Is Homosexuality Biologically Influenced?

Evidence for a Biological Influence in Male Homosexuality

Two pieces of evidence, a structure within the human brain and a genetic link, point to a biological component for male homosexuality

The Biological Evidence Challenged

Even if genetic and neuroanatomical traits turn out to be correlated with sexual orientation, causation is far from proved

Bohm's Alternative to Quantum Mechanics

This theory, ignored for most of the past four decades, challenges the probabilistic, subjectivist picture of reality implicit in the standard formulation of quantum mechanics

How Interferons Fight Disease

They are not the cure-alls researchers once hoped they would be, but they are providing therapy for a variety of infectious illnesses and for some cancers

Chesley Bonestell's Astronomical Visions

This artist's unique combination of technical knowledge and graphic prowess brought astronomy alive and helped to advance the manned spaceflight program

Directional Drilling

New techniques enable crews to drill around natural or man-made obstructions for oil and gas. These same methods are used to sample underground pollutants and bury service lines

East Side Story: The Origin of Humankind

The Rift Valley in Africa holds the secret to the divergence of hominids from the great apes and to the emergence of human beings

Aging Airways