The Crosley IcyBall (wikipedia) is a commercial early-twentieth century portable chemical refrigerator that runs without moving parts or electricity. Cooling is caused by the evaporation and re-adsorption of ammonia into a water-based solution, which is a spontaneous process that can be reversed by applying heat, as from a campfire. Authentic IcyBalls are valuable antiques, but […]
Julie Yu, a post-doc at San Francisco’s Exploratorium, has a really good collection of unusual home lab activities on her page, including a home column chromatography experiment using common materials, which is the first of its kind I’ve seen.
A research team at the Fraunhofer Research Institution for Electronic Nano Systems (ENAS) in Chemnitz, Germany, led by Prof. Dr. Reinhard Baumann, have developed a 1.5V battery that weighs less than a gram, is less than 1mm thick, and can be printed using a process similar to that used in silk screening. The new type […]
bbum’s posted the results of his latest project. It looks very tasty: The sweet essence of persimmon is both present in the nose and in the flavor. And the characteristic astringency of persimmon carries through, too, giving the wine a slight “pucker” at the end… And this was an exercise in patience. Despite an iffy […]
Artist Oscar Diez created this amazing calendar, made of different types of paper and special inks, which is carefully designed to slowly color in the days of the month by capillary action, in real time, over the course of each month. Via Boing Boing.
It turns out the same dyes that work on computer parts also work on Lego bricks, which are also, in my experience, seemingly never available in the color you need. Lego purists generally frown on paints and adhesives, but frankly being an active builder can get pretty expensive pretty fast, and a lot of that […]
If you even remotely care about the aesthetics of your computer, you’ve probably wished at some point that one or more of your components were a different color. For instance, I prefer my computers to be basic black all over, but more than once have been driven to install a beige part because it was […]
