Saturday, February 2, 2013

Continuing on with a LotR theme....

Yes, we've all thought it:

And, yes, I've heard the arguments against it:


  • "What about the Ringwraiths? They have flying mounts!"
    Sure, but there was a window of opportunity after they were flushed away at the fords that they became a non-issue. They had to make their way back to Mordor, assume new forms, and take up mounts. That would have taken time.
  • "Gandalf couldn't just summon the Eagles whenever he pleased. Gwaihir tended to intervene when it suited him."
    True. Although the films depict Gandalf summoning Gwaihir via moth (once in The Hobbit and once in The Fellowship of the Ring), the books depict Gwaihir and his fellow Eagles spotting a situation they didn't like and intervening of their own accord.  Could Gandalf have convinced him to help? Maybe.
  • "Flying to Mordor would be too far."
    True enough. After Gwaihir plucks Gandalf from the top of Orthanc, it is mentioned that he cannot carry Gandalf very far, so he takes him only as far as Edoras. But, the journey to Mordor could have been conducted in stages.
  • "The book would have been far too short then, and the characters wouldn't have had opportunity for full development."
    There we go. The real answer.

Sunday, January 20, 2013

Genealogy + Tolkien = Far Too Much Time Burned

This is what happens when a genealogy enthusiast spends time reading Tolkien.

While on a binge of re-reading The Hobbit, The Lord of The Rings, and The Silmarillion, not to mention finally getting around to reading The Children of Húrin and Unfinished Tales (with the first five volumes of The Histories of Middle-earth still waiting in the wings), I grew a bit weary of constantly looking up characters to remind myself of their relationships to other characters. Sure, Tolkien threw in plenty of genealogical charts, but they are segmented in such a way that masked their interrelationships. I wanted to remedy that. And, well, here is the result. (Be sure to click to Argonathenate.)
[Now updated to include Galathil, brother of Celeborn and father of Nimloth.]

I alway knew that Aragorn's ancestry was rich and complex, but I had never before noticed just how many wreaths there were in his family tree.

Sunday, October 7, 2012

2013: A Great Year for Comet Viewing

2013 is shaping up to be a banner year for stargazers wanting to get an up close and personal view of comets.

First up in March, we will be treated by a view of Comet Pan-STARRS (C/2011 L4), named for the Panoramic Survey Telescope and Rapid Response System, the telescope which first spotted it back in June of last year. It is expected to have a peak magnitude somewhere in the range from +1 to -1.

But that is just the warm-up act. The real show will be in December, when Comet ISON (C/2012 S1) puts in its appearance. Discovered just last month by Vitali Nevski and Aryom Novichonok, participants in the International Scientific Optical Network. This newcomer is thought to be fresh from the Oort cloud. Having never made a close approach to the Sun, it should put on a particularly bright show as its outer shell vaporizes and forms a tail. Some estimates optimistically predict that it might shine as brightly as the full Moon!


For more information on Comet Pan-STARRS:

For more information on Comet ISON:

Thursday, June 7, 2012

The Feynman Interviews

The late Richard Feynman has long been a hero of mine, not only for his contributions to his field (his path integral approach to quantum electrodynamics revolutionized modern physics), but also for his skill at communicating advanced concepts in simple terms, his love for tackling problems for the simple joy of finding the answers, and for his general zest for life.

The Niels Bohr Library & Archives with the Center for History of Physics has posted the transcripts of a series of interviews conducted with Feynman in 1966. These rambling interviews touch upon all aspects his life (at least up to that point in his life - there was much more afterwards), and are a fascinating read. Many of the anecdotes presented should be familiar to readers of the many books about Feynman's life, but it is particularly nice to have them presented in the man's own words.


Tuesday, April 10, 2012

The Centenary of the Sinking of RMS Titanic

Image courtesy of Wikimedia Commons
On April 10, 1912, the RMS Titanic, pride of the White Star Line, departed Southampton, England, bound for the City of New York. As all the world knows, she never arrived at her destination. At 11:40 P.M. (ship's time, three hours behind GMT) on the evening of April 14, 1912, lookout Frederick Fleet called out "Iceberg right ahead." Less than a minute later, as the crew scrambled to alter course, the infamous collision took place. At 2:20 A.M. the next morning, the lumbering hulk of the Titanic slipped beneath the waters of the North Atlantic, claiming the lives of an estimated 1,514 individuals. Over a thousand of those were still aboard when she went down. The remainder succumbed to hypothermia in the frigid waters. There were only 710 survivors in all.

It is no understatement that the sinking of the Titanic marked something of an end to an age of innocence. Coming at the end of the Second Industrial Revolution, the launch of the Titanic carried with it an air of hubris, a seemingly unbreakable faith in mankind's mastery over Nature via steel and steam. The technology of Industry reigned supreme. Until Titanic. And it is no small irony that among those who lost their lives in the disaster were among the leading industrial magnates of the era, including Jacob Astor IV and Benjamin Guggenheim (a fact which tends to overshadow the deaths of throngs of poor and working class passengers trapped below decks in steerage). That night, the human race was given a lesson in humility.

