Science
drorzel | July 14, 2008The forthcoming Sizzle, Randy Olson's follow-up to the well-received A Flock of Dodos, is a movie that's trying to do three things at the same time: 1) provide some information about global warming, 2) make a point about how scientific information is presented to the public, and 3) experiment with new ways of presenting scientific information to the public. As often happens with movies that are trying to do multiple things, it's not entirely successful at any of them, but it's a worthy attempt.
The film plays as basically a cross between An Inconvenient Truth and a Christopher Guest…
drorzel | July 14, 2008In a comment on the FutureBaby betting thread, Rivka writes:
(I'm laughing at all these people who are predicting early. The average gestation for a first time mother is 41 weeks, 1 day.)
Of course, as a physical scientist, my immediate reaction to that is "If they know that, then shouldn't that be figured into the projected delivery date?" It's not, though-- we can count up the weeks, and the projected date is at exactly forty weeks.
So why doesn't the projected delivery date reflect the average gestation time for a first-time mother? As someone who has taught pre-med physics, I have an…
drorzel | July 12, 2008A couple of links about things that have turned up in my email recently:
-- As a follow-on to yesterday's post about grad school, I got an email a little while ago about Graduate Junction, a social networking/ career building site aimed at graduate students. I'm coming up on ten years of being out of their demographic, but it looks kind of cool. If you're a grad student, you might check it out.
-- The Union of Concerned Scientists is running a cartoon contest for the best editorial cartoon about the politicization of science. They've selected a dozen finalists, and now want your vote as to…
drorzel | July 10, 2008I'm currently revising the book chapter based on the original "Bunnies Made of Cheese" post, which deals with virtual particles and Quantum Electro-Dynamics. The best proof of the power of QED is the measurement of the anomalous magnetic moment of the electron, where experiment and theory agree to something like thirteen decimal places.
In double-checking things this morning, I find that the Gabrielse group has released yet another improved measurement of the electron g-factor since the last draft of this chapter. I've updated the current draft accordingly, and continue to be amazed by the…
denialism | July 8, 2008Complementing Pal's essay on Gardasil yesterday is our buddy la Pobre Habladora guest blogging on Feministe.
Which, I think, brings us to a new angle on anti-vax denialism because as Pal mentions, the motivations behind harping on Gardasil are different than the usual nonsense. Gardasil, to everyone's dismay, has become intertwined with sexual politics in this country. As the only vaccine that has been identified as preventing a sexually-transmitted disease (the HepB vaccine managed to avoid this, not to mention an association with IV-drug use) there has been a clear impetus among the anti-…
pharyngula | July 8, 2008There's a new contest you can enter: Build a Lifeform. A real one.
Yes, it can be done now…or at least, we can insert new capabilities into existing organisms. Before you get too excited, though, most of this work involves directed tweaking of phage or E. coli, which is powerful stuff, but far removed from the dream of building Kelly LeBrock in my garage.
We're going to need another decade or so before we can do that.
drorzel | July 8, 2008The final chapter of Bunnies Made of Cheese: The Book is currently envisioned as a look at the misuse of quantum mechanics by evil squirrels: qucks and hucksters of various sorts. As a result, I spent a good chunk of yesterday wading through the sewers of alternative medicine books on Amazon, using the "Search Inside This Book" feature to locate good manglings of quantum theory in the service of quackery. I feel vaguely dirty.
I also spent some time on the web page of Bob Park's favorite shills, BlackLight Power, which provides another example of the appropriation of quantum concepts for…
drorzel | July 7, 2008John Allen Paulos's Innumeracy is one of those classics of the field that I've never gotten around to reading. I've been thinking more about these sorts of issues recently, though, so when the copy I bought a few years ago turned up in our recent book-shuffling, I decided to give it a read.
Unfortunately, I probably would've been a lot more impressed had I read it when it first came out in 1988. Most of the examples used to illustrate his point that people are generally very bad with numbers are exceedingly familiar. They appear in How to Lie With Statistics, and the recent The Drunkard's…
catdynamics | July 3, 2008Science fiction is one step closer to reality as an engineer works on a LED display integrated into a contact lens
Your life flashed before your eyes - from the Grauniad
Press release from Jan '08
Babak Parviz, asst prof of EE at U Washington, is working on integrating microLEDs plus processor integrated onto a contact lens - a bionic contact lens - next step is providing power.
also in Wired earlier this year
tqa | July 3, 2008
As you may or may not know, there's been some conflict in the scientific publishing industry over the last few years. Traditional business models have been challenged by an "open-access" model, where the papers are freely available to the general public. In the traditional model, the money comes through subscription charges, and the readers pay for the privilege of access to the research. In open access publishing, the papers are freely available. The costs are covered through a variety of means, including fees paid by the authors.
