I use applications of discrete math all the time in programming, though I never got to take a discrete math class. I found this lecture series from a discrete math class by an instructor at Rutgers, Sergio de Biasi. It is one of the few class lectures about discrete math that is online. I’ve included the first class video below. The whole series of lectures is available on on vimeo.
Discrete Structures Fall 2010 Lecture 01 from Sergio de Biasi on Vimeo.
I just rediscovered this site Science Myths in K-6 Textbooks which I find lots of interesting nuggets on. Like the fact that water IS blue, and the sky is blue because air is blue and also red depending on viewing angle. It reflects blue light but is red at sunset because it transmits red light.
This site always reminds me of the very old science textbook I had in elementary school in the 1980′s that said someday man will go to the moon.
Even though i’ve read a number of books about Richard Feynman this talk by Lawrence Krauss about his life brought to life new insight and anecdotes about his views and character that I never knew. You can learn where one of my favorite title’s of his books, “What do you care what other people think?” comes from.
The animals around chernobyl seem to be thriving even with very high levels of radiation still in immediate area and soil around chernobyl. Without people the area has quickly returned to nature.