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	Collaborative Virtual Director and CAVE 5D Over The vBNS Presenting new ways for scientists to represent and explore data in a virtual collaborative enviorment.
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Length	2 minute 01 Second
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	Simulation of a Tornado within a Severe Thunderstorm from IMAX "Storm Chasers"
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Length	1 minute 22 Seconds
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	Traces: Revealing Nature through Landscape Dynamics
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Length	7 minutes 50 Seconds
Principal Investigators	Doug Johnston, Wes Reetz
Flow Data	Helena Mitasova, Bill Brown
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	Visualization of Neutron Star Collision
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Length	11 Seconds
Principal Investigators	Douglas Swesty, Alan Calder, Edward Wang
Visualization	David Bock
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	Tele-Immersion
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Length	3 Minutes 20 Seconds
Principal Investigators	Jay Rosenstein
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	Upgrading the SGI Origin 2000
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Length	2 Minutes 10 Seconds
Principal Investigators	Jay Rosenstein, John Melchi
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	The Optiverse (full version) The Optiverse is a computer-animated video showing an entirely new way to turn a sphere inside out. The video captures scenes that can also be viewed as real-time interactive computer animations, on a workstation console or in the CAVE immersive virtual environment. The narration is accompanied by parambiences, which are novel experiments in scientific sonification. The Optiverse premiered at the VideoMath festival at ICM'98, the International Congress of Mathematicians, August 1998 in Berlin. A special two-minute version was shown in the Electronic Theater at SIGGRAPH 98, July 1998 in Orlando.
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Length	6.5 Minutes
Software Used	Evolver, illiShell
Hardware Used
Principal Investigators	George Francis, John Sullivan Stuart Levy, Camille Goudeseune, Jeff Carpenter (visualization)
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	Knot Energies Minimizing an energy for knots (motivated by spreading electric charge along the knot) should lead to canonical configurations for each knot or link type. We show experiments with one such energy, whose Moebius invariance is demonstrated with a tour through the conformal group. Minimizing the energy simplifies a complicated unknot to the round circle, and finds symmetric configurations for other simple links including the trefoil knot and the Borromean rings. Surprisingly, minimization breaks the symmetry of some other torus knots.
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Length	3 Minutes
Software Used
Hardware Used
Principal Investigators	Stuart Levy, John Sullivan
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	3D Black Hole Collision
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Length	2 Minutes 48 Seconds
Software Used
Hardware Used
Principal Investigators	P. Anninos, S. Brandt, K. Camarda J. Masso, E. Seidel, J. Shalf, P. Walker, M. Saladino (Visualization)
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	Lyman-Alpha Forest Visualization text here
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Length	1 Minutes 17 seconds
Software Used
Hardware Used
Principal Investigators	Peter Anninos, Yu Zhang, Mike Norman John Shalf (Visulization)
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	Modelling with Alpha Shapes: Viewing in CAVE Diamond Lattice Common geometric models for proteins and other molecules are the space filling (SF), the solvent accessible (SA), and the molecular surface (MS) models. A representation of the molecule that is less direct than sphere models consists of a simplicial complex (alpha complex) connecting the atom centers. The relationship among the four models is illustrated with visually striking continuous deformations. The immersive, 3D environment allows for the instant identification of cavities and voids that are otherwise difficult to see on a 2D screen. Shapes included are: DIAMOND LATTICE: Crystalline Structure of Carbon & Silicon Atoms GRAMICIDIN A: Toxic Crystalline Polypeptide Antibiotics Used Against Bacterial in Local Infections MYOGLOBIN: A Red Iron-Containing Protein Pigment in Muscles A ZEOLITE: Hydrated Silicate Used for its Molecular Sieve Properties
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Length	10 Minutes
Software Used
Hardware Used
Principal Investigators	H. Edelsbrunner, P. Fu, N. Akkiraju, J. Qian
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	The Evolution of Distored Black Holes The simulations are of two different physical systems. First a single black hole spacetime is distorted by placing a gravitational wave in its vicinity. We animate the apparent horizon history (embedding diagram and gaussian curvature) and the emitted gravitational radiation. The second case is that of the head-on collision of two equal mass black holes. Here, we just animate the apparent horizon evolution.
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Length	10 Minutes
Software Used
Hardware Used
Principal Investigators	Peter Anninos, David Bernstein, David Hobill, Edward Seidel, Larry Smarr Mark Bajuk (Visualization), Jay Rosenstein, Bob Patterson, Lynn Gephart (post-production)
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	Hydrogen Collision Dynamics on a Rough Nickel Surface This simulation shows how low-energy ions interact with solid surfaces. Interactions like these are at the heart of semiconductor processing and manufacture, and fusion energy research. The three cases shown: a reflection, an absorption, and a "hover" event that highlights the role of surface features and the solid's work function, convey details about ion-surface interactions that were previously unknown. The simulations result from a molecular dynamics code where each atom interacts with all other atoms at every time step. The surface of the solid has realistic atomic-scale surface roughness features added to simulate an engineering surface. The velocity vectors and potential energies of all the atoms in the surface and the incident hydrogen atom are shown along with their time-resolved position.
