Say goodbye to sunspots?
Say goodbye to sunspots?
Say goodbye to sunspots?
Category: Points of Information
Very brief descriptions, with appropriate links, of current or recent news items.
Say goodbye to sunspots?
Government high speed railroad and elections
The federal government’s very expensive and probably unnecessary project to build a high speed railroad line between two cities in Wisconsin — using stimulus money — is having a significant influence on the elections there. Key quote:
With the U.S. economy in shambles and our national debt strangling the country, it doesn’t bode well for Feingold that he supported the wildly unpopular health-care bill, which [challenger] Johnson wants repealed, as well as last year’s big clunker, the stimulus bill. Feingold’s support for the unfunded and bottomless money pit of [high speed rail] doesn’t appear to be working for him either. If an entrenched insider like Feingold loses, it could have serious ramifications for the future of high-speed rail across the country. [emphasis mine]
The federal government’s very expensive and probably unnecessary project to build a high speed railroad line between two cities in Wisconsin — using stimulus money — is having a significant influence on the elections there. Key quote:
With the U.S. economy in shambles and our national debt strangling the country, it doesn’t bode well for Feingold that he supported the wildly unpopular health-care bill, which [challenger] Johnson wants repealed, as well as last year’s big clunker, the stimulus bill. Feingold’s support for the unfunded and bottomless money pit of [high speed rail] doesn’t appear to be working for him either. If an entrenched insider like Feingold loses, it could have serious ramifications for the future of high-speed rail across the country. [emphasis mine]
Water that smells bad might be toxic
Science discovers the obvious! The US Geological Survey has learned that if water looks and smells bad, you probably shouldn’t drink it.
Science discovers the obvious! The US Geological Survey has learned that if water looks and smells bad, you probably shouldn’t drink it.
Space Makes Polymers Hard
The harsh environment of space, normally hostile to most materials, acts beneficially to cure certain epoxy resins. Key quote:
“You don’t have to take it up there in the shape that you eventually want,” said University of Sydney physicist Marcela Bilek, a co-author of the new study. “You can take something in a packaged form, all folded up, and then inflate it in space and have it cure into a mechanically solid structure.”
Read the research paper here.
The harsh environment of space, normally hostile to most materials, acts beneficially to cure certain epoxy resins. Key quote:
“You don’t have to take it up there in the shape that you eventually want,” said University of Sydney physicist Marcela Bilek, a co-author of the new study. “You can take something in a packaged form, all folded up, and then inflate it in space and have it cure into a mechanically solid structure.”
Read the research paper here.
UCLA backs off firing politically incorrect professor
Good news for science: UCLA has backed off from its plan to fire a politically incorrect professor, giving Dr. James Enstrom an eight month reprieve as it reviews his case.
Good news for science: UCLA has backed off from its plan to fire a politically incorrect professor, giving Dr. James Enstrom an eight month reprieve as it reviews his case.
Scientists predict when the first Earthlike planet will be discovered
Don’t bet the bank on this: In a preprint paper posted tonight on the astro-ph website, scientists predict the discovery of the first Earthlike extrasolar planet — using statistical analysis alone! Fun quote:
Using a bootstrap analysis of currently discovered exoplanets, we predict the discovery of the first Earth-like planet to be announced in the first half of 2011, with the likeliest date being early May 2011.
Don’t bet the bank on this: In a preprint paper posted tonight on the astro-ph website, scientists predict the discovery of the first Earthlike extrasolar planet — using statistical analysis alone! Fun quote:
Using a bootstrap analysis of currently discovered exoplanets, we predict the discovery of the first Earth-like planet to be announced in the first half of 2011, with the likeliest date being early May 2011.
More data suggests ocean conveyor belt more complex than expected
Back to the climate-theory drawing board: A paper published today in Nature Geoscience suggests that the ocean conveyor belt that brings warm water to the northern Atlantic is far more complex than the original theories proposed. These results strengthen earlier reports that also questioned the conveyor belt theory.
