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Science News for September 9, 1999


Nonlinear flight control

Researchers have developed seven nonlinear control laws for multi-axis control of high-performance aircraft, which could potentially save battle-damaged planes from combat. These approaches have shown spectacular results on simplified models but display pathological responses on higher fidelity simulation models.

First observation of a new quantum gas

Scientists at JILA have successfully cooled a gas of potassium atoms to temperatures near absolute zero, creating a Fermi degenerate gas. This achievement demonstrates the behavior of fermions, which are essential building blocks of matter, and could lead to breakthroughs in atomic clock technology and electronic devices.

SourceOffice of Naval Research·JournalScience·DateSep 9, 1999

New techniques to foil cyber intruders

Researchers at the Naval Surface Warfare Center are developing new statistical techniques to aid human operators in detecting and defending computer networks against intrusion. The new algorithms will filter out access attempts from strange places or at strange hours, or any attempts asking for unusual information.

Old electronics are new again

A new system-on-a-chip technology from CPU Tech enables seamless upgrades to high-end electronic systems without rewriting software. This innovative solution addresses the issue of electronic obsolescence, which can cost hundreds of millions of dollars to resolve.