Uncategorized
- Math
Pentomino Battleships
Many of you are probably familiar with the two-player, pencil-and-paper (or electronic) game known as Battleships. There are 12 different pentominoes, each one consisting of five adjacent squares. Traditionally, each pentomino is identified by the letter of the alphabet that it roughly resembles. On separate 10-by-10 grids of squares, each player deploys a fleet consisting […]
-
From the November 18, 1933, issue
“ROSETTA STONE” OF PREHISTORIC AMERICA Frank M. Setzler of the Smithsonian Institution is shown pointing to a little pottery bowl which he likens to the Rosetta Stone of the Nile because it is decorated with two kinds of art design, one known and the other unknown. Together with other discoveries made under Mr. Setzlers direction […]
-
Common Cold
This Web site offers a wide range of material concerning the common cold. The available information includes an overview of how the cold virus invades the human body and how cold symptoms are caused. The site also has pages on preventing colds and about some of the complications that can occur. Check out the special […]
- Materials Science
No Assembly Required: DNA brings carbon nanotube circuits in line
Using DNA as a scaffold, researchers have devised a simple way of creating carbon nanotube transistors—a feat that paves the way for more complex circuits made from these nanomaterials.
-
Whales of Distinction: Old specimens now declared a new species
Japanese researchers have named a new category of living baleen whales to explain puzzling specimens dating back to the 1970s.
-
19287
This article refers to “Japanese research-whaling ships” that “capture” whales. Reputable scientists and environmentalists agree that the Japanese whaling industry operates primarily for slaughter, not research, in violation of antiwhaling treaties respected by virtually all nations. Science News shouldn’t use the propaganda terms favored by those who would drive cetaceans to extinction. Ken PaffDetroit, Mich.
- Planetary Science
Giant picture of a giant planet
The Saturn-bound Cassini spacecraft has taken the sharpest global portrait of Jupiter ever obtained, showing the planet's turbulent atmosphere in true color.
-
19286
Sounds like this article is on to a fertile field of inquiry. But why were all the subjects who were tested for racial bias white? I suggest that people of other colors be tested, too. In my experience, racial bias cuts many ways. Anne JonesShawnee Mission, Kan.
-
Bias Bites Back: Racial prejudice may sap mental control
White people who hold biased attitudes toward blacks experience a decline in the ability to monitor and control information after brief interracial encounters, a new study suggests.
- Physics
Quantum Pileup: Ultracold molecules meld into oneness
Scientists have for the first time transformed molecules into an exotic state of matter called a Bose-Einstein condensate.
- Earth
Pieces of a Pulverizer? Sediment fragments may be from killer space rock
Scientists sifting sediments laid down just after Earth's most devastating mass extinction 250 million years ago may have found minuscule fragments of the extraterrestrial object that caused the catastrophe.
- Health & Medicine
Rebuilding the Heart: Marrow cells boost cardiac recovery
Inserting a person's own bone marrow stem cells into an ailing heart via a catheter can improve heart and lung function in such patients.
