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Science Saturday: Astronomical Edition
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It is important to say: Phil Plait! About time.
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BTW, Carl: You got a shoutout right on this site from BH.tv community member Nate for your own recent stellar debunking work. (Well, more terran than stellar, to be picky.) And Phil: Congrats on the Time Top 25 Award. (Is PZ jealous?) |
Some links mentioned
-- Phil's many times updated, data-aggregating post on the Texas fireball
-- Phil's "what we know so far" post, summarizing the above -- Phil's update, with video of the fireball. (The runners are hilarious -- looks like a panicked mob quelled with a massive infusion of Xanax.) -- video of the Edmonton meteorite, as captured by a police dashboard camera |
Re: Science Saturday: Astronomical Edition
Zimmer is awesome; very informative. Please have him on more often.
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Buzz Aldrin
In case you have not seen it, the video of 78 year old Buzz Aldrin clocking 34 year old Bart Sibrel. I don't think it is a good idea to call someone like Aldrin "a coward and a liar and a thief."
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Slight correction - this happened on September 9, 2002, when Buzz was much younger - 72. From Phil's post on the incident: Quote:
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Fun diavlogue, but I think Plait's enthusiasm carried him away at times. He gets the causality of fear of terrorism backwards- people didn't just shrug after 9/11 until color coded warnings appeared and started scaring them, color coded warnings appeared because people were scared and the government needed to look like it was doing something to address that.
The LHC thing was also a facile dismissal of people's fears. I don't doubt that the current calculations show it to be impossible, but these are the calculations that have already been done wrong at least once. To pretend like there's no chance they were messed up again just costs you credibility with anyone who's thinking critically about what you're saying. |
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The guys responsible for creating all of the noise were clowns with no legitimate point. |
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Some new blood for the science section! Let's see if they can keep up with the two old turtles. ;)
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Awesome diavlog. Although I would have expected John or George to host something on "skepticism." But Carl was great and Phil was a great new face. I look forward to part 2, and 3...
Note to our bloggingheads overlords: this is the second or third diavlog in as many days where several links or items mentioned were not shown in the sidebar. |
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Yeah, I noticed that too. Though I prize my position at the zenith of bloggingheads dingalink-dom, I'm also itching for new DL's.
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There are regularly higher energy collisions (by orders of magnitude) in the upper atmosphere than will ever be achieved by the LHC. The cumulative magnitude of those collisions so dwarfs the LHC's potential that the net increase caused by the LHC is essentially zero. There's nothing unique or extraordinary enough about it to have warranted the concerns. |
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So, not being very scientifically inclined but interested nonetheless, I try to keep up with Science Saturdays and clicked on Phil’s Bad Astronomy link. And what do I see on the front page immediately? A music video tribute set to my favorite-est TV show of all time – FireFly! Here I am trying to learn something tangible about astronomy and right away I get sucked into what seems to be an homage to Inara Serra, the space courtesan. I tried! I can only grasp one scientific item at a time so the video was all I came away with from the site, but I’ll make another attempt maybe next week.
I also recently bought Carl’s Parasite Rex based on everyone’s raves a while back. I’m still not sure if I got it because I want to read it or I want to be the kind of person who reads it, but I know that I’ll read it. |
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I highly recommend, either before reading or after, listening to Carl's appearance on This American Life, conducted right after P. Rex was released. Listening to Ira Glass get progressively more horrified is hilarious. That interview was what spurred me to buy the book. If you're pressed for time, Carl's part is Act II, starting at 24:30, but the whole show is good. |
The Last Word on the LHC
Via Joanne Hewitt: from Abstruse Goose.
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Wow, really enjoyed this. I keep looking forward to Science Saturday bhtv more and more; We need an occasional Science Wednesday or something to help me make it through the week.
Definitely get Phil back here sometime; He was excellent! |
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Ira Glass asks - "Mr. Zimmer, whose side are you on?" Ira goes on to call Parasite Rex "the perfect reading material if you ever want to have a long talk with an eight year old boy." |
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Fox could have had a gold mine on their hands with that one, but really screwed the pooch in how they handled it. (meddling with production, not airing the pilot to set up the characters and airing the others out of order, etc.) I keep hoping they will make a sequel to Serenity (or better yet a trilogy), but I am expecting disappointment. |
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Jeez, thprop. Ever heard of putting SPOILER ALERT at the top of a post like that?
