Science News

View more issues:

Articles in Feb 23, 1991 issue of Science News

• Insight proves key to marital therapy - insight-oriented vs. behavioral marital therapy in effectiveness
• A radical mechanism for methane buildup - hydroxyl radical depletion may contribute to methane, a greenhouse gas
  by Wendy Gibbons
• When armored tanks walked on four legs - armored dinosaur fossils discovered in Colorado
  by Richard Monastersky
• Gene defect tied to Alzheimer's cases
  by Rick Weiss
• Snowflake growth puts on electrifying show
  by Ivars Peterson
• Liquid crystal bridges silk-spinning gap - metamorphosis of silk from silkworms and orb-weaving spiders
  by Ron Cowen
• Cosmological paradox in the dark of night - why the sky is dark at night
• 'Go for it, kid': looking back on five decades of the Science Talent Search - sponsored by Westinghouse - Cover Story
  by Ron Cowen
• Hundreds die in Afghanistan quake
• Gamma interferon slays microbial invaders - drug to treat infections in people with chronic granulomatous disease
  by Kathy A. Fackelmann
• Nylon: sheer havoc - mass production of nylon may be a factor in global warming
• Ultrasound 'eye' scans organs from within
  by Wendy Gibbons
• Rebirth of a radiotelescope - at the National Radio Astronomy Observatory, Green Bank, West Virginia
• K-T wallop: through the looking glass - evidence of a meteoric impact at the Cretaceous-Tertiary boundary
• The signal value of noise: adding the right kind can amplify a weak signal - stochastic resonance
  by Ivars Peterson