NPR’s Skunk Bear Tumblr has a great new video on the schlieren visualization technique. The schlieren optical set-up is relatively simple but very powerful, as shown in the video. The technique is sensitive to variations in the refractive index of air; this bends light passing through the test area so that changes in fluid density appear as light and dark regions in the final image. Since air’s density changes with temperature and with compressibility, the technique gets used extensively to visualize buoyancy-driven flows and supersonic flows. Since sound waves are compression waves which change the air’s density as they travel, schlieren can capture them, too. (Video credit: A. Cole/NPR’s Skunk Bear)
Ben F. Laposky - Oscillons (1952-56)
"Computer art is often considered to have begun with Laposky’s oscilloscope images. A mathematician and artist, in 1950 Laposky became the first person to use an analogue computer to create graphic images, though he had previously experimented with mathematically-based systems.
To create Oscillation #4, he sent beams across the fluorescent face of a cathode-tube oscilloscope (or oscillograph), a device used to measure and graph the fluctuations in electric current. The voltage moves the beam up and down, tracing the image of the current on a screen.
Laposky recorded the mathematical curves and waveforms of the manipulated light beams onto high-speed film, producing artworks he called Electronic Abstractions or Oscillons.”
AA Visiting School Dubai 2014
Showreel of our AA Visiting School Dubai 2014. An initiative to introduce DIY Robots built on site to aid in the manufacturing of composite material systems and component-based structures.
AAVS Dubai is a 10 Day Workshop that happens once a year.
Sci Arc first year grad studio 2014
Frei Otto and Rolf Gutbrod, German Pavilion “Expo ‘67” in Montreal, (1965-1967)
For the German pavilion, Otto and Gutbrod interpreted the exhibition motto, “Man and His World” with a “Landscape built by human hands.” The cavernous interior contained modular steel platforms arranged at different levels. The entire area was covered by a single membrane of irregular plan and varying heights. Its contours were determined by the high points of the masts and the low points where the membrane was drawn, funnel- like, down to the ground. Eye loops filled with clear plastic material accentuated these points and the saddle surfaces they created. The prestressed membrane consisted of a translucent skin hung from a steel wire net, which, by eye, ridge, and edge ropes, was connected with the mast heads and anchor blocks.”