A gentle lead-in to the subject, Feynman starts by discussing photons and their properties.
Feynman’s lectures were originally given as the Sir Douglas Robb lectures at the University of Auckland, New Zealand in 1979. Videotapes of these lectures were made publicly available on a not-for-profit basis in 1996.Learn more about QED here (Courtesy of Indiana University).
BRAND NEW! TMBGs free app for ANDROID and IPHONE!
It’s They Might Be Giants official and totally free song app. Like TMBGs original Dial-A-Song, the app has a different song every day. The app holds five of the freshest posted tracks at all times. From Don’t Let’s Start to Nanobots!
Get it for FREE at iTunes for iphones and ipads here
Get it for FREE for android-based stuff at
This isn’t how things are supposed to work. “You’re on Fire,” the first track off Nanobots, the new They Might Be Giants album, is an urgent, antsy marvel, a disco-glittered pop stomper whose three killer hooks slide over, under, and through each other, all coiled up as tightly as snakes…
God’s way is better than your way. His plan is bigger than your plan. His dream for your life is more rewarding, more fulfilling, better than you’ve ever dreamed of. Now stay open and let God do it His way.
Some beautiful stills from Hine’s video for Insect Hospital+ See it here http://www.youtube.com/watch?v=YYiIcETO2A4
And do retumbl this!—you know—the thing in the upper right corner!
This is funny and interesting. I think I’ll keep this and see how many I can tick or cross off in my life time.
Underwater explosions are, in general, much more dangerous than those in air. This video shows an underwater blast at 30,000 fps. During the initial blast, a hot sphere of gas expands outward in a shock wave. In air, some of the energy of this pressure wave would be dissipated by compressing the air. Since water is incompressible, however, the blast instead moves water aside as the bubble expands. Eventually, the bubble expands to the point where its pressure is less than that of the water around it, which causes the bubble to collapse. But the collapse increases the gas pressure once more, kicking off a series of expansions and collapses. Each bubble contains less energy than the previous, thanks to the loss of pushing the water aside. (Video credit: K. Kitagawa)
2 people sitting in front me on the bus were talking about how rude it is when people eavsdrop on others conversations and I told them that I totally agree.
