Uncategorized
- Humans
NIH tightens its ethics rules
The National Institutes of Health issued new ethics rules to keep its employees from engaging in potentially questionable relationships with organizations that might have a financial interest in NIH activities or policies.
- Math
Life on the Scales
A mathematical equation helps explain life processes on all biological scales, from molecules to ecosystems.
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19512
Your article reminded me that taking a bird’s song and transposing it down four octaves makes it sound like a whale’s song. The opposite is also true. To hear this, go to http://www.mind.net/music/birdwhaleDemo.mp3. Todd BartonAshland, Ore. The article would imply that the only anomaly to the theory that mass equates to longevity is that large-dog […]
- Chemistry
Chemistry au Naturel
Chemists aim to mimic natural systems with the hope of developing more-efficient chemical processes that are also less harmful to the environment.
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- Humans
From the February 2, 1935, issue
Crystal stalagmites from winter rain, evidence for early inhabitants in Texas, and a new transmission system for electric power.
- Tech
Nanotech Facts
The National Nanotechnology Initiative has a Web site devoted to “Nanotech Facts.” It provides an introduction to nanotechnology and a brief description of its many applications and potential societal implications. Go to: http://www.nano.gov/html/facts/home_facts.html
- Tech
Outsmarting the Electronic Gatekeeper: Code breakers beat security scheme of car locks, gas pumps
Because designers flouted a well-known rule for making cryptographic systems impenetrable, automakers and other businesses have embraced a wireless security technology that's vulnerable to attack.
- Animals
Bad Breath: Insects zip air holes to cut oxygen risks
The need to avoid overdosing on oxygen may drive certain insects to shut down their breathing holes periodically.
- Materials Science
Petrified wood: Quick and easy
Materials scientists have turned wood into stone in a matter of days, mimicking a natural process that takes millions of years.
- Health & Medicine
There’s the Rub: Football abrasions can lead to nasty infections
U.S. football players who get scrapes and cuts from playing on artificial turf sometimes develop bacterial infections that are resistant to some antibiotics.
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A Bug’s Life: E. coli can’t escape old age
Bacteria that divide symmetrically, once thought to be functionally immortal, may age and die just like other organisms do.
