January 12, 2016 at 03:56AM

Tody I Learned: 1) ...a few soldering tips. For instance, you can use cool, thin-nosed pliers to scrape away hot solder in connections you don't want. Also, solder apparently tends to flow from cold to hot. Also, clamps are really, really useful when soldering. 2) Mono-winged aircraft (small ones, at least) require fewer control surfaces than large ones. 3) There is a relationship between the stiffness of different sequences of DNA and the stability of histone complexes* that form around those strands. The stiffer the strand, the more likely it is to unravel from its attached histones. Also, apparently cytosines (C bases) are by far the most likely to make a sequence more flexible. * histones are globular proteins whose primary purpose is to get wrapped around by DNA. This sequesters the DNA so it can't do things like get read to make proteins.