TechnologyJanuary 1, 1994
Biowarfare Wars
Critics ask whether the army can manage the program
Stories by John Horgan
John Horgan is a freelance journalist and a former Scientific American staff writer. He comments on science in his free online journal, Cross-Check, and he has also posted his self-published books Mind-Body Problems (2018) and My Quantum Experiment (2023) online. Horgan teaches science writing at the Stevens Institute of Technology.
Mind & BrainDecember 1, 1993
Fractured Functions
Does the brain have a supreme integrator?
The SciencesDecember 1, 1993
Heart of the Matter
A particle "factory" for probing a seminal asymmetry
The SciencesDecember 1, 1993
Wanted: a Defense R&D Policy
Defense researchers seek to redefine their mission
HealthNovember 1, 1993
Were Four Corners Victims Biowar Casualties?
TechnologyNovember 1, 1993
The Mastermind of Artificial Intelligence
TechnologyOctober 1, 1993
The Death of Proof
Computers are transforming the way mathematicians discover, prove and communicate ideas, but is there a place for absolute certainty in this brave new world?
The SciencesSeptember 1, 1993
Fermat's MacGuffin
A great math problem is finally (probably) conquered
The SciencesAugust 1, 1993
Perpendicular to the Mainstream
EvolutionAugust 1, 1993
Off to an Early Start
The SciencesAugust 1, 1993
Culture Clash
Is mathematics becoming too much like physics?
HealthJuly 1, 1993
A Kinder War
"Harm reduction" gains ground as an approach to drug abuse
The SciencesJune 1, 1993
Eugenics Revisited
Scientists are linking genes to a host of complex human disorders and traits, but just how valid--and useful--are these findings?
The SciencesMay 1, 1993
The Worst Enemy of Science
The SciencesApril 1, 1993
The Nicest Guy in Washington
Space & PhysicsApril 1, 1993
An Eternally Self-Reproducing Cosmos?
EnvironmentMarch 1, 1993
Antarctic Meltdown
The frozen continent's ice cap is not as permanent as it looks
EnvironmentMarch 1, 1993
Are Scientists Too Messy for Antarctica?
HealthMarch 1, 1993
Stubbornly Ahead of his Time
Space & PhysicsFebruary 1, 1993
COBE Corroborated
Balloon observations support satellite data
The SciencesFebruary 1, 1993
The Artist, the Physicist and the Waterfall
Mind & BrainFebruary 1, 1993
Genes and Crime
A U.S. plan to reduce violence rekindles an old controversy
Space & PhysicsFebruary 1, 1993
What if They Don't Have Radios?
The SciencesDecember 1, 1992
The New Challenges