Uncategorized
-
Obesity hormone tackles wound healing
The hormone leptin, which seems to have many roles in the body including regulating fat storage, may speed the healing of wounds.
- Physics
Lasers act on cue in electron billiards
Electrons torn from atoms by a laser beam can shoot back into the atom and knock loose other electrons like balls in a billiard game, a finding that may have applications in nuclear fusion, particle acceleration, and fundamental physics experiments.
- Chemistry
Powerful explosive blasts onto scene
Researchers have synthesized what could be the most powerful nonnuclear explosive known.
- 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.
- Astronomy
Hubble Space Telescope: Eye wide open
Two months after the failure of a fourth gyroscope shut it down, and 3 weeks after a shuttle crew paid it a service call, the Hubble Space Telescope is back in business.
-
19080
This article fails to point out interesting aspects of the land and ocean temperature data shown in the article. During the period from about 1918 until 1943, land and ocean temperatures rose at a rate of about 18C per millennium. From 1943 until about 1975, the temperature was constant or declined slightly. A period of […]
- Earth
As globe warms, atmosphere keeps its cool
Scientists confirm a confusing discrepancy between temperatures at Earth's surface and in its atmosphere.
- Health & Medicine
Oxygen limits infections from surgery
Giving patients extra oxygen during and shortly after colorectal surgery halves the incidence of infection.
-
19079
It’s always risky to assert that a particular study has never been conducted. The research may have been done and, worse, the researcher may come across the assertion. This article claims, “Long-term studies of tough boys have yet to be conducted.” In 1987, we reported a 9-year follow-up of 25 boys (Contributions to Human Development […]
-
Popular Boys Show Their Tough Side
Some highly aggressive boys may become popular figures in their elementary school classes and wield much influence over classroom discipline.
-
From the January 18, 1930, issue
HUGE SHOVEL CAN LIFT CAR OF COAL The largest shovel in the world, with a scoop big enough to pick up an automobile, is the subject of our cover illustration. It is in use at the Fidelity mine of the United Electric Coal Co., near DuQuon, Ill., the greatest coal-stripping enterprise in the world. Electrically […]
- Computing
Scouring the Web
Looking for the perfect Web search engine? It probably doesn’t exist, but you can find out the strengths, weaknesses, and quirks of various Net-scouring tools at the “Search Engine Showdown” Web site, maintained by Montana State University librarian Greg R. Notess. Check out the inconsistencies report and sample tips for efficient searching. Go to: http://www.notess.com/search/
