Logo IMG

Volume 92 | Number 2 | March-April 2004

String Theory

Eleanor Robson

Gary Urton unravels the mysteries of khipu, the complex knotted-string records kept hundreds of years ago by the

A Scientific Entrepreneur

Bruno Strasser

A new biography of geneticist George Beadle, who worked with three different model organisms in less than 20 years, shows that his transitions from maize to fruit flies to fungus proved crucial to his intellectual contributions

Beyond the Law

Eric Stover

In a scientifically advanced, affluent age, why are so many of the world's poor deprived of access to health care? Paul Farmer has some answers

Total Records : 14


Connect With Us:

    Pinterest Icon Google+ Icon Twitter Icon Facebook Icon Sm

Pizza Lunch Podcasts

African Penguins"Penguins are 10 times older than humans and have been here for a very, very long time," said Daniel Ksepka, Ph.D., a North Carolina State University research assistant professor. Dr. Ksepka researches the evolution of penguins and how they came to inhabit the African continent.

Because penguins have been around for over 60 million years, their fossil record is extensive. Fossils that Dr. Ksepka and his colleagues have discovered provide clues about migration patterns and the diversity of penguin species.

Click the Title to view all of our Pizza Lunch Podcasts!

Subscribe to Free eNewsletters!

  • Sigma Xi SmartBrief:

    A free daily summary of the latest news in scientific research. Each story is summarized concisely and linked directly to the original source for further reading.

  • American Scientist Update

  • An early peek at each new issue, with descriptions of feature articles, columns, Science Observers and more. Every other issue contains links to everything in the latest issue's table of contents.

  • Scientists' Nightstand

  • News of book reviews published in American Scientist and around the web, as well as other noteworthy happenings in the world of science books.

    To sign up for automatic emails of the American Scientist Update and Scientists' Nightstand issues, create an online profile, then sign up in the My AmSci area.

Subscribe to American Scientist