After the Red Planet reemerged from conjunction — a period when NASA doesn't communicate with spacecraft because Mars is ...

A series of quantum physics experiments and theoretical papers now suggest that heat can flow spontaneously from a cold object to a hot one, provided the right quantum conditions are in place. This ...

A sealed Soviet chamber, sleepless prisoners, rising screams and sudden silence fuelled a chilling internet legend that still ...

While participants made these choices, the research team applied transcranial alternating current stimulation to the frontal and parietal lobes of the brain. This non-invasive stimulation was designed ...

Forbes contributors publish independent expert analyses and insights. Tony Bradley covers the intersection of tech and entertainment. In 1971, a groundbreaking experiment was conducted in the basement ...

Scientists are conducting a long-term experiment on evolution to investigate how single-celled organisms could evolve into multicellular lifeforms. After thousands of generations, their yeast grew ...

This article is an extended version of the article “The double-slit experiment” that appeared in the September 2002 issue of Physics World (p15). It has been further extended to include three letters ...