Science

DIY science is the perfect way to use your creative skills and learn something new. With the right supplies, some determination, and a curious mind, you can create amazing experiments that open up a whole world of possibilities. At home-made laboratories or tech workshops, makers from all backgrounds can explore new ideas by finding ways to study their environment in novel ways – allowing them to make breathtaking discoveries!

How-To:  Build a star-tracker for your camera

How-To: Build a star-tracker for your camera

The best stellar photography requires long exposure times to capture the dimmer stars. The problem with long exposures of the night sky, of course, is that it moves. Or rather, it appears to move. So if you don’t have some way of keeping your camera pointed at the same location over the course of the exposure, you get “trailing.” Eric Chesak built this impressive star-tracking camera mount bracket and won a Design News contest back in March with it.

Cleared and stained animal specimens

Cleared and stained animal specimens

Depending on your tolerance for preserved corpses, this may strike you as incredibly cool or incredibly creepy. Maybe a little bit of both. Personally, I lean toward the “cool” side. “Clearing and staining” is actually a very old technique in anatomy and biology in which a dead animal is treated with a series of chemicals that simultaneously preserve it, render its soft tissues transparent, and stain its skeletal and nervous systems different colors. The resulting preserved specimens are both scientifically useful and, often, strikingly beautiful. These pictures are from a Japanese gallery; here’s an English-language gallery of mutant frog specimens that are also pretty amazing. [via Core77]

Homemade blow-molding gun

Homemade blow-molding gun

Blow-molding (Wikipedia) is an thermoplastic forming process in which a hot polymer pre-form is injected with gas to press it against the inside of a hollow mold. It’s how most plastic bottles are made. Designer George Fereday got annoyed that the primarily-industrial process was so inaccessible and decided to build his own DIY version, which extrudes pre-melted polymorph plastic through a custom die attached to a normal caulking gun to create the hollow pre-form. There’s more detail over at Core77.

Arduino-based scooter computer

Arduino-based scooter computer

Kurt Schulz of Cincinnati, OH, wrote in with with his Scooterputer project, which uses a Duemilanove Arduino, a custom “sensor shield” and a Liquidware touchscreen OLED display to add functionality to his whip: * Battery voltage indicator * Time and date * Temperature * Lean gauge with resettable max L-R indicators * Current speed * […]