Monday, March 31, 2008
Saturday, March 22, 2008
Fish Are Jumpin
Why do stingrays and other aquatic creatures leap through the air?
From Slate's Explainer:
http://www.slate.com/id/2187114/
Posted by JBanholzer at 5:11 AM 0 comments
Thursday, March 6, 2008
Golfer faces criminal charges for killing hawk with shot
http://www.usatoday.com/sports/golf/pga/2008-03-06-isenhour-hawk_N.htm?loc=interstitialskip
"According to court documents, Isenhour got upset when a red-shouldered hawk began making noise, forcing another take. He began hitting balls at the bird, then 300 yards away, but gave up. Isenhour started again when the hawk moved within about 75 yards, Florida Fish and Wildlife Conservation Commission officer Brian Baine indicated in a report.
Isenhour allegedly said, "I'll get him now," and aimed for the hawk."
Sphere: Related ContentPosted by JBanholzer at 7:38 PM 0 comments
Tuesday, March 4, 2008
Saturday, March 1, 2008
NASA Baffled by Unexplained Force Acting on Space Probes
"Mysteriously, five spacecraft that flew past the Earth have each displayed unexpected anomalies in their motions.
These newfound enigmas join the so-called "Pioneer anomaly" as hints that unexplained forces may appear to act on spacecraft.
A decade ago, after rigorous analyses, anomalies were seen with the identical Pioneer 10 and 11 spacecraft as they hurtled out of the solar system. Both seemed to experience a tiny but unexplained constant acceleration toward the sun.
A host of explanations have been bandied about for the Pioneer anomaly. At times these are rooted in conventional science — perhaps leaks from the spacecraft have affected their trajectories. At times these are rooted in more speculative physics — maybe the law of gravity itself needs to be modified.
Now Jet Propulsion Laboratory astronomer John Anderson and his colleagues — who originally helped uncover the Pioneer anomaly — have discovered that five spacecraft each raced either a tiny bit faster or slower than expected when they flew past the Earth en route to other parts of the solar system."
'Humble and perplexed'
article continues:
http://www.space.com/scienceastronomy/080229-spacecraft-anomaly.htmlSphere: Related Content
Posted by JBanholzer at 3:54 PM 0 comments