Link roundup — Ruby for iOS, F-stops, LaTeX, WiFi, Sugru, Bulbs

* “Ruby for iOS development”:http://arstechnica.com/business/news/2012/05/exclusive-building-ruby-ios-applications-with-rubymotion.ars. Fascinating stuff. Moving beyond ObjectiveC seems like a good thing. $200 seems a bit steep.
* “Simple explanation of F stop”:http://www.petapixel.com/2012/04/02/a-simple-explanation-of-f-stop-numbers/. Useful. But beware, “simple” == 15 minutes, because the topic just isn’t that simple.
* “Convert handwriting to LaTeX”:http://www.adafruit.com/blog/2012/07/20/converting-hand-drawn-equations-to-latex-and-mathml/. Kind of awesome. Tho I tend to learn the easy keyboard equivalents for LaTeX pretty fast, but still this is awesome
* Rich has a bunch on “Wifi channel selection”:http://www.tongfamily.com/archives/2011/11/wifi-channels-which-are-the-best/, I am probably massively suboptimal.
* “Sugru self setting rubber”:http://www.adafruit.com/blog/2012/07/12/back-in-stock-sugru-multicolor-pack-self-setting-rubber/. Awesome stuff.
* What are you going to do with all your obsolete incandescent bulbs? I bet it won’t be as cool as the “Bulb Box”:http://www.alhamaddesign.com/collection1.html#8