562 results
- Planetary Science
The Whole Enceladus
Saturn's moon Enceladus has become the hottest new place to look for life in the chilly outer solar system.
- Earth
Eye of the Tiger
Recent research has upended a 130-year-old, previously unchallenged theory about how the semiprecious stone called tiger's-eye is formed.
- Humans
From the June 9, 1934, issue
Mexican archaeology, dry ice for shrinking metals, and choosing optimal flight paths for airplanes.
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19299
This article could leave the impression that the evolutionary significant unit (ESU) is the de facto concept employed for all listing decisions under the Endangered Species Act. In fact, the ESU has not been used in the vast majority of recent listing decisions under the act. Nor should it be. The act allows the National […]
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What’s Worth Saving?
A fracas over a biological term could have huge consequences for conservation.
- Earth
Candid cameras catch rare Asian cats
Remote cameras have confirmed that despite 30 years of armed conflict, jungle cats and many other large mammals continue to thrive in Cambodia.
- Materials Science
Fridge Magnets and Chemistry
Theres a tiger on your fridge! Lurking inside refrigerator magnets of the flat, flexible variety are magnetic-field stripes of alternating polarity. This University of Wisconsin Web site explains how fridge magnets work, shows how you can use such magnets to learn about magnetic force microscopy, and suggests experiments involving fridge magnets to model how metals […]
- Humans
From the October 15, 1932, issue
THE SABER-TOOTH STRIKES The artist has made a sketch of a dramatic scene involving a horselike hornless rhinoceros. It shows the poor animal attacked by a long-tailed saber-toothed tiger. The great cat is pictured as attacking much as a modern tiger or lion sometimes attacks: gripping a hard hold with its forelegs, slashing at its […]
- Animals
Butterfly ears suggest a bat influence
Researchers have found the first bat-detecting ear in a butterfly and suggest that the threat of bats triggered the evolution of some moths into butterflies.
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- Physics
Identity Check: Elusive neutrinos morph on Earth, as in space
Strengthening a challenge to the prevailing theory of particle physics, measurements of elusive particles called antineutrinos from nuclear reactors suggest that no neutrino types, be they matter or antimatter, have stable identities.
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From the January 30, 1932, issue
MONTE ALBAN TREASURE MAY SET JEWELRY STYLE The proud inhabitants of Oaxaca, in whose vicinity the Mixtec treasure tomb was found, think they are going to set the worlds jewelry styles. A casual glance at the ornaments and trinkets reveals that archaeology has already influenced modern jewelers. One of the most beautiful objects found in […]
