- Daniel at Cosmic Variance explains a very delicate gravity experiment, the results of which will be known by December this year; the experiment to measure the Lense-Thirring precession (apparently, of the order of 40 milli-arcseconds per year), and, according to Daniel, is one of the most technically ambitious projects ever launched into space. Take a look!
- Two mathematicians have analysed a toy (called Thalaiyatti bommai in Tamil–a toy that nods its head), and came up with the more generalised notions of self-righting objects (and, apparently, Indian star turtles carry one such object on their backs); via Seed.
- Chad Orzel at Uncertain principles explains Ohm’s law by looking at the microscopic behaviour of electrons in a solid and their response to an externally applied field.
- Andre at Biocurious gives links to Larry Moran’s articles on the mechanisms behind blood clotting (and also indicates the importance of such mini-tutorials in science popularization).
Have fun!