Search Content | Science News

Be a Champion for Science

Get your subscription to

Science News when you join.

Search Content

E.g., 02/20/2017
E.g., 02/20/2017
Your search has returned 6 articles:
  • Feature

    In Pixels and in Health

    Moment by moment, a movie captures the action as a group of immune cells scrambles to counter an invasion of tuberculosis bacteria. Rushing to the site of infected lung tissue, the cells build a complex sphere of active immune cells, dead immune cells, lung tissue, and trapped bacteria. Remarkably, no lung tissue or bacterium was harmed in the making of this film.

    Instead...

    01/17/2006 - 12:03 Biomedicine
  • Feature

    The Power of Partitions

    Just a year before his death in 1920 at the age of 32, mathematician Srinivasa Ramanujan came upon a remarkable pattern in a special list of whole numbers.

    The list represented counts of how many ways a given whole number can be expressed as a sum of positive integers. For example, 4 can be written as 3 + 1, 2 + 2, 2 + 1 + 1, and 1 + 1 + 1 + 1. Including 4 itself but...

    12/13/2002 - 15:52 Numbers
  • Feature

    Great Computations

    Computers at home or in the office often sit idle for minutes, hours, or days at a time. The Internet now allows researchers to take advantage of this enormous reservoir of unused computer power.

    More than 1.6 million people have downloaded software to sift through signals collected by the Arecibo radio telescope in Puerto Rico as part of a search for signs of intelligent...

    09/06/2002 - 17:54 Numbers
  • Math Trek

    A Minimal Winter's Tale

    The organizers of the Breckenridge snow sculpture championships in Colorado must be getting used to having a mathematical element in their annual competition.

    For the second year in a row, a team assembled by mathematician Stan Wagon of Macalester College in St. Paul, Minn., participated in the international event. In its debut effort last year, the team...

    08/09/2002 - 15:48 Numbers
  • News

    Searchers capture a champion megaprime

    A participant in the Great Internet Mersenne Prime Search (GIMPS) has identified the largest prime number yet. When printed out, its digits would fill more than 450 pages of Science News.

    Discovered by 20-year-old Michael Cameron of Owen Sound, Ontario, the new champion prime is 213,466,917 – 1, which runs to 4,053,946 decimal digits.

    A prime is a whole number evenly divisible by...

    12/11/2001 - 11:14 Numbers
  • Feature

    A Rocky Bicentennial

    Built atop a 12th-century tower in the royal palace of Sicily, the Palermo Observatory has a commanding view of domed cathedrals, an ornate opera house, and an ancient gateway with rooftop gallery and colonnade. But what really draws the eye are the craggy mountains on the horizon.

    At noon, they frame the aqua-blue ocean as in a picture postcard...

    07/24/2001 - 10:44 Astronomy