Uncategorized
- Humans
Genetic Artistry
To see how some artists portray the promise and perils of the Human Genome project, check out the Web sites of artists who use depictions of DNA or chromosomes, create images from genetically engineered bacteria, or take advantage of gene-mapping technology to express their ideas. Additional information about these artists can be found in the […]
- Humans
From the April 1, 1933, issue
BEER AND BREAD HAVE BEEN COMPANIONS SINCE PHARAOHS Beer and bread have been companions on man’s tables since the remotest days of antiquity. The pharaohs of Egypt drank beer with their meals, and the kings of the Babylonian city-states maintained great brewing establishments in their palaces and temples, for the pay of their servants and […]
- Math
Celebrating Artful Math
This year’s “Mathematics Awareness Month” focuses on interactions between mathematics and art. The associated Web pages feature essays, images, and more, all devoted to striking examples of highly creative activities in math and art. Go to: http://mathforum.org/mam/03/
- Math
Fractured Granite and Fractal Prints
A rectangular slab of polished granite gives an impression of solidity and permanence. With its straight lines and glossy surface, it’s an elegant, humanmade artifact meant to stand as a timeless monument or serve as an impermeable skin for a sleek skyscraper. A fractal stone print. Nat Friedman A two-sided fractal stone print by Nat […]
- Paleontology
Fossils of early salamanders found
A recent discovery of fossilized salamanders pushes back a milestone in amphibian evolution by more than 100 million years.
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Sperm show age
The quality of a man's sperm declines as he gets older.
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Sleep debt exacts deceptive cost
Moderate but sustained sleep deficits undermine alertness and other mental faculties to a potentially dangerous extent, although people who experience this level of sleep loss usually don't feel particularly drowsy.
- Health & Medicine
Passive smoking may foster kids’ cavities
Young children exposed to tobacco smoke face a greatly elevated risk of developing cavities in their baby teeth.
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Human RNA genes counted up
People possess about 250 genes that encode short RNA strands rather than DNA.
- Planetary Science
Spacecraft reveal Mars’ molten heart
Tracking the precise motion of a spacecraft orbiting Mars, planetary scientists have deduced that the core of the Red Planet is at least partially liquid.
- Health & Medicine
Prenatal marijuana exposure may pose health risks
Rats that were exposed to a marijuana-related chemical while in the womb show more memory lapses and hyperactivity than unexposed rats do.
- Earth
Ssshhh! South Pole has a new seismic station
Seismometers recently installed near the South Pole reveal that the area is the quietest spot on the planet for eavesdropping on earthquakes.
