4 days until The Giant’s Shoulders #4!

The start of a new month means it’s time for a reminder that there’s 4 days until The Giant’s Shoulders #4, to be held on October 15th at Second Order Approximation.  Entries can be submitted, as always, through blogcarnival.com.  Let’s try and make it a big one!

Posted in General science, Science news | Leave a comment

h-index of 12 and 1,000 comments!

Today marked two milestones related to my scientific career.  First, according to the Web of Knowledge, my ‘h-index‘ finally hit 12!  The h-index (Hirsch number) is a rough measure of both the productivity of a scientist and the impact of his/her research.  It is defined as:

A scientist has index h if h of his Np papers have at least h citations each, and the other (Np – h) papers have at most h citations each.

In my case, an h-index of 12 means that I have 12 papers which have been cited 12 or more times by other scientists.

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Posted in Personal | 1 Comment

Valancourt Books continues its evil plot to free me of my money!

Anyone who’s been reading this blog for a while knows that I’m a big fan of Valancourt Books, especially their excellent reprints of classic works by Richard Marsh.  Well, I’ve been trying to cut back on my book buying recently, and what do they do?  They release a limited-edition volume of some of Richard Marsh’s rarest stories, just in time for Halloween!  Aaargh!

By the way, take a look at the cover of last year’s special edition — there’s something very odd about it — and then read the description!

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John McCain: Angry, anti-science miser

As the economic crisis has deepened, McCain’s biggest talking point about the economy has been the proliferation of “earmarks” in government, those state projects that legislators add to Federal budget requests for their home states.   For me, a discussion of earmarks during the current economic crisis has made McCain look incredibly out-of-touch, evenly dangerously so.  After all, as Obama pointed out, earmarks amount to $18 billion, and the current economic crisis will cost at least $700 billion.  McCain sounds very much like a man who, when he sees the wheels coming off his moving car, comments on how the cigarette lighter needs to be fixed.

One comment jumped out at me during the second debate, and I was reminded of it by a post on The Greenbelt; railing against earmarks again, McCain said,

He voted for nearly a billion dollars in pork barrel earmark projects, including, by the way, $3 million for an overhead projector at a planetarium in Chicago, Illinois. My friends, do we need to spend that kind of money?

The problem is, that “overhead projector” that McCain refers to is in fact the primary planetarium projector for the Adler Planetarium in Chicago, the country’s first planetarium, built in 1930.  The Planetarium issued the following statement in response:

To clarify, the Adler Planetarium requested federal support – which was not funded – to replace the projector in its historic Sky Theater, the first planetarium theater in the Western Hemisphere. The Adler’s Zeiss Mark VI projector – not an overhead projector – is the instrument that re-creates the night sky in a dome theater, the quintessential planetarium experience. The Adler’s projector is nearly 40 years old and is no longer supported with parts or service by the manufacturer. It is only the second planetarium projector in the Adler’s 78 years of operation.

Science literacy is an urgent issue in the United States. To remain competitive and ensure national security, it is vital that we educate and inspire the next generation of explorers to pursue careers in science, technology, engineering and math.

Senator McCain’s statements about the Adler Planetarium’s request for federal support do not accurately reflect the museum’s legislative history or relationship with Senator Obama.

So McCain apparently thinks that funding a building that promotes science education is something to be ridiculed.  His statement wasn’t accidental; he’s criticized planetarium funding as “foolish” before.

I couldn’t imagine my respect for McCain sinking any lower than it already had, but his stance that science education for kids is a waste of taxpayer money dropped him into the category of “vile, angry, anti-science miser.”

If I were the Obama camp, I would be hammering the McCain campaign about this:

McCain: science education is “foolish”

Posted in ... the Hell?, Politics, Science news | 4 Comments

Optical coherence tomography and the art world

ResearchBlogging.org
In recent years, scientific tools have been increasingly applied to the study of artwork, for numerous reasons: determination of authenticity, determination of provenance, analysis for restoration, or even for finding ‘hidden’ art buried behind or underneath existing masterworks.  Some time ago, Jennifer at Cocktail Party Physics wrote a fascinating post on the use of X-ray imaging for the latter application.

