First published in the United States by W.W.Norton and Company, on March 1 1997, Guns, Germs and Steel was initially subtitled ‘The Fates of Human Societies.’ Within a few months, this subtitle had ...

Perhaps the most puzzling question Jared Diamond encounters as he investigates animal domestication is: Why were no large mammals ever domesticated in tropical Africa? Africa, south of the Sahara, is ...

Astronomers measure distances to the stars in terms of light years, units that combine time and distance. One light year is the distance light travels in one year; so if you look at a star ten light ...

Home care services fall into five general categories, although some home care agencies may offer multiple services and have more than one service provided by the same person from their agency.

Cinematographer Francis Kenny and Timothy Ferris on Key Biscayne by Mark Diamond Enlarge Image Timothy Ferris interviewing Robert Smith on Key Biscayne by Mark Diamond Enlarge Image Robert Smith on ...

In this lesson, students build two circuits and explore how transistors function. When Bell Labs introduced the transistor in June of 1948, a spokesman proudly announced "This cylindrical object . . .

Bell Laboratories, one of the world’s largest industrial laboratories and now part of Lucent Technologies, was originally the research and development arm of the giant telephone company American ...

Becoming eligible for Social Security and Medicare at age 65 used to be the milestones that marked the end of "middle age" and the beginning of "old age." These days, though, we are living longer, ...

HOWARD BAHR: There were some trends in the family between 1924 and 1978 that showed dramatic change. There were others that our data suggests that things are pretty much as they were. Between 1924 and ...

Astrophotography has come a long way in recent years, thanks to digital cameras (which are more light-sensitive than film), digital photo processing (which can bring out the subtle details in dim ...

A program such as Martin Luther involves months of painstaking research, preparation and writing. An experienced and skilled crew including a director, producers, director of photography, audio ...

Voiceover: There have been people living in New Guinea for at least 40,000 years – much longer than on the continents of North and South America. They’re among the most culturally diverse and ...