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cvd Collaborative Virtual Director and CAVE 5D Over The vBNS
Presenting new ways for scientists to represent and explore data in a virtual collaborative enviorment.
Real Media Stream
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300kbs Windows Media
(Requires Windows Media Player)

Length
2 minute 01 Second
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tornado Simulation of a Tornado within a Severe Thunderstorm
from IMAX "Storm Chasers"

Real Media Stream
(Requires RealVideo Player)

300kbs Windows Media
(Requires Windows Media Player)

Length
1 minute 22 Seconds
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traces Traces: Revealing Nature through Landscape Dynamics
Real Media Stream
(Requires RealVideo Player)

300kbs Windows Media
(Requires Windows Media Player)

Length
7 minutes 50 Seconds
Principal Investigators
Doug Johnston, Wes Reetz
Flow Data
Helena Mitasova, Bill Brown
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NeutronStarCollision Visualization of Neutron Star Collision
Real Media Stream
(Requires RealVideo Player)

300kbs Windows Media
(Requires Windows Media Player)

Length
11 Seconds
Principal Investigators
Douglas Swesty, Alan Calder, Edward Wang
Visualization
David Bock
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tele-immersion Tele-Immersion
Click on the image to stream video.
(Requires RealVideo Player)
Length
3 Minutes 20 Seconds
Principal Investigators
Jay Rosenstein
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Upgrading the SGI Origin 2000
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(Requires RealVideo Player)
Length
2 Minutes 10 Seconds
Principal Investigators
Jay Rosenstein, John Melchi
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Optiverse 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.
Click on the image to stream video.
(Requires RealVideo Player)
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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(Requires RealVideo Player)
Length
3 Minutes
Software Used
Hardware Used
Principal Investigators
Stuart Levy, John Sullivan
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3dbhcollision 3D Black Hole Collision
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(Requires RealVideo Player)
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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alphaforest Lyman-Alpha Forest Visualization
text here
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(Requires RealVideo Player)
Length
1 Minutes 17 seconds
Software Used
Hardware Used
Principal Investigators
Peter Anninos, Yu Zhang, Mike Norman
John Shalf (Visulization)
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alphashapes 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
Click on the image to stream video.
(Requires RealVideo Player)
Length
10 Minutes
Software Used
Hardware Used
Principal Investigators
H. Edelsbrunner, P. Fu, N. Akkiraju, J. Qian
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blackhole 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.
Click on the image to stream video.
(Requires RealVideo Player)
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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hydronickle 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.
Click on the image to stream video.
(Requires RealVideo Player)
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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paths2
phase
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

Click on the image to stream video.
(Requires RealVideo Player)
Length
4.5 Minutes
Software Used
Hardware Used
Principal Investigators
David Ceperley, Burkhard Militzer
Burkhard Militzer, Jeff Carpenter (Visualization)
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starcollision Neutron Star Collision
Simulation of the final miliseconds of a neutron star merger. New visualization of data
Click on the image to stream video.
(Requires RealVideo Player)
Length
31 seconds
Software Used
Hardware Used
Principal Investigators
Swesty, Doug; Calder, Alan; Wang, Edward
Bock, David (visualization)
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optiverse 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.
Click on the image to stream video.
(Requires RealVideo Player)

300kbs Windows Media Stream
(Requires Windows Media Player)

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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smog 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.
Click on the image to stream video.
(Requires RealVideo Player)
Length
1 minute 14 seconds
Software Used
Hardware Used
Principal Investigators
Scaletti, Carla; Craig, Alan
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forest 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.
Click on the image to stream video.
(Requires RealVideo Player)
Length
1 minute 18 seconds
Software Used
Hardware Used
Principal Investigators
Scaletti, Carla; Craig, Alan
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pendulum 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.
Click on the image to stream video.
(Requires RealVideo Player)
Length
56 seconds
Software Used
Hardware Used
Principal Investigators
Scaletti, Carla; Craig, Alan
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skeletal 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.
Click on the image to stream video.
(Requires RealVideo Player)
Length
1 minute 12 seconds
Software Used
Hardware Used
Principal Investigators
Scaletti, Carla; Craig, Alan
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starcollision Colliding Neutron Stars
Simulation of the final miliseconds of a neutron star merger.
Click on the image to stream video.
(Requires RealVideo Player)
Length
31 seconds
Software Used
Hardware Used
Principal Investigators
Swesty, Doug; Calder, Alan; Wang, Edward
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origin2000 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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(Requires RealVideo Player)
Length
2 minutes 22 seconds
Principal Investigators
Rosenstein, Jay; Melchi, John
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severe storm 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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(Requires RealVideo Player)
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 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.
Click on the image to stream video.
(Requires RealVideo Player)
Length:
8 Minutes
Software Used:
illiView
Hardware Used:
Silicon Graphics Computer Systems
Principal Investigators:
Francis, George; Hartman, Chris; Axen, Ulrike
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nsfnet 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.
Click on the image to stream video.
(Requires RealVideo Player)
Length:
1 Minute
Software Used:
Hardware Used:
Principal Investigators:
Cox, Donna J.; Patterson, Robert; NCSA
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crumbs 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.
Click on the image to stream video.
(Requires RealVideo Player)
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 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.
Click on the image to stream video.
(Requires RealVideo Player)
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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kink instabilities 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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(Requires RealVideo Player)
Length:
2 Minutes
Software Used:
Hardware Used:
Principal Investigators:
Norman, Michael; Hardee, Philip; Clarke, David
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yellowstone 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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(Requires RealVideo Player)
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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bio workbench Biology Workbench (Bioinformatics Workbench)
Mixed version.
Click on the image to stream video.
(Requires RealVideo Player)
Length:
3 Minutes
Principal Investigators:
Rosenstein, Jay; Melchi, John
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