Uncategorized
- Chemistry
Bacteria send out molecular scrounger for copper
Scientists have discovered the organic molecule that bacteria use to take up copper, which the microbes then use to chemically crack methane.
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19461
Far from being a pathology, the eye cast noted in this article is exactly what one would expect for a right-eye-dominant artist. A dominant eye would see itself directly in a mirror but would observe the other eye looking at an angle away from the median. Before concluding that Rembrandt had an anomalous visual condition, […]
- Humans
Rembrandt’s eye saw no depth
The 17th-century Dutch artist Rembrandt lacked stereoscopic vision, an optical analysis of his self-portraits suggests.
- Health & Medicine
Hepatitis B vaccine linked to MS
People who develop multiple sclerosis are more likely than others to have received a hepatitis B vaccination in recent years.
- Materials Science
Heat-controlled implant delivers insulin on demand
The field of drug delivery is literally heating up, with the development of a new polymer implant that releases insulin in response to changes in temperature.
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19460
Astronomers and physicists seem to speak of black holes as though they took matter completely out of the universe. An evaporating black hole would not fizz away into nothingness. It would lose energy and reappear in normal space as a very dense object (complete with information). Someone might consider this when discussing quasars. Nancy ParkerCaldwell, […]
- Physics
Information, Please
Understanding whether the information swallowed by black holes is destroyed forever may provide physicists with new clues for unifying gravity and quantum theories.
- Tech
Hungry for Nano
The food industry is turning to nanotechnology as it searches for innovations that could bring safer, healthier, and tastier products to consumers.
- Math
Sunlight Speckle
Lasers are not the only light sources that can produce a speckle pattern on a rough surface.
- Humans
From the September 15, 1934, issue
Magnificent Mt. Rainier, high-altitude rockets, and how motion pictures change children's attitudes.
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Click and Clone
The Genetic Science Learning Center at the University of Utah has an interactive Web site that teaches the basics of somatic cell cloning, the type of cloning used to create Dolly the sheep. The central focus of the click-and-clone exercise—to clone a brown mouse named Mimi—is based on a real experiment performed by researchers at […]
- Health & Medicine
Motor Ways: Gene mutation impairs muscle coordination
Scientists have identified a gene mutation that appears to cause the motor impairment that occurs in a rare disorder called Joubert syndrome.
