon – The Maui Xaphoon (Bamboo Sax or Bamboo Flute), another website with an unusual music instrument. This is cute because it’s a very small, portable instrument with a terrific sound which closely approximates a full saxophone. They make a $60 injection molded ABS version which is called The Pocket Sax. […]

While perusing a random copy of Scientific American from June 18, 1887, I ran across an interesting little nugget of mathematical niftiness: Lewis Carroll’s technique for computing the day of the week for any date in your head. Cool! It’s not quite as simple as the Doomsday algorithm, but then we are talking about Lewis […]

At least one of my occasional readers is interested in homebrew musical instruments. Having listened to the example mp3’s, I’m not sure that these instruments qualify, but here are instructions for building a tuba and other instruments out of plywood. The overall tonal quality makes you pine for the melodic sounds of the bagpipe and […]

In keeping with the earlier paper model theme, I give you Jun Mitani, who has a paper in this year’s SIGGRAPH conference on turning polygonal meshes into paper models, with some examples shown here on the right. His other papers appear interesting too.

Another cool link from the Geometry Junkbox: George Hart’s instructions on building Soda Straw Tensegrity Structures. I can see myself wandering off to the store to buy soda straws, paper clips and rubberbands tonight.

I like arts and crafts, particularly those with a mathematical bent. Wholemovement – The Work of Bradford Hansen-Smith shows what cool stuff you can do with paper plates. Be sure to read the commentary about the “wholeness of circles” and the like. I’d like some of whatever he’s smoking. Found this while perusing the terrific […]

I recall seeing the plans for a simple walking, balancing robot constructed out of TinkerToys, and while surfing around aimlessly I ran accross it again. I thought I’d go ahead and archive the paper which described it just for fun. It seems like the kind of toy you should just go ahead and build so […]

I ran across Games and Tools – The Deck of Boards while reading rec.games.board. The author designed a way to create boards for many interesting boardgames by using a magnetic board and various marbles, washers and easily available pieces. Kind of neat, and a good way to get boards for games like Hex.

While browsing through sweetcode’s archives I found an interesting link to Andrew Plotkin’s program boodler. Boodler is a soundscape generation tool written in Python. Basically it allows you to generate sounds by taking sample sounds, modifying them and playing them using independently scheduled agents. It is a pretty nifty little gadget, and comes with examples […]

The University of Alberta has a very cool group that does research into gameplay. Recently they solved Awari, a very old game that is still very common and popular in Africa and the West Indies. They did it by brutally enumerating all possible board positions via retrograde analyis on a cluster of 144 PCs in […]