To be fair, neither White Star nor the ship's builders claimed the ship to be unsinkable. That label was applied by the press (and largely after the sinking). But neither the line nor the builders really made an effort to disabuse the public of the notion that the Titanic was unsinkable. After all, it was great advertising. And, to exacerbate the situation, Titanic carried only a third of the lifeboats needed to accommodate her maximum crew and passenger complement, and the crew was inadequately trained in emergency procedures. Coupled with the skipper, Edward Smith, driving her forward at full speed that night, despite having received wireless warnings of icebergs in the vicinity, the end result was almost inevitable.

In retrospect, it was simple for maritime engineers to spot the design flaw which permitted Titanic's unthinkable fate. The superstructure of the ship was divided into sixteen "watertight" compartments. However, these compartments were not sealed at the top. The collision opened five of these compartments to the sea. As they filled, the bow was lowered by the weight of the seawater being taken aboard, until that seawater was able to start spilling over into each adjacent compartment, setting up a chain reaction of flooding compartments which eventually doomed the vessel. Eventually, the sinking bow lifted the stern out of the water, which resulted in the stern section breaking off under its own weight, accelerating the sinking of the behemoth.

Furthermore, metallurgical analysis of the iron rivets retrieved from the wreckage suggests that they were manufactured with an unacceptably high slag content, rendering them more brittle than they should have been. Had stronger rivets been used in the construction, damage from the collision might have more localized, potentially to the point of only four of the watertight compartments being exposed to the sea, a condition which she could have conceivably survived. (Of course, this is pure speculation. It is difficult to say with certainty, as the portion of the hull which came into contact with the iceberg is buried under the silt of the sea floor, rendering direct examination of the damage impossible at this time.)

As with most catastrophic engineering disasters, error compounded error, setting up a cascade of failures. And, sadly, the elimination of any one of those errors could have made a tremendous difference in the outcome. But hindsight cannot save those already lost.


For more info:

Friday, March 30, 2012

Film Review: "John Carter"

Long a fan of the pulp fiction of Edgar Rice Burroughs, perhaps best known as the creator of Tarzan, I had eagerly awaited the release of Disney's production of John Carter, based upon Burroughs' first Barsoom (Mars) novel, A Princess of Mars. Well, except for the Disney part. I must admit that Disney's involvement had me a little apprehensive. Clearly, the film wouldn't be a Frazetta painting brought to life. Oh well. But the fact remains that a novel which had served as a childhood inspiration for some of the greatest science fiction and fantasy writers of the 20th century, not to mention several generations of fans, was being brought to the big screen, and that is reason enough for excitement.

Despite the film's weak box office performance (the word "flop" is being routinely bandied about) and the less than impressive trailers, I was pleasantly surprised. John Carter is a fun film, quite effectively capturing the adventure and spirit of the original pulp novel. Certainly, the characters were somewhat two-dimensional, but that is not surprising considering the source material. It was a pulp novel, after all. If anything, the writers for the film managed, to their credit, to give the female lead, Dejah Thoris (ably portrayed by Lynn Collins), somewhat more depth than the original, making her more independent and resourceful than the stereotypical damsal in distress that she was in the books (and thus more palatable for modern audiences). The John Carter character himself is also given some more depth, at least in terms of exhibiting character growth as the film progresses. The Carter of the book is unchanging, constantly honor-bound to fight against injustice. The Carter of the film, played by Taylor Kitsch, has a few personal demons to confront, and by and large is only interested in getting home until later in the story, when he realizes, motivated both by love and a sense of honor, that he must do the right thing.  Sadly, that love aspect, the kindling of feelings between Carter and Dejah Thoris, isn't well explored, and is rolled out in the story in a somewhat perfunctory and pro forma fashion, as are many of the aforementioned improvements in Carter's character.

Overall, the film remains astonishingly faithful to the book, although there are some major differences, and I can quite readily see why most of those changes were made. For starters, the film transforms the Therns from the book The Gods of Mars into beings who turn out to be an advanced alien race not indigenous to Barsoom. Travelling from world to world, the Therns manipulate the historical development of the civilizations they encounter (including, it would seem, that of Earth), seemingly feeding upon the chaos they introduce.  This change allows the filmmakers to not only introduce a stronger overall story arc to the film, but also allow them to correct one of the weakest aspects of the book: how John Carter got to Barsoom.

In the book, Carter travelled to Barsoom by means of, well, essentially wishing himself there. The best way to describe the process would be astral projection, but with the added benefit of actually having a material body at the other end of the journey. This rather unsatisfactory explanation is replaced in the film with a bit of advanced Thern technology, consisting of what is basically a transporter which constructs a copy of the body at the destination, leaving the true body in a state resembling death.

Another major change is the transformation of the city of Zodanga into a moving city, striding across the Martian landscape and consuming resources as it goes. Whether the purpose of this change was to simply introduce a bit of visual spectacle or to make the Zodangans seem a bit more nefarious is unclear, but perhaps it was a bit of both.

