Pigments that turn caustic on exposure to light can fight cancer, blindness and heart disease. Their lightinduced toxicity may also help explain the origin of vampire tales
Scientists and engineers have long considered the problems of flight to other planets. As the reality of space travel slowly draws closer, they particularly weigh its effects on man's earth-conditioned frame...
This controversial drug is now used widely in France to terminate unwanted pregnancies. Yet the compound was not invented for that purpose and actually has many possible applications
Exactly how does the need for water give rise to this familiar, and occasionally excruciating, sensation? The reader is advised to begin this article only if he has a cool drink near at hand...
Pain is not a fixed response to a hurtful stimulus. Its perception is modified by our past experiences, our expectations and, more subtly, by our culture
What activity of the brain underlies the creative process? The evidence indicates that electrical waves, traveling on multilane pathways among the 10 billion cells of the cortex, correspond to the experience of mind...
It is surprisingly difficult to answer the question because the perception of injury involves a subtle blend of physiological and psychological factors
