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The
Mega Foundation
Science News
November 6, 2004
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Minority Report-Style 'Data CAVE' Created By Purdue Researchers - Space.com In
Minority Report, Tom Cruise plays a detective who uses an
immersive computer environment to solve crimes. The 'data CAVE'
(Configurable Automatic Virtual Environment) brings together information
from disparate souces, making it easier for detectives to see patterns
and perpetrators. The film is based on Philip
K. Dick's remarkable 1956 short story of the
same name; in the story, the Precrime
analytical wing stands by to interpret the
fevered words of the three precogs. |
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Fuel
Cells: The Next Generation - SpaceDaily Sossina
Haile, an associate professor of materials science and chemical engineering at
the California Institute of Technology, is an expert in fuel cells, and she has
been whittling away at the heat problem for years. Now she and her
colleagues have not only solved the problem, they've smashed it. They've brought
the temperature down to about 600 degrees Celsius (1100 degrees Fahrenheit),
while achieving more power output than others are achieving at the higher
temperatures - about 1 watt per square centimeter of fuel cell area. They
accomplished this by changing the cathode. |
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Measuring Cosmic Distances With Stellar Heart Beats - SpaceDaily Left: The
two observation techniques used for the interferometric version of the
Baade-Wesselink method are high-resolution spectroscopy (left) and
interferometry (right). The former provides the radial velocity curve
over the pulsation cycle of the star. When integrated, this in turn
provides the linear radius variation of the star (in metres). The
interferometric observations document variation of the star's angular
radius. The ratio of these two quantities gives the distance of the
Cepheid. Credit: ESO. Taking
advantage of the very high spatial resolution provided by the Very Large
Telescope Interferometer, a team of French and Swiss astronomers* has
measured directly the change in angular diameter of four southern
Cepheid variable stars over their pulsation cycle.
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