Uncategorized
- Astronomy
Astronomers discover smallest galaxy ever
Astronomers have found the smallest galaxy yet recorded, about one-sixteenth the diameter of the Milky Way.
- Physics
Solving a 400-year-old supernova riddle
Astronomers have determined that Kepler's supernova, the last stellar explosion witnessed in our galaxy, belongs to the class known as type 1a.
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19785
Not only is the finding that nanotubes “remained in particular in the liver and spleen” of concern, but there is no indication made or concern expressed over what happens after excretion. What biological activity do these structures have in the open environment, and for how long? Can they become airborne? Do they get removed in […]
- Earth
Heating releases cookware chemicals
Nonstick coatings on fry pans and microwave-popcorn bags can, when heated, release traces of potentially toxic perfluorinated chemicals.
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19784
So we shouldn’t cook food in easily cleanable pots because we might release a little bit of maybe-not-even-toxic chemicals into the food? Because a common chemical found worldwide is merely suspected of being linked to worldwide rates of exposure? Why are our U.S. companies being forced to abandon a proven, helpful chemical? Robert CookKennesaw, Ga.
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Aging vets take stress disorder to heart
Veterans grappling for decades with post-traumatic stress disorder have a greater risk of developing and dying from heart disease than do their peers who don't suffer from the stress ailment.
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Trichomoniasis-causing organism is sequenced
Scientists have taken a first read of the genetic sequence of the organism responsible for a sexually transmitted infection called trichomoniasis.
- Earth
Aquatic Non-Scents
Many common pollutants appear to be jeopardizing the survival of fish and other aquatic species by blunting their sense of smell.
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Perchance to Hibernate
As scientists work to unravel the secrets of mammalian hibernation, they're eyeing medical applications that could aid wounded soldiers, stroke victims, and transplant recipients, among others.
- Humans
Letters from the January 27, 2007, issue of Science News
Circumcision circumspection Concerning “More Evidence of Protection: Circumcision reduces STD risk in men” (SN: 11/18/06, p. 325), I have yet to read a single study regarding the alleged benefits of circumcision that acknowledges that the foreskin is erogenous tissue. Removal of erogenous tissue from a female would be considered barbaric, even if it did offer […]
- Math
A Polyhedron with a Hole
A polyhedron with seven faces, 14 vertexes, 21 edges, and a hole makes an intriguing lamp.
