Risk Analysis and Management
Inadequate approaches to handling risks may result in bad policy. Fortunately, rational techniques for assessment now exist
Features
Viral Quasispecies
The standard definition of a biological species does not apply to viruses. A more expansive and dynamic view of viral populations holds clues to understanding and defeating them
Australia's Polar Dinosaurs
Their excellent night vision and apparent warm blood raise a question: Could they have survived icehouse conditions at the end of the Cretaceous period?
Accurate Measurement of Time
Increasingly accurate clocks -- now losing no more than a second over millions of years -- are leading to such advances as refined tests of relativity and improved navigation systems...
Surgical Treatment of Cardiac Arrhythmias
To save the life of a doomed patient, the author and his colleagues developed a now standard surgical procedure for correcting lethally fast heartbeats in many people susceptible to them...
Fuzzy Logic
The binary logic of modern computers often falls short when describing the vagueness of the real world. Fuzzy logic offers more graceful alternatives
Edwin Hubble and the Expanding Universe
More than any other individual, he shaped astronomers' present understanding of an expanding universe populated by a multitude of galaxies
Sustaining the Amazon
Can scientists reconcile the inevitability of economic development with the preservation of rain forests?
Departments
- Letters
Letters to the Editors, July 1993
Errata
- Recommended
Can History Stop Repeating Itself?
- 50, 100 & 150 Years Ago
50 and 100 Years Ago: Gases Dissolve in Metals and Discovery of a New Mammal
- Profile
Science's Unscientific Champion
- Mathematical Recreation
The Topological Dressmaker
- Science and the Citizen
The Big Nada?
Moonball
Banzai!
QED for QCD
A Kinder War
Healing Hearing
- Departments
Health Care without Perverse Incentives
Science: How much is Enough?
- Technology and Business
Try, Try Again
Earcons
Putting a Spin on Parasites
Keeping the Sun Shining on British Technology
Practical Fractal