Many of the traditional publishers have clearly felt…
razib | July 2, 2008Nature came out with a piece today, PLoS stays afloat with bulk publishing: Science-publishing firm struggles to make ends meet with open-access model. The title basically says it all. There have already been some negatives responses, see Mike Dunford, Alex Holcombe, Living the Scientific Life, Greg Laden, Jonathan Eisen, Drug Monkey and Frontal Blogotomy. I won't really get into the details here. I think the article makes some good factual points, but they're stitched together in a manner to depict PLoS in a rather unfavorable light. The kicker of course is that Nature has some major…
pharyngula | July 2, 2008
I'm very fond of Chris Turney's book, Bones, Rocks, and Stars. It's a slender, simple description of the many tools scientists use to figure out how old something is, and when arguing with young earth creationists, it's become the first thing I recommend to them. It's short and easy to read, and focuses on explaining how dating methods work.
Turney has a new book out: Ice, Mud and Blood: Lessons from Climates Past(amzn/b&n/abe/pwll). This is the one you'll be able to hand to climate change denialists, and it's a winner.
Its virtues are the same as his previous book, the careful…
pontiff | July 1, 2008One of the subjects of great debate in physics goes under the moniker of "the arrow of time." The basic debate here is (very) roughly to try to understand why time goes it's merry way seemingly in one direction, especially given that the many of the laws of physics appear to behave the same going backwards as forwards in time. But aren't we forgetting our most basic science when we debate at great philosophical lengths about the arrow of time? Aren't we forgetting about...experiment? Here, for your pleasure, then, are some of my personal observations about the direction of time which I've…
oracknows | July 1, 2008Yesterday, I was depressed. Today I'm a little irritated.
I'm irritated because I came across a study from a couple of weeks ago that's actually a really cool study that applies actual science to the question of how diet and lifestyle changes might alter biology to improve health. It's exactly the sort of study that can apply help understand how diet affects health. It's a study by Dean Ornish, who's widely known for his advocacy of a lifestyle-driven approach to treating atherosclerotic coronary artery disease and producing evidence in the early 1990s that such a lifestyle alteration could…
pharyngula | June 30, 2008
We've heard the arguments about the relative importance of mutations in cis regulatory regions vs. coding sequences in evolution before — it's the idea that major transitions in evolution were accomplished more by changes in the timing and pattern of gene expression than by significant changes in the genes themselves. We developmental biologists tend to side with the cis-sies, because timing and pattern are what we're most interested in. But I have to admit that there are plenty of accounts of functional adaptation in populations that are well-founded in molecular evidence, and the cis…
grrlscientist | June 28, 2008tags: Unified Field Theory, humor, poetry, physics, Tim Joseph
Einstein's last blackboard notes in his office shortly before his death in 1955.
Seeking the Unified Field Theory consumed his last years.
A friend sent this amusing little story of why we do not have a "Unified Theory of everything" in physics (which is one of its goals) and why we likely never will. I've actually seen it before, but have been unable to find the original author to attribute it to.
Unified Field Theory
In the beginning there was Aristotle,
And objects at rest tended to remain at rest,
And objects in motion…
awild | June 27, 2008
Yesterday's unexpectedly intense monsoon storms brought several inches of rain and flash floods to Tucson. Many of our desert ants cue their mating flights with the onset of the summer rains, and this morning the Forelius were flying, congregating in dense swarms that twirled and twisted above the desert floor.
Males emerge from the nest, ready to go:
photo details: (flight photos) Canon 100mm f2.8 macro lens on a Canon 20D
ISO 100, f/2.8, 1/800sec exposure
(close-ups) Canon MP-E 65mm macro lens on a Canon 20D
ISO 100, f/13, 1/250sec exposure, twin flash diffused through tracing…
drorzel | June 27, 2008Over at Science After Sunclipse, Blake has a very long post about the limitations of science blogs. Brian at Laelaps responds, and Tom at Swans On Tea agrees.
You might be wondering whether I have an opinion on this. Since I'm going to be talking about it at a workshop in September (first talk, no less...), I better have some opinions..
The original post is very long, but can probably best be summarized by the following paragraph:
My thesis is that it's not yet possible to get a science education from reading science blogs, and a major reason for this is because bloggers don't have the…
pharyngula | June 27, 2008
The paleontologists are going too far. This is getting ridiculous. They keep digging up these collections of bones that illuminate tetrapod origins, and they keep making finer and finer distinctions. On one earlier side we have a bunch of tetrapod-like fish — Tiktaalik and Panderichthys, for instance — and on the later side we have fish-like tetrapods, such as Acanthostega and Ichthyostega. Now they're talking about shades of fishiness or tetrapodiness within those groups! You'd almost think they were documenting a pattern of gradual evolutionary change.
The latest addition is a description…
pharyngula | June 26, 2008
This is an amphioxus, a cephalochordate or lancelet. It's been stained to increase contrast; in life, they are pale, almost transparent.
It looks rather fish-like, or rather, much like a larval fish, with it's repeated blocks of muscle arranged along a stream-lined form, and a notochord, or elastic rod that forms a central axis for efficient lateral motion of the tail…and it has a true tail that extends beyond the anus. Look closely at the front end, though: this is no vertebrate.
It's not much of a head. The notochord extends all the way to the front of the animal (in us vertebrates, it…