Uncategorized
- Earth
New analysis rejuvenates Himalayas
The Asian mountain range that includes some of the tallest peaks in the world turns out to be about 15 million years younger than geologists previously thought.
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As I recall, the Germans tried using diesels to power aircraft, but because diesels were not as responsive as gasoline-powered engines and heavier, they did not progress. That, it seems, was very fortuitous, given this surprising discovery that diesel-exhaust pollution increases with increased altitude. Anibal José da Silva Houston, Texas
- Earth
Diesels: NO rises with altitude
The combustion chemistry of heavy-duty diesel trucks changes with altitude.
- Earth
Passive smoking’s carcinogenic traces
Researchers isolated markers of a cigarette-generated carcinogen in urine of nonsmoking women married to smokers.