Whatever the motivations, the filmakers did an effective job of bringing to life the Barsoom of Burroughs' imagination, which in turn reflects the Mars imagined by Percival Lowell. And it looks like a fascinating place to visit, provided that one stays on the good side of the Tharks.

Wednesday, March 28, 2012

The 411 on the PPACA

As the Supreme Court tussles over the constitutionality of provisions of the Patient Protection and Affordable Care Act (frequently tagged with the derisive and misleading label "ObamaCare"), my friend Dr. Margo Bergman (who holds a PhD in Economics and a Master of Public Health in Public Health Genetics) over at the StayAtHomeEconomist blog has been writing a series of articles going over what is actually in the law. This is a pretty handy thing, considering how grossly ill-informed most people seem to be about the topic. (Hint: There are no "death panels" in it.)

Here is what is up so far. I'll add links to additional postings as they appear.
  1. Getting to Know the Patient Protection and Affordable Care Act
  2. Health Care in America – a brief tutorial
  3. Section 1001
  4. Section 1001 – continued!
  5. From my cold, dead, but presumably healthy (except the dead part), hands
  6. Sec 1001 – the final push
  7. A Three-fer for you!
  8. And we move faster, faster through time and space, well, just the PPACA, really
  9. Sorry for the hiatus – teething baby!
  10. Moving into the future
  11. Special Rules – oh boy
  12. In need of health care myself
  13. Consumer Choice
  14. Remember the Tooth!
  15. Back in the Saddle
  16. Back to Work
  17. More Fun with Reinsurance
  18. Risk, Risk, Risk
  19. Affordable Coverage Choices for All Americans
  20. Cost-Sharing!
  21. A little departure
  22. Can I, Can I?
  23. Finishing up Eligibility
  24. And now, Small Business!
  25. Best laid plans
  26. The day after blues
  27. And a few addemdums, ipso facto…

Friday, March 16, 2012

Legislating Lies

This article in the Texas Observer has been making the rounds of late, highlighting one family's pain in the wake of Texas' controversial ultrasound law. It is a heart-wrenching story, but one part in particular jumped out at me:
"When the description was finally over, the doctor held up a script and said he was legally obliged to read me information provided by the state. It was about the health dangers of having an abortion, the risks of infection or hemorrhage, the potential for infertility and my increased chance of getting breast cancer."
I had to go back and re-read that just to make sure I had read it correctly. Sure enough, it said "increased chance of getting breast cancer."


"Well, that can't be right," I thought. So I took a look at the actual legislation. Sure enough, there it was in the Health and Safety Code, Title 2, Subtitle H, Chapter 171, Section 012:
Sec. 171.012.  VOLUNTARY AND INFORMED CONSENT. (a)  Consent to an abortion is voluntary and informed only if:
(1)  the physician who is to perform the abortion informs the pregnant woman on whom the abortion is to be performed of:
...
(iii)  the possibility of increased risk of breast cancer following an induced abortion and the natural protective effect of a completed pregnancy in avoiding breast cancer;
The thing is, that this is completely false. There is no medical evidence of an increased risk of breast cancer following an induced abortion. The following is from the National Cancer Institute's Fact Sheet "Reproductive History and Breast Cancer Risk" and hints at the origins of the abortion-breast cancer myth (emphasis added by me and citations re-numbered):
Is abortion linked to breast cancer risk? A few retrospective (case-control) studies reported in the mid-1990s suggested that induced abortion (the deliberate ending of a pregnancy) was associated with an increased risk of breast cancer. However, these studies had important design limitations that could have affected the results. A key limitation was their reliance on self-reporting of medical history information by the study participants, which can introduce biasProspective studies, which are more rigorous in design and unaffected by such bias, have consistently shown no association between induced abortion and breast cancer risk (1–6). Moreover, in 2009, the Committee on Gynecologic Practice of the American College of Obstetricians and Gynecologists concluded that “more rigorous recent studies demonstrate no causal relationship between induced abortion and a subsequent increase in breast cancer risk” (7). Major findings from these recent studies include the following:
  • Women who have had an induced abortion have the same risk of breast cancer as other women. 
  • Women who have had a spontaneous abortion (miscarriage) have the same risk of breast cancer as other women.
  • Cancers other than breast cancer also appear to be unrelated to a history of induced or spontaneous abortion.
The citations are for the following articles:
  1. Reeves GK, Kan SW, Key T, et al. Breast cancer risk in relation to abortion: results from the EPIC study. International Journal of Cancer 2006; 119(7):1741–1745. [PubMed Abstract]
  2. Michels KB, Xue F, Colditz GA, Willett WC. Induced and spontaneous abortion and incidence of breast cancer among young women: a prospective cohort study. Archives of Internal Medicine 2007; 167(8):814–820. [PubMed Abstract]
  3. Beral V, Bull D, Doll R, Peto R, Reeves G. Collaborative Group on Hormonal Factors in Breast Cancer. Breast cancer and abortion: collaborative reanalysis of data from 53 epidemiological studies, including 83,000 women with breast cancer from 16 countries. Lancet 2004; 363(9414):1007–1016. [PubMed Abstract]
  4. Henderson KD, Sullivan-Halley J, Reynