Plant Life in a CO2-Rich World
Even without considerations of global warming, increasing atmospheric levels of carbon dioxide may greatly alter the structure and function of ecosystems. These changes will not necessarily benefit plants...
Features
Quantum Chaos
Does chaos lurk in the smooth, wavelike quantum world? Recent work shows that the answer is yes-symptoms of chaos enter even into the wave patterns associated with atomic energy levels
How Cells Absorb Glucose
Glucose, a crucial nutrient, must enter cells with the aid of a special transporter. Recent research elucidates the structure and function of the transporter and how insulin regulates it...
Accretion Disks in Interacting Binary Stars
Disks of matter naturally organize themselves around objects ranging from newborn stars to quasars. An unusual class of variable
How Sea Turtles Navigate
As soon as they hatch, sea turtles swim across hundreds of miles of featureless ocean; as adults, they navigate home to nest. Research has begun to identify the biological compasses and maps that guide them...
Tribal Warfare
Contact between Europeans and Native Americans may have shattered a delicate social balance that had existed among local tribes. One result was widespread violence
Lightwave Communications: The Fifth Generation
Optical fibers doped with erbium and powered by tiny laser chips are revolutionizing the way signals are regenerated for transcontinental communications and for fast data transmission over fiber-optic networks...
Living Together
Parasites and their hosts have devised many odd strategies-perhaps even sex-in their endless game of adaptive one-upsmanship. Yet sometimes they seem to cooperate.
Departments
- Letters
Letters to the Editors, January 1992
Errata
- TechnoFiles
Green Machine
- Recommended
Book Reviews, January 1993
- 50, 100 & 150 Years Ago
50 and 100 Years Ago, January 1992
- Profile
A Troubled Homecoming
- Mathematical Recreation
Coping with Math Anxiety
- Amateur Scientist
How to Generate Chaos at Home
- Science and the Citizen
Venus Revealed
After the Inferno
Rocky Rendezvous
Report Card
Under Construction
Bonus Game
Tacky Lasers are the Tiniest yet
Turing Test
Inside Job
Population Pressure
- Departments
No Tipping, Please
Essay: An Inner-City Education
- Technology and Business
Growing Strong
Explosive Images
Current Event
