Posts filed under “Science”
Fifteen uncoupled simple pendulums of monotonically increasing lengths dance together to produce visual traveling waves, standing waves, beating, and (seemingly) random motion.
The period of one complete cycle of the dance is 60 seconds. The length of the longest pendulum has been adjusted so that it executes 51 oscillations in this 60 second period. The length of each successive shorter pendulum is carefully adjusted so that it executes one additional oscillation in this period. Thus, the 15th pendulum (shortest) undergoes 65 oscillations.
For more details see Harvard Natural Sciences Lecture Demonstrations
Our apparatus was built from a design published by Richard Berg [Am J Phys 59(2), 186-187 (1991)] at the University of Maryland.
MIT Media Lab researchers have created a new imaging system that can acquire visual data at a rate of one trillion frames per second. That’s fast enough to produce a slow-motion video of light traveling through objects. Trillion-frame-per-second video (MITNews) Read more: http://web.mit.edu/newsoffice/2011/trillion-fps-camera-1213.html Project website: http://www.media.mit.edu/~raskar/trillionfps/
An illustration of a black hole the size of nearly 10 billion Suns. Inside it, where gravity is so in- tense that not even light can escape, our solar system is shown to scale. An artist’s conception of stars moving in the central regions of a giant elliptical galaxy that harbors a black hole. Source:…Read More
This is a year-long time-lapse study of the sky. A camera installed on the roof of the Exploratorium museum in San Francisco captured an image of the sky every 10 seconds. From these images, I created a mosaic of time-lapse movies, each showing a single day. The days are arranged in chronological order. My intent…Read More