The Corrs – No Frontiers
An evening pause:
An evening pause:
In a paper published today in Geophysical Research Letters of the American Geophysical Union, scientists describe how they have been able to produce remarkably detailed images of the ground buried almost a mile under the ice sheet of Greenland. These radar techniques are the same used in the past by spacecraft to image the hidden surface of Venus, only far more sophisticated.
This image from the paper compares the radar image of the Greenland surface (on the left) to an photograph of a known surface feature in the Northwest Territories of Canada, produced thousands of years ago by the giant icesheets of the last Ice Age. Both are at the same scale, about a third of a mile across, and are looking at the surface at an oblique angle of about 45 degrees. With the radar-produced image on the left, sunlight is simulated as coming from the right, with the elevation increasing as the colors go from green (lowest) to yellow to brown to purple (highest).
The long grooves, generally 30 to 100 feet deep and extending sometimes several miles, are produced as the icesheet slides across the ground. In the radar image, however, these grooves are slowly being ground out now.
It is the resolution of this technique that is so exciting. That they can look through ice almost a mile thick and resolve objects that are only tens of feet across tells me that someday it will be possible for spacecraft to map the smallest features on the surface of Venus or Titan. More exciting, this suggests that the technology will one day exist to even map the unknown surface of gas giants like Jupiter or Saturn, and do it in breathtaking detail.
Yowza!
What does this tell us about the quality of his journalism degree? A freelance writer and journalism graduate of Columbia University has been caught fabricating material for an article in the Village Voice.
From Watts Up With That: Data from the Argos ocean floats says that the Earth’s climate, as measured by the heat content of the ocean, has been cooling since 2001, not warming as predicted by climate models. You can download the actual science paper, “The Energy Balance of Earth,” here.
An evening pause: This video doesn’t quite get you to the top, but it definitely gives you a feel for the spectacular nature of the hike.
It ain’t just NASA that’s having budget problems: The lack of a budget from Congress is going to delay the launch of two civilian NOAA weather satellites by more than a year.
Some squeals from the right: Don’t cut defense.
As much as I think it necessary to aggressively fight the wars we are in, I have no doubt that the budget of the Defense Department could be trimmed by significant amounts, without harming our capabilities in the slightest.
More please, especially in places like Iraq, Iran, and Pakistan! Thousands of Egyptian Muslims show up in Coptic Christian churches to act as “human shields.”
The battle begins: The House Budget Chairman, Paul Ryan, says that all spending bills will be written to exclude all funds for ObamaCare.
As I say, expect the squealing to be loud.
Freedom of speech alert! Fire’s speech codes for the year of 2010 and for January 2011. For the yearly “award,” get these rules::
UMass Amherst’s policy on “Rallies” has special regulations applicable to what it calls “controversial rallies”โand it leaves “controversial” wholly undefined, giving the administration unfettered discretion to invoke the policy when it sees fit. If a rally is deemed controversial, it may only take place between noon and 1 p.m. on the Student Union steps, and must be registered at least five days in advance. That’s just one hour a day on one tiny area of a campus of more than 27,000 students! Worse yet, the policy also requires that when holding a controversial rally, “The sponsoring RSO [Registered Student Organization] must designate at least 6 members to act as a security team.” In other words, student groups wishing to publicly express a controversial opinion on campus must give at least five days notice, may only do it on one small area of campus for one hour a day, and must be willing to put themselves in harm’s way by acting as their own security in order to do so.
More progress: Two House bills have been introduced to eliminate funding for NPR and the Corporation for Public Broadcasting.
Stand by for loud squealing.
Progress! The House today approved rules for debating the repeal of ObamaCare, with a vote expected on January 12. Note that some Democrats voted in favor of this bill, indicating that it has some bipartisan support.