Around that same time, an entire issue of Applied Physics A was devoted to the “Science and Technology of Cultural Heritage Materials: Art Conservation and Restoration.”  The first paper in the issue is an overview of “Optical coherence tomography in art diagnostics and restoration,” by P. Targowski, B. Rouba, M. Góra, L. Tymińska-Widmer, J. Marczak and A. Kowalczyk.  Though it has been a few months since the paper’s release, I wanted to write a bit about optical coherence tomography and how it is being used in the analysis of artwork.

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Posted in Optics | 2 Comments

Wonderful views of Earth From Above

Boston.com has a wonderful collection of images from the Earth From Above exhibit, which has been put on display in various cities since 1994 and is coming to NYC.  To quote the official website,

Yann Arthus-Bertrand’s mission was to create a photographic record of the natural world at the start of a new millennium. The collection of 160 images takes viewers off the ground and into the air to witness a bird’s-eye view of the extraordinary patterns and colours created in landscapes all over the world. Some are the result of human activity – farming, industry or habitation. Others are entirely sculpted by nature itself. None of these images could be seen or even imagined if you were standing on the ground.

I got a chance to see one incarnation of this (outdoor) exhibit while I was living in Amsterdam.  It was put on display outside the “Stopera” (combination city hall/opera house), and I wandered through many times.  More pics can be seen at Bertrand’s website, and they are informative as well as awe-inspiring.

Posted in Entertainment, General science | Leave a comment

Dracula’s forefathers: Lord Ruthven, Varney and Carmilla

The depiction of the vampire which we see in most of contemporary horror fiction has its roots in Bram Stoker’s Dracula (1897).  Of course, vampires have lurked in the shadows of folklore through recorded history, and Stoker drew upon that folklore in the development of his own tale.

It is worth noting, and not generally appreciated, though, that Dracula was not the first vampire in literature, nor even the first popular vampire in literature.  There were at least 3 precursors, or forefathers, to the modern vampire, stretching back to a dreary summer night in Lake Geneva in 1816, which also produced one of the other great monsters of literature.

Let’s take a look at each of these monsters, their origin, and a little of their influence on the character of “The Count”.

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Posted in Horror | 8 Comments

Don’t vote! Reverse psychology at its finest

Via Americablog, I found this wonderful video which lays down the importance of voting… by having Hollywood-types encouraging you not to vote!  It’s nice to see a video which is entertaining and pointed simultaneously.  Posting this video is my way of passing along the message to ‘5 friends’:

P.S. I got my updated voter registration card in the mail yesterday, which prompted me to dance around, mocking the fiancée (whose new card has not yet arrived), “I get to vo-ote… you do not get to vote!”

Posted in Politics | 5 Comments

13 days until The Giant’s Shoulders #4!

The start of a new month means it’s time for a reminder that there’s 13 days until The Giant’s Shoulders #4, to be held on October 15th at Second Order Approximation.  Entries can be submitted, as always, through blogcarnival.com.

Get cracking on those classic science entries!

Also, keep an eye on the TGS website; I’m planning a mini ‘contest’ to be held next month there, for the enterprising and artistic types…

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Physics, guitars and pitch harmonics

One of the fun parts about being a scientist is running across “day-to-day” phenomena which can be understood much better using a little bit of one’s knowledge.  One of these I’ve had bouncing around in my head for a while: the idea of ‘pitch harmonics’ on guitar.

I started playing the guitar about a year and a half ago on a whim.  Deciding that I spent too many evenings in front of the television doing nothing, I marched into the local music store and declared that I wanted to learn guitar, and needed the works: guitar, case, and lessons!  I have a really excellent instructor named Toby, and my knowledge of guitar has increased rapidly, if not my technique.

Anyway, what is a pitch harmonic?  Here’s a short audio clip of me playing the first few notes from Pearl Jam’s Jeremy (an .mp3 file):

If you can get past the quality of the guitar playing, you’ll notice that the last two notes of the riff have a completely distinct sound from the first few.  Those are the pitch harmonics, which are played differently on the guitar from other notes.  We discuss the physics of them below the fold…

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Posted in Physics | 19 Comments