Seeing The Unseen: A public exhibition of Jupiter's interior  


We have been conducting series of experimentations that aimed to create an active, turbulent fogs that resemble the clouds of Jupiter. Currently, the prototype installation uses ultrasonic water foggers that fills a container pool (length 9.5 feet, width 14 feet, height 3.4 feet) with dense fog. Within the container, six controllable DC brushless fans generate a circular air flow to maintain the density of the fog. I created an additional fan control system that creates a linear air movement that make the fog rise upward repeatedly after a certain time duration. After the investigation, we obtained several types of infrared lights and looked into finding the most effective one for the installation. Our challenge was producing an intriguing visual effect of infrared illuminators underneath the fog. In the initial stage, I have developed series of video simulations of possible and compelling
Figure11 Photography of insternal structure of the installation  
visual light effects. We selected a pixelated imagery of infrared lights that flashed in a biomorphic fashion. Later, I reassembled parts of infrared illuminators and created prototypes of water proof light emitting devices. During the process, we have experimented with fiber optics that were connected to IR light sources. Even though the flexibility of the material was beneficial for creating an organic shaped matrix of lights, the drastic reduction of the brightness was a problematic matter. Instead of applying pixelation effect of infrared LEDs or fiber optics, we decided to use relatively large and powerful infrared illuminators for the installation. However, the illumination angle of most infrared lighting products was an issue as the lights were not apparent to the viewers in certain locations.
Figure12 Video documentation of the container filled with fog with ultrasonic misters    
Having infrared lights submerged underneath the fog, originally, we planned to use a matrix of small infrared LEDs to generate pixelated visual effects. Our goal was to have the LEDs to flash in an organic form. However, due to the lack of brightness, we had to abandon this idea. Instead of distributing multiple infrared LEDs in the container, we chose to apply a small number of powerful bright infrared illuminators. As the size were relatively larger, the infrared devices were far heavier and harder to control. The ongoing research is a study of generating interesting movements of the infrared illuminators using I/O controllers and heavy-duty actuators, such as gear motors. Our belief is that the new version of infrared light effects can deliver more interesting experiences with the audience.
Figure13 Photography of the container filled with fog with ultrasonic misters  
Figure14 Photography of infrared illuminator, gear motor connected to I/O controller    
Figure15 Video documentation of !/O controller testing  
Figure16 Video Documentation of mobile intrared illuminator prototype set


  2010 ©
Jet Propulsion Laboratory, Visual Strategist, Dan Goods,
NASA JPL Caltech, Space Grant Fellowship, AustinLee,