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Length	8 Minutes
Software Used
Hardware Used
Principal Investigators	Corson, Aliza; Mehrotra, Gautam; (Animators) Rosenstein, Jay; Patterson, Robert; Baron, Cordelia; (Post Production)
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	Fermionic Path-Integral Monte-Carlo Simulations of Hot, Dense Hydrogen This video shows results from path-integral Monte Carlo simulation of hydrogen. We study its transition from the plasma state with free protons and electrons to a molecular gas and to molecular metallic liquid. The outer pink box denotes the boundaries of the simulation volume containing electrons and protons. We show the system in two modes. First the protons are denoted with salmon spheres. A yellow line between two of them indicates a molecule. The electron density is displayed on plane sliced through the volume. In the second mode, we show a typical configuration of the paths from the Monte Carlo simulation. The protons are localized and to be seen as white dots. The electron paths are shown in red and blue color due to their spin state. Electrons can permute by forming long connected paths, which is displayed in yellow color. Also see: http://www.ncsa.uiuc.edu/Apps/CMP/militzer/research.html Publications: http://www.ncsa.uiuc.edu/Apps/CMP/papers/mil97a/mil97a.html
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Length	4.5 Minutes
Software Used
Hardware Used
Principal Investigators	David Ceperley, Burkhard Militzer Burkhard Militzer, Jeff Carpenter (Visualization)
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	Neutron Star Collision Simulation of the final miliseconds of a neutron star merger. New visualization of data
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Length	31 seconds
Software Used
Hardware Used
Principal Investigators	Swesty, Doug; Calder, Alan; Wang, Edward Bock, David (visualization)
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	The Optiverse (version 1) The Optiverse is a computer-animated video showing an entirely new way to turn a sphere inside out. The video captures scenes that can also be viewed as real-time interactive computer animations, on a workstation console or in the CAVE immersive virtual environment. The narration is accompanied by parambiences, which are novel experiments in scientific sonification. The Optiverse premiered at the VideoMath festival at ICM'98, the International Congress of Mathematicians, August 1998 in Berlin. A special two-minute cut was shown in the Electronic Theater at SIGGRAPH 98, July 1998 in Orlando.
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Length	1.5 minutes
Software Used	Evolver, illiShell
Hardware Used
Principal Investigators	George Francis, John Sullivan Stuart Levy, Camille Goudeseune, Jeff Carpenter (visualization)
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	Using Sound to Extract Meaning from Complex Data-- Smog This video is in support of a presentation made of a paper authored by Carla Scaletti of CERL Sound Group and Alan Craig of NCSA Visualization Group for the 1991 SPIE/SPSE Conference in San Jose. This video shows examples of using sound to aid in understanding data in conjunction with animation. The video also explains the making of the sound and the KYMA system that we used.
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Length	1 minute 14 seconds
Software Used
Hardware Used
Principal Investigators	Scaletti, Carla; Craig, Alan
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	Using Sound to Extract Meaning from Complex Data-- Forest This video is in support of a presentation made of a paper authored by Carla Scaletti of CERL Sound Group and Alan Craig of NCSA Visualization Group for the 1991 SPIE/SPSE Conference in San Jose. This video shows examples of using sound to aid in understanding data in conjunction with animation. The video also explains the making of the sound and the KYMA system that we used.
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Length	1 minute 18 seconds
Software Used
Hardware Used
Principal Investigators	Scaletti, Carla; Craig, Alan
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	Using Sound to Extract Meaning from Complex Data-- Smog This video is in support of a presentation made of a paper authored by Carla Scaletti of CERL Sound Group and Alan Craig of NCSA Visualization Group for the 1991 SPIE/SPSE Conference in San Jose. This video shows examples of using sound to aid in understanding data in conjunction with animation. The video also explains the making of the sound and the KYMA system that we used.
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Length	56 seconds
Software Used
Hardware Used
Principal Investigators	Scaletti, Carla; Craig, Alan
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	Using Sound to Extract Meaning from Complex Data-- Skeletal This video is in support of a presentation made of a paper authored by Carla Scaletti of CERL Sound Group and Alan Craig of NCSA Visualization Group for the 1991 SPIE/SPSE Conference in San Jose. This video shows examples of using sound to aid in understanding data in conjunction with animation. The video also explains the making of the sound and the KYMA system that we used.
