News tagged with epoxy
SOHO watches a comet fading away
On Nov. 4, 2010, NASA's EPOXI spacecraft came within 450 miles of Comet Hartley 2, a small comet not even a mile in diameter, which takes about six and a half years to orbit the sun. Designated officially ...
Space & Earth / Space Exploration
Jul 28, 2011 |
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Research shows 'BPA-free' bottles live up to manufacturers' claims
The alarm caused by bisphenol A (BPA) presence in reusable plastic bottles resulted in a recent industry change, producing products made with supposed BPA-free materials.
Jul 11, 2011 |
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BPA lowers male fertility: report
Daily exposure to a chemical that is prevalent in the human environment, bisphenol A (BPA), causes lowered fertility in male mice, according to the results of a new study that will be presented Saturday at The Endocrine Society's ...
Jun 06, 2011 |
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At the heart of Hartley-2, a new breed of comet?
(PhysOrg.com) -- At the heart of every comet lies a remnant of the dawn of the solar system. Or is that remnants? Astronomers don't know, but the answer would give them a clearer picture of exactly how comets ...
Space & Earth / Space Exploration
May 17, 2011 |
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Researchers gain new insights into Comet Hartley 2
(PhysOrg.com) -- A tumbling comet nucleus with a changing rotational rate has been observed for the first time, according to a new paper by a Planetary Science Institute researcher.
Space & Earth / Space Exploration
May 16, 2011 |
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Parental exposure to BPA during pregnancy associated with decreased birth weight in offspring
Parental exposure to bisphenol A (BPA) during pregnancy is associated with decreased birth weight of offspring, compared with offspring from families without parental BPA exposure in the workplace, according to Kaiser Permanente ...
May 05, 2011 |
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The unexpected action of bisphenol A on the inner ear of certain vertebrates
Bisphenol A, whose impact on reproduction and development is the subject of numerous studies, induces anomalies in the inner ear of embryos of certain vertebrates. This new, completely unsuspected effect has ...
Mar 16, 2011 |
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New study links increased BPA exposure to reduced egg quality in women
A small-scale University of California, San Francisco-led study has identified the first evidence in humans that exposure to bisphenol A (BPA) may compromise the quality of a woman's eggs retrieved for in vitro fertilization ...
Dec 15, 2010 |
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Terrifying pterosaurs were fragile in flight
Pterosaurs, the largest creatures ever to take to the skies, were adept fliers in a balmy breeze but would have crashed in stormy weather, according to a study published Wednesday.
Other Sciences / Archaeology & Fossils
Nov 23, 2010 |
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Website calculates effects of various asteroid impacts
If you're curious about how big an asteroid needs to be to cause major destruction, the new "Impact: Earth!" asteroid impact calculator can tell you.
Space & Earth / Space Exploration
Nov 08, 2010 |
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Video: Flight of the comet
(PhysOrg.com) -- This video clip was compiled from images taken by NASA's EPOXI mission spacecraft during its flyby of comet Hartley 2 on Nov. 4.
Space & Earth / Space Exploration
Nov 08, 2010 |
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NASA spacecraft on final approach toward comet
(PhysOrg.com) -- The EPOXI mission spacecraft has refined its path toward a Nov. 4 flyby of comet Hartley 2, successfully performing its final maneuver today at 8 a.m. PDT (11 a.m. EDT). The spacecraft burned ...
Space & Earth / Space Exploration
Nov 02, 2010 |
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Space radar provides taste of Comet Hartley 2
Exactly one week before the world gets a new look at comet Hartley 2 via NASA's EPOXI mission, observations of the comet by the Arecibo Planetary Radar in Puerto Rico have offered scientists a tantalizing pr ...
Space & Earth / Space Exploration
Oct 29, 2010 |
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Exposure to BPA associated with reduced semen quality
Increasing urine BPA (Bisphenol-A) level was significantly associated with decreased sperm concentration, decreased total sperm count, decreased sperm vitality and decreased sperm motility, according to a Kaiser Permanente ...
Oct 28, 2010 |
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Eight days left in comet flyby countdown
(PhysOrg.com) -- NASA's EPOXI mission continues to close in on its target, comet Hartley 2, at a rate of 12.5 kilometers (7.8 miles) per second. On Nov. 4 at about 10:01 a.m. EDT (7:01 a.m. PDT) the spacecraft ...
Space & Earth / Space Exploration
Oct 27, 2010 |
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