Archive for March, 2009

Following a Moon Shadow

Monday, March 30th, 2009

Cassini is now well into the “Cassini Equinox Mission”, a two-year mission following the completion of its successful four-year prime mission last summer. The scientific theme driving the equinox mission is to observe seasonal changes throughout the system as Saturn has its vernal equinox (the moment when the Sun crosses Saturn’s equator, moving from south to north). The equinox occurs shortly after midnight (Universal Time) on August 11, 2009 (the evening of August 10 in American time zones). The actual moment of equinox is not critically important because of the finite size of the disk of the Sun as seen from Saturn and the relatively slow pace of Saturn’s orbit around the Sun (29.66 years for a Saturnian year). This means there is an equinox season of weeks to months during which the rings are nearly edge-on to the Sun. One aspect of this of interest to ring scientists is that any deviations out of the ring plane will result in long shadows on the rings. By measuring the shadows we can get very accurate measurements of these small vertical perturbations which are otherwise hard to see. An early look at this sort of phenomenon is visible in the picture below in which the shadow of one of Saturn’s moons is clearly visible on the ring. The extent of the moon shadow, combined with our already precise knowledge of the relative positions of the Sun, Saturn, and the moon, will enable imaging team scientists to better constrain the inclination of the orbit of the moon. Soon, small ripples in the rings will cast shadows and, in a sense, become visible for the first time.

PIA11650
Saturn’s moon Epimetheus casts a shadow on the outer portion of the A ring as Saturn nears equinox. Image: NASA/JPL/SSI

Much Ado About AIG and Earmarks

Thursday, March 19th, 2009

Earmarks made up less than 2% of the recently passed spending bill. The $165 million in bonuses for AIG executives is a much smaller fraction of the TARP funds (roughly $700 billion) already spent, not to mention the additional funds that will be directed to the financial industry. Is this really the most important thing for the media and congress to be working on?

Watchmen

Wednesday, March 11th, 2009

The adaptation of the graphic novel (English is missing a good name for this kind of “comic book”; the French “bande dessinee” is a better fit) “Watchmen” into a movie is famous for a number of reasons. Its author, Alan Moore, refused any credit for the movie, and said “The ‘Watchmen’ film sounds like more regurgitated worms. I for one am sick of worms.” (The illustrator of the graphic novel, Dave Gibbons, is credited on the movie.) The idea of making a movie from the “Watchmen” comic series worked its way around Hollywood for years before finally making it to the screen, but not before a high profile lawsuit between eventual co-distributors Warner Brothers and Paramount Pictures. Its director, Zack Snyder, made waves with the distinctive look of his previous comic book adaptation “300″. And it features a glowing blue nude dude.

I have not read the graphic novel or comic books or whatever it should be called, and after seeing the movie I am not inclined to do so. But I’m not a fan of comic books and would never have even heard of Watchmen the book were it not for the movie, let alone have read it. It is certain that the readership of “Watchmen” will increase as a result of this big budget movie. This makes Moore’s principled stand against movies ironic, to put it charitably. The movie has some undeniable visual flair, but in attempting to remain faithful to the source material, Snyder and his screenwriters David Hayter and Alex Tse have rendered a movie that is overly long for the story at its core. The back stories of the Watchmen (more on them in a second) are told with more detail than necessary to serve the story and the characters. Jackie Earle Haley’s voiceover is so long and gravelly in the first act that it is hard not to tune it out.

I liked the premise of superheroes being flawed heroes, and that is the basis of the alternative history of “Watchmen”. They are an informal group of crimefighters built on the model of Batman: no superpowers in principle, but effectively superhuman in strength and speed and an arsenal of nifty weapons and vehicles. Unlike Batman, though, they have messy personal lives and not all are possessed of Batman’s unwavering sense of moral clarity, with the exception, perhaps, of Haley’s Rohrshach who wears a nifty ink blot mask but is most entertaining when he is kicking ass as an unmasked inmate. In spite of his slight build, Rohrshach beats men twice his size in hand to hand combat. The real Batman lookalike is Nite Owl II (Patrick Wilson), who is a real do-gooder, but also kind of lazy and not very confident. It’s a cute premise. Thrown into this mix of all-too-human masked men and women is the truly superhuman and unmasked man, Dr. Manhattan, a superhero with a more traditional comic hero origin story featuring an accident and radiation. His evolution away from humanity is one of the more interesting aspects of the story. Less compelling is the actual story itself which deals with the threat of nuclear war and someone killing the now-retired Watchmen. It loses a bit of relevance perhaps due to its alternate history setting where the U.S. and U.S.S.R. are enmeshed in a show of saber-rattling that only Dr. Strangelove could appreciate.

He’s Just Not That into You

Saturday, March 7th, 2009

I was pleasantly surprised by this movie. Produced by Drew Barrymore’s producing partner Nancy Juvonen, who also produced Fever Pitch, another unconventionally good romantic comedy, He’s Just Not That into You rises above its awkward title. It is populated by a large ensemble of rich and beautiful people (Jennifer Aniston, Jennifer Connelly, and Ginnifer Goodwin (narrowly averting a Jennifer-trifecta with her unconventional spelling), Ben Affleck, Scarlett Johansson, and more), who nevertheless struggle with their romantic lives, showing the rest of us ordinary folk that money can’t buy me love. But it sure does make for nice parties, and restaurants, not to mention the yacht that Affleck (I’m sure his character had a name) moves to after an absurd disagreement with Aniston over the merits of marriage (which are numerous, but never mentioned) and its drawbacks (which, apparently, are that it’s an unnecessary bit of legalism - an argument that falls completely flat in an age where a class of citizen is desperately fighting for the legal protections of marriage).

But there are touching and funny moments in the screenplay by Abby Kohn and Marc Silverstein. Goodwin plays the central character, an irrepressibly optimistic and cheerful young woman who cannot find a boyfriend. It would have been nice if at least some of her non-starter romances had been due to the man being a loser, which seems to me to be a much more realistic scenario than this intelligent pretty woman failing to excite interest in the men she meets on various set-up dates. Connelly and Bradley Cooper play the movie’s only married couple, but not happily so. Cooper is seduced by Johansson’s sultry singer while Connelly obsesses not over his fidelity, but whether or not he is sneaking cigarettes on the side. Gigi (Goodwin), gets lousy advice from her girlfriends, and excellent advice on the callow and simple nature of men from a restaurant manager or owner or bartender or some combination of those (who is rich and has a lot of one-night stands). The best moments, like those in Fever Pitch, are when the characters are completely honest with each other, but still have to make difficult decisions about how to handle their relationships. It avoids the classic gimmick of romantic comedies where conflict is not inherent to the relationship but merely a result of misunderstandings and deceptions. These characters have real issues: Is a marriage worth saving? Is a marriage worth starting when one is uncertain about the virtues of the institution? Will the flighty person settle down and commit? There are no profound answers to these questions in the movie, but at least they are confronted honestly.