;^) |
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Wondering if Bad Astronomy was the same website that I saw years ago which did things like explain why the hilariously bad opening of Contact (the film) was bad science. I may have it confused with another.
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Maybe you were thinking of the right site, but another movie? Why did you think the opening of Contact was "hilariously bad?" |
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Totally stealing that. |
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Whither ' taken out of context' ? I've also have noticed this . . . very perturbing. (Will I actually have to start posting substantive comments now?!) And, even worse: the 'highlights' that have been published the last couple of weeks on the main page have been stolen from user generated content! 'Bankers aren't pirates' was from one of our fellow posters (can't remember who right now) and 'Costly Inquiry' was stolen from, well . . . ME.
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"Those of you familiar with my reviews know that I take a dim view of science errors in movies. However, I loved ``Contact'' and so I am willing to give it more leeway. Does that sound unfair? Too bad! It's my website!" As a lifelong film fan this has always been one of my pet peeves, reviewers willing to overlook bad filmmaking because they approve of the message. The message in Contact struck me as rather hollow and silly, but I think Jonathan Rosenbaum says it much better than I. Whether it's space nannies prompting early man to bash each other over the heads with bones, or extraterrestrials sucking an earthling across the galaxy to plant them in the middle of Club Med, ham-handed space philosophy has always lowered the value of space travel fiction. |
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However, to be precise, the movie came out in 1997. (Hard to think that "twelve years ago" only gets you back to the late '90s, isn't it?) Quote:
To my mind, the opening sequence of Contact is excusable because it gets across a point key to a later part of the story -- that Earth's radio transmission leakage has been going on for decades -- succinctly, and as importantly, in a visually appealing way. To the latter point, I find this sequence to be in the same spirit as the opening title sequence of the original Star Trek series -- obviously, a spaceship does not make a whooshing sound, but adding it in makes the scene more dramatic. To the former, I'll recall that the most frequent complaint I heard about Jurassic Park was the expository scene where the hows and whys of the genetic engineering were presented. I didn't mind it, but the consensus seemed to have recoiled in horror, being reminded perhaps of past science classes. So, directors are always looking for didactic shortcuts, and I give them a pass when it's only a supporting point serving some larger one, and I think Phil did, too. Rosenbaum's review was good (thanks for the link) and I agree with his starting thesis, that MiB is arguably better, in part because of the way it deals with adhering (or not) to plausible scientific extrapolation. However, I'd say that if you go into a movie already predisposed to dislike it, as Rosenbaum did due to his distaste for Zemeckis and Forrest Gump, it's no great feat to pick it apart. (And by the end of the review, he seems to have taken the opportunity to vent his dislike for a whole lot of other things, which got tedious.) I went into Contact not having seen Gump, and more importantly, having read and loved the book, so I wasn't looking to nitpick the scientific failings. (I was more bothered by the obeisance to the First Law of Hollywood -- that every movie must have a plain vanilla love story. It would have been more to my taste to portray Joss the way he was in the book, where he and Arroway did have a relationship that grew in complexity, and was all the more interesting because it wasn't driven by hormones.) There was one gaffe that did strike me when I first saw the movie. I went to see the movie the day it was released, with a bunch of friends from work, all of us playing hooky. We were all in the business of using computers to do signal processing. In the scene where the alien message is first noticed, and the people pounding keyboards in the room are able to respond to Arroway's commands and -- clickety, clickety, clickety -- instantly filter and otherwise process the data, and produce gee-whiz graphics to boot, our entire group erupted in laughter, much to the mystification of those around us. It's always hard to say when one is being righteously critical and when one is guilty of nerdgassing. And, as I said above, the dividing line is further blurred by how one goes into a given movie. So, I can accept your beefs as beefs, and not unjustified quibbles, but I, like Phil, was not bothered by them. Did you read the book? The book is way better. One last thing: Quote:
It seems that you're more sensitive to political undertones than I am when it comes to movies. Unless I'm being beaten over the head with a message, I usually miss what other people see. I guess I mostly go to the movies with the same mindset I adopt when I read thrillers: just entertain me by telling a good story. I suppose I'm not really a film fan in the sense that you are. Anyway, again I'll ask, did you read the book? (I presume we're talking 2001 here.) I thought Clarke presented the aliens not so much as nannies but as gardeners (and I think he used that exact word) -- where they found the seeds of intelligence in their travels around the galaxy, they'd add a little fertilizer to help it grow. Their motivations are not so much directing those they help along any particular path as seeing what they'll turn into once they get smarter. In the book, the immediate consequences of the brain boost from the monolith are a lot more detailed, and have almost nothing to do with clubbing each other over the head. In general, I think we're on the same page as far as impatience with how most major scifi movies are made. Unfortunately, I don't think we'd get to see very many of this genre if the directors were allowed to appeal only to our sensibilities. I try, therefore, when I go to see a major Hollywood scifi flick to put the nerd-critic part of my brain in neutral, but I have to admit, if I start not liking the movie for other reasons, I'll fully indulge putting it into overdrive. |
Re: Science Saturday: Astronomical Edition
These guys talk about creationism and the lunar landings in the same breath. The first is subject to scientific enquiry but the second is not. The fact is that most people are scared to death of being thought of as crackpots and are therefore unwilling to admit to doubts about whether man has ever walked on the moon. It is also true that there would have been a major political motive for faking the landings. There is also no way of proving that the landings did in fact take place. If, using the same technology available in the 1960s, NASA (or anybody) is able to replicate the landings, that would take the wind out of the sails of the lunar-skeptics. Until that is done, there is enough reason to be skeptical. If these guys are real skeptics, they should be willing to explore the evidence that runs contrary to popular opinion. It is simply not enough to debunk unpopular theories by questioning the evidence presented -- true science involves finding your own evidence and subjecting it to rational enquiry.
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Creationism is a belief in something for which there is a reasonable argument, given the way our brains are wired, for which there is no evidence. You either accept by faith that there is/was a Creator or you do not. One can make a scientific case against the Young Earth variant, and one can also make a scientific case that we have no need of the Creator hypothesis to explain evolution or even the beginning of life, and one can even believe in the scientific explanations and still not be dissuaded from thinking that a Creator set up (and maybe even watches over) the whole system. However, one cannot even begin to make a case that would disprove the existence of a Creator. This, fundamentally, is the objection to teaching Creationism in a science class: because it is not amenable to the rules of scientific enquiry. By contrast, the question of whether the Moon landings were real or faked is indeed amenable to being discussed according to the rules of science. We have a boatload of evidence, from rocks to video tape to eyewitnesses, and when all of that is taken into account, we can reach for the first tool in any scientist's toolbox: Occam's Razor. That is, given everything we have at hand, is it more parsimonious to believe the landings really did happen, or that a conspiracy involving millions of people operating over the better part of two decades has still not sprung a leak? You're perfectly free to believe the latter, and insist that the giant pile of evidence fails to prove anything, but this is even more non-scientific than the feeblest bleatings of the Discovery Institute. And no. I am not going to debate the "reasons" you have for being "skeptical" about the Moon landings. Go read Phil Plait. |
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I will ignore your insults but the fact is that your conviction that the lunar landings did take place is based on your wish to believe, not the 'mountain' of evidence that presumably exists. All this sounds very much like religious faith to me, i.e. unprovable. Unfortunately, that is what has characterized the debate on over the lunar landings -- an unwillingness on the part of the 'believers' to accept that there is no way of proving that the event did in fact take place unless it is replicated using the same technology that presumably got us there in the first place.
And, by the way, it wasn't my intention to argue that creationism could be proven correct, just the opposite. The basic tenets of the biblical account - the earth being 7,000 year old etc, can be shown by modern science to be incorrect. |
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That was nicely presented, Brendan. (Hobby horse alert!) I'd add a few small observations. The opening radio sequence was metaphorical, not literal - just a device to help make obvious the point of the sequence. In that sense it's really not unscientific, just poetic license. It's forgivable for exactly the same reason that an audible space explosion is not. That is, it exists to get across a valid (and necessary to the plot) scientific idea to the audience.
Think about General Grievous, the wheezing alien in Revenge of the Sith, cackling as he's ejected into vacuum and competently maneuvers himself into an escape vehicle, or the insta-blooming "Genesis Planet" in The Search For Spock. Annoying physics blunders exist as failures of the imagination. Occasionally exaggerating an effect, or inventing a speculative physical law that fundamentally interacts with the plot really aren't sins if they're carefully crafted and serve a purpose. |
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