Uncategorized
- Humans
From the July 1, 1933, issue
SEVEN MUMMIES FROM TEXAS CAVE BROUGHT TO SMITHSONIAN Seven mummies preserved apparently by natural dryness of the Texas cave where they were buried, have just been received by the Smithsonian institution. The mummies shed new light on the prehistoric cave dwellers of the Big Bend region of Texas whose cave shelters have been explored in […]
- Health & Medicine
Prostate Health
Many men over age 50 rarely sleep through the night. Instead, they find themselves awake and needing to urinate when, as younger men, this rarely happened. The National Institute of Diabetes and Digestive and Kidney Diseases offers an excellent resource on the most common cause of frequent and urgent urination in men–benign prostatic hyperplasia, or […]
- Math
Theorems in Wheat Fields
It’s no wonder that farmers with fields in the plains surrounding Stonehenge, in southern England, face late-summer mornings with dread. On any given day at the height of the growing season, as many as a dozen farmers are likely to find a field marred by a circle of flattened grain. This close-up of a crop […]
- Physics
Through the Looking Glass
A proposed universe of unseen material, where every ordinary particle has a shadowy counterpart, could explain several conundrums in cosmology.
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19257
After reading your article, I am sure others must have also wondered if the “Tunguska meteor” that struck in Siberia in June 1908 might have been a mirror meteor. The mirror-asteroid strike described in the article sounds very much like descriptions of the event: tremendous energy and no impact crater. If a mirror object were […]
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- Animals
Strange Y chromosome makes supermom mice
An otherwise rare system of sex determination has evolved independently at least six times in one genus of South American mice.
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Genetic variation sways risk of diabetes
A gene carried by up to 85 percent of the people in the world increases susceptibility to diabetes by about 25 percent.
- Health & Medicine
Can poliovirus fix spinal cord damage?
Scientists have devised a version of the poliovirus that can deliver genes to motor neurons without harming them, a step toward a gene therapy that reawakens idle neurons in people with spinal cord damage.
- Paleontology
Teeth tell tale of warm-blooded dinosaurs
Evidence locked within the fossil teeth of some dinosaurs may help bolster the view that some of the animals were, at least to some degree, warm-blooded.
- Materials Science
Cathedral has weathered London’s acid rain
A decrease in acid rain seems to be responsible for newly reported reduced deterioration rates of St. Paul's Cathedral in London.
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19329
I was surprised to read about the extensive research in Puerto Rico that has found a link between phthalates in plastics and premature breast development in young girls. I was under the impression that a completely different culprit, growth hormones in chickens, was established many years ago. The article indicates that the San Juan researchers […]