Back to the climate-theory drawing board: A paper published today in Nature Geoscience suggests that the ocean conveyor belt that brings warm water to the northern Atlantic is far more complex than the original theories proposed. These results strengthen earlier reports that also questioned the conveyor belt theory.
The pain of spacesuit gloves
The number one injury reported by astronauts appears to be fingernail and hand injuries resulting from the use of spacesuit gloves. Key quote:
A previous study of astronaut injuries sustained during spacewalks had found that about 47 percent of 352 reported symptoms between 2002 and 2004 were hand related. More than half of these hand injuries were due to fingertips and nails making contact with the hard “thimbles” inside the glove fingertips. In several cases, sustained pressure on the fingertips during EVAs caused intense pain and led to the astronauts’ nails detaching from their nailbeds, a condition called fingernail delamination.
The number one injury reported by astronauts appears to be fingernail and hand injuries resulting from the use of spacesuit gloves. Key quote:
A previous study of astronaut injuries sustained during spacewalks had found that about 47 percent of 352 reported symptoms between 2002 and 2004 were hand related. More than half of these hand injuries were due to fingertips and nails making contact with the hard “thimbles” inside the glove fingertips. In several cases, sustained pressure on the fingertips during EVAs caused intense pain and led to the astronauts’ nails detaching from their nailbeds, a condition called fingernail delamination.
14 objects discovered beyond Neptune
Using archival Hubble Space Telescope images astronomers have discovered 14 objects orbiting the Sun beyond Neptune. Key quote:
The newfound objects range from 25 to 60 miles across (40 to 100 kilometers), said the researchers.
Using archival Hubble Space Telescope images astronomers have discovered 14 objects orbiting the Sun beyond Neptune. Key quote:
The newfound objects range from 25 to 60 miles across (40 to 100 kilometers), said the researchers.
Dawn’s status as it heads to Vesta
All systems go! The project engineer of the Dawn mission has posted a very detailed update (as of August 30), describing the spacecraft’s status in its journey to the asteroid Vesta.
All systems go! The project engineer of the Dawn mission has posted a very detailed update (as of August 30), describing the spacecraft’s status in its journey to the asteroid Vesta.
WhiteKnightTwo back in the air
Good news for private space! Scaled Composites put WhiteKnightTwo back in the air today, only three weeks after one of its landing gears failed during a landing. You can read the test flight logs here.
Good news for private space! Scaled Composites put WhiteKnightTwo back in the air today, only three weeks after one of its landing gears failed during a landing. You can read the test flight logs here.
ISS’s life expectancy
Engineers are reviewing the life expectancy of the International Space Station, in light of the desire of politicians to keep it operating through the 2020s. Intriguing quote:
Airlines and airplane contractors commonly inspect aircraft for such fractures, but with the space station out of reach more than 200 miles up, engineers rely on complex models to predict their growth in orbit.
Engineers are reviewing the life expectancy of the International Space Station, in light of the desire of politicians to keep it operating through the 2020s. Intriguing quote:
Airlines and airplane contractors commonly inspect aircraft for such fractures, but with the space station out of reach more than 200 miles up, engineers rely on complex models to predict their growth in orbit.
shuttle variation alive?
The space war over NASA continues. The Orlando Sentinel has an article today selling the merits of the Team Direct concept that would use most of the shuttle hardware to replace it.
The space war over NASA continues. The Orlando Sentinel has an article today selling the merits of the Team Direct concept that would use most of the shuttle hardware to replace it.
More on the natural bridge on the Moon
Paul Spudis at Air and Space magazine has some more thoughts about the origins of that natural bridge on the Moon that Lunar Reconnaissance Orbiter photographed recently.
Paul Spudis at Air and Space magazine has some more thoughts about the origins of that natural bridge on the Moon that Lunar Reconnaissance Orbiter photographed recently.
The Sun is blank again
The Sun is spotless again. By this stage in the ramp up to solar maximum, such things should no longer be happening.
The Sun is spotless again. By this stage in the ramp up to solar maximum, such things should no longer be happening.
The variability of stars according to Kepler
More data from Kepler! In a paper [pdf] published today on the astro-ph website, scientists outline Kepler’s census of the variability of stars. Key quote from the abstract:
We have separated the sample in 129,000 dwarfs and 17,000 giants, and further sub-divided, the luminosity classes into temperature bins corresponding approximately to the spectral classes A, F, G, K, and M. G-dwarfs are found to be the most stable with < 20% being variable. The variability fraction increases to 30% for the K dwarfs, 40% for the M and F dwarfs, and 70% for the A-dwarfs. At the precision of Kepler, > 95% of K and G giants are variable.
More data from Kepler! In a paper [pdf] published today on the astro-ph website, scientists outline Kepler’s census of the variability of stars. Key quote from the abstract:
We have separated the sample in 129,000 dwarfs and 17,000 giants, and further sub-divided, the luminosity classes into temperature bins corresponding approximately to the spectral classes A, F, G, K, and M. G-dwarfs are found to be the most stable with < 20% being variable. The variability fraction increases to 30% for the K dwarfs, 40% for the M and F dwarfs, and 70% for the A-dwarfs. At the precision of Kepler, > 95% of K and G giants are variable.
Amateur detection of Jupiter impact
The detection in June by two different amateur astronomers of an impact on Jupiter bodes well for asteroid/comet research. You can read the actual paper here. [pdf] Key quote from the abstract:
A systematic study of the impact rate and size of these bolides can enable an empirical determination of the flux of meteoroids in Jupiter with implications for the populations of small bodies in the outer Solar System and may allow a better quantification of the threat of impacting bodies to Earth. The serendipitous recording of this optical flash opens a new window in the observation of Jupiter with small telescopes.
The detection in June by two different amateur astronomers of an impact on Jupiter bodes well for asteroid/comet research. You can read the actual paper here. [pdf] Key quote from the abstract:
A systematic study of the impact rate and size of these bolides can enable an empirical determination of the flux of meteoroids in Jupiter with implications for the populations of small bodies in the outer Solar System and may allow a better quantification of the threat of impacting bodies to Earth. The serendipitous recording of this optical flash opens a new window in the observation of Jupiter with small telescopes.
John Wilcox dies
Updated and bumped: John’s obituary can now be read here.
John Wilcox, the man most responsible for finding the connection between Kentucky’s Mammoth Cave and the Flint Ridge Cave system and thereby producing the world’s longest cave system, died today after a three week long illness. To quote Roger Brucker, co-author of The Longest Cave, Wilcox “was known for his systematic approach to exploration and laser-like focus on detailed mapping.” R.I.P.
Updated and bumped: John’s obituary can now be read here.
John Wilcox, the man most responsible for finding the connection between Kentucky’s Mammoth Cave and the Flint Ridge Cave system and thereby producing the world’s longest cave system, died today after a three week long illness. To quote Roger Brucker, co-author of The Longest Cave, Wilcox “was known for his systematic approach to exploration and laser-like focus on detailed mapping.” R.I.P.
Boeing and Space Adventures team up
Boeing, which is now building its own private space capsule, and Space Adventures, the company that flies tourists to space, are apparently teaming up. More details will be announced at a press conference is scheduled for next week.
Boeing, which is now building its own private space capsule, and Space Adventures, the company that flies tourists to space, are apparently teaming up. More details will be announced at a press conference is scheduled for next week.
The last journey of Discovery begins
The last journey of the space shuttle Discovery begins.
The last journey of the space shuttle Discovery begins.
Mapping extrasolar planets
The mapping of the atmospheres and surfaces of some extrasolar planets, even at distances of many light years, is now possible.
The mapping of the atmospheres and surfaces of some extrasolar planets, even at distances of many light years, is now possible.
China’s next lunar probe
Set to launch before year’s end, construction of China’s next lunar probe, Chang’e 2, appears to be on schedule, at least according to Chinese news sources.
Set to launch before year’s end, construction of China’s next lunar probe, Chang’e 2, appears to be on schedule, at least according to Chinese news sources.
Mike Griffin speaks out again
The space war continues. Mike Griffin gave a speech today where he once again attacked the Obama administration’s proposals for NASA.
The space war continues. Mike Griffin gave a speech today where he once again attacked the Obama administration’s proposals for NASA.
Pakistan floods ease Atlantic hurricanes?
A new climate theory: The Pakistani floods and Russian heatwave this summer might explain why the hurricane season going on right now in the North Atlantic started off so slow.
A new climate theory: The Pakistani floods and Russian heatwave this summer might explain why the hurricane season going on right now in the North Atlantic started off so slow.
The magnetic field flips
Back to the drawing board! Though the theories say it can’t happen that fast, scientists have found evidence that 16 million years ago the Earth’s magnetic field flipped polarity in less than five years. Even more depressing for the theorists is that this is the second such fast flip researchers have discovered.
Back to the drawing board! Though the theories say it can’t happen that fast, scientists have found evidence that 16 million years ago the Earth’s magnetic field flipped polarity in less than five years. Even more depressing for the theorists is that this is the second such fast flip researchers have discovered.
Campus administrator shuts down conservative group
Freedom of speech alert: Despite having gotten permission to be there, campus officials ejected students and members of the Young American’s for Freedom from the Palm Beach State College campus during club rush, apparantly because the officials disagreed with the students’ literature. Key quote:
On the day of club rush, officials approached the group and after seeing information about the organization and its ideals criticizing Barack Obama’s economic policy, Ms. Ford-Morris was visibly disturbed by the material presented, published by the Heritage Foundation, criticizing President Obama’s administration. College officials then called the campus police to assure the group left campus. Ms. Ford-Morris denied having ever talked to Ms. Beattie about giving permission to the organization to be a part of PBSC club rush.
Update: The name for Young American’s for Freedom has been corrected. Thank you, readers!
Freedom of speech alert: Despite having gotten permission to be there, campus officials ejected students and members of the Young American’s for Freedom from the Palm Beach State College campus during club rush, apparantly because the officials disagreed with the students’ literature. Key quote:
On the day of club rush, officials approached the group and after seeing information about the organization and its ideals criticizing Barack Obama’s economic policy, Ms. Ford-Morris was visibly disturbed by the material presented, published by the Heritage Foundation, criticizing President Obama’s administration. College officials then called the campus police to assure the group left campus. Ms. Ford-Morris denied having ever talked to Ms. Beattie about giving permission to the organization to be a part of PBSC club rush.
Update: The name for Young American’s for Freedom has been corrected. Thank you, readers!
Deep Impact gets its first look at next comet target
Deep Impact gets its first look at its next target, Comet Hartley 2. The closest approach is set for November 4.
Deep Impact gets its first look at its next target, Comet Hartley 2. The closest approach is set for November 4.
Senate to hold hearings on gun regulation
We’re here to help you: The Senate Judiciary Committee, by order of its chairman Patrick Leahy (D-Vermont), will hold hearings on September 14 to review the regulation of firearms in commerce.
We’re here to help you: The Senate Judiciary Committee, by order of its chairman Patrick Leahy (D-Vermont), will hold hearings on September 14 to review the regulation of firearms in commerce.
Scientists develop tractor beam
Scientists develop first tractor beam, although it can only move tiny objects less than two yards. Worse, “because this technique needs heated gas to push the particles around, it can’t work in the vacuum of outer space like the tractor beams in Star Trek.”
Scientists develop first tractor beam, although it can only move tiny objects less than two yards. Worse, “because this technique needs heated gas to push the particles around, it can’t work in the vacuum of outer space like the tractor beams in Star Trek.”
Shuttle launchpad to close
Launchpad 39B, where 53 shuttle launches took place, is about to be torn down.
Launchpad 39B, where 53 shuttle launches took place, is about to be torn down.