- Follow the links for the full articles.
- Physics News 170, March 28, 1994
- CONTROLLING CHAOS through the use of small perturbations has
been possible in a number of systems, such as erratically vibrating
metal strips, certain electrical circuits, and mixing in chemical
- BUILDING WHOLE INSTRUMENTS ON A CHIP with integrated-
circuit technology is a major goal in the field of
microelectromechanical systems (MEMS).
- HIGH-SPEED STM can reveal the incessant motion of atoms across
a silicon surface.
- SOFT GAMMA RAY REPEATERS (SGR's) are celestial sources of
gamma bursts. Only three are known to exist in our galaxy.
- Physics News 169, March 17, 1994
- LIMITS ON THE FLUX OF MAGNETIC MONOPOLES streaming
through the solar system can be determined from the apparent lack of
proton decays.
- PHONONIC CRYSTALS would be to sound waves what photonic
crystals are to light waves or what semiconductors are to electrons:
they would exclude sound waves with a certain range (band gap) of
- ASTEROID IDA SEEMS TO HAVE A MOON.
- GERMANIUM-SILICON TRANSISTORS are more than twice as fast
as silicon transistors and this year IBM, in collaboration with the
company Analog Devices, will market GeSi products, such as analog-
- A HYPERVELOCITY LAUNCHER has accelerated a quarter-inch
disk of metal to a velocity of 15.8 km/sec, or about 36,000 miles per
hour, a record for a macroscopic object.
- Physics News 168, March 10, 1994
- HIGH ENERGY SULPHUR-SULPHUR COLLISIONS at the CERN
SPS accelerator exhibit a greater "stopping power" or "stickiness"
than proton-proton collisions.
- AEROCRYSTAL NETWORKS combine the preparation techniques
used for aerogels---gel materials that are more than 90% air---with the
technical promise of porous silicon---silicon that has been etched by
- SONOLUMINESCENCE CAN BE CHAOTIC.
- AN EXTREMELY SENSITIVE, WIDE-AREA PHOTON
DETECTOR has been developed by scientists at Ohio State.
- Physics News 167, March 3, 1994
- CORONAL MASS EJECTIONS VS. SOLAR FLARES.
- SEARCHING FOR ANTIPROTON DECAY is harder than searching
for proton decay.
- DETERMINING THE NATURE OF CHEMICAL BONDS AT
NEAR-ATOMIC RESOLUTION in the interfaces of inorganic solids
is now possible using a combination of electron microscopy
| February 1994
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