NASA image web app for iPhone
Todd Barnes at Toughturtle has some interesting web apps for the iPhone, including the often breathtaking Nasa Image of the Day.
Science
Fun with POV and Lissajous figures
This week, EMS Labs has a nifty piece on Lissajous figures which Windell was able to generate using an LED display on one of the EMS Labs’ breakout board business cards suspended from an oscillation rig built from a file folder frame, wooden dowels, and BBQ skewers. Lissajous figures are interesting curves that occur in […]
Lensless micro-microscope on a chip
Fig. 1 (a) Architecture of the optofluidic microscope (OFM); set of three arrows: illumination; single arrow: flow direction. (b) Photograph of the OFM prototype compared with a U.S. quarter. The actual nanoaperture array is 600 µm long. (c) The top view of the OFM; denotes the isolated aperture; denotes the corresponding aperture, as explained in […]
Black swallowtail caterpillars
Sharon Stiteler blogs as Birdchick – she’s an avid birder and beekeeper, and is raising black swallowtail butterflies. She has some great videos of caterpillar activity – the top video is a caterpillar shedding its skin, the next one is a caterpillar sticking out its stink horns, a defense mechanism. Apparently raising black swallowtail butterflies […]
Leeches!
Leeches are enjoying a well-deserved resurgence in popularity now that modern medicine has discovered their usefulness in speeding wound healing by increasing blood circulation. This clip is a promo piece for Nova Science Now’s episode about leeches, with Mark Siddall, “lord of leeches” at the American Museum of Natural History. There’s lots more leechy goodness […]
Tom Lehrer – “The Element Song”
By popular request . . .
Kevin Kelly reviews our home chemistry book
Over on Cool Tool, Kevin Kelly has written a great review of the