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Length	1 minute 12 seconds
Software Used
Hardware Used
Principal Investigators	Scaletti, Carla; Craig, Alan
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	Colliding Neutron Stars Simulation of the final miliseconds of a neutron star merger.
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Length	31 seconds
Software Used
Hardware Used
Principal Investigators	Swesty, Doug; Calder, Alan; Wang, Edward
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	Cray/Silicon Graphics Origin 2000 System This video talks about NCSA's Distributed Shared Memory Computing Environment and the Origin 2000 system, featuring comments by Dr. Larry Smarr and Irene Qualters of Cray Research.
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Length	2 minutes 22 seconds
Principal Investigators	Rosenstein, Jay; Melchi, John
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	Study of a Numerically Modeled Severe Storm Numerical models of thunderstorms can be used to complement the understanding of their behavior. These models consist of mathematical equations which can be solved on a supercomputer. Wind, temperature, pressure, and other values are calculated every few seconds for several hundred thousand locations in the area of the storm's development.
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Length:	7 Minutes
Software Used:	Wavefront Technologies animation and various inhouse visualtization
Hardware Used:	SGI Iris 4D-20, 4D-240GTX, 4D-70GTX, Alliant VFX-80, Cray II
Principal Investigators:	Willhemlson, Robert; Brooks, Harold; Jewett, Brian; Shaw, Crystal; Wicker, Louis; NCSA
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	Post-Euclidean Walkabout Transcript of a real-time interactive cave application presented at VROOM/ Siggraph '94 which takes you on a visit to the post-Eucildean geometry of Gauss, Riemann, Klien, Poincare, and Thurston.
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Length:	8 Minutes
Software Used:	illiView
Hardware Used:	Silicon Graphics Computer Systems
Principal Investigators:	Francis, George; Hartman, Chris; Axen, Ulrike
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	Visualization Study of the NSFNET, SIGGRAPH '92 This high-definition computer animation educates general audiences about the exponential growth of networking in the US and world. A data visualization spanning a two-year period represents rapid traffic growth that exceeds ten's of billions of bytes per day. Networking is particularly relevant to SIGGRAPH '92, which is connected to a gigabit network.
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Length:	1 Minute
Software Used:
Hardware Used:
Principal Investigators:	Cox, Donna J.; Patterson, Robert; NCSA
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	Auditory Bread Crumbs for Navigating Volumetric Data Crumbs is an application for the CAVE(tm) which uses volume rendering in a virtual environment for the visualization of instrumental biological datasets. This video breifly describes the CAVE(tm) and focuses on the sonification symphonic components within Crumbs software.
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Length:	6 Minutes
Software Used:	Crumbs
Hardware Used:	SGI Onyx, SGI Indy2, 2 IBM PC's, and the CAVE(tm)
Principal Investigators:	Brady, Rachael; Bargar, Robin; Choi, Insook; Reitzer, Joe
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	Galaxy Formation of the Universe New Techniques in Hydrodynamic Cosmology We have created computer code based on state-of-the-art computational techniques to solve the equations of physics that apply both ot dark matter and to the more complex baryonic matter. This code, in combination with a dataset representative of several manageable galactic clusters, is suitable to run on available supercomputers. The five animated shorts on this video represent manipulation of different physical variables.
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Length:	5 Minutes
Software Used:	In-house visualization software
Hardware Used:	Convex C3380 (NCSA)
Principal Investigators:	Bryan, Greg; Norman, Michael (NCSA); Stone, Jim (University of Maryland)
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	Motion Analysis of Kink Instabilities in Supersonic Flows Here we study the time development of the fundamental "kink" mode of instability in a supersonic gas jet. Important flow structures within and outside the jet are revealed through the use of a customized four-quadrant color representation based on periodic functions. Results of supercomputer simulations are presented.
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Length:	2 Minutes
Software Used:
Hardware Used:
Principal Investigators:	Norman, Michael; Hardee, Philip; Clarke, David
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	Landscape Dynamics of Yellowstone National Park: The Role of Fire 1690 to 1990 -- Siggraph '90 The purpose of this study was to investigate the affects of fire on landscape diversity. The video shows the dynamics of the landscape growth since 1690.
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Length:	3 Minutes
Software Used:	Home-grown FORTRAN Fire simulation code, NCSA IMAGE
Hardware Used:	CRAY X-MP, Macintosh II
Principal Investigators:	Kovacic, David A., Ph.D; Romme, William H, Ph.D; Despain, Don G., Ph.D
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	Biology Workbench (Bioinformatics Workbench) Mixed version.
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Length:	3 Minutes
Principal Investigators:	Rosenstein, Jay; Melchi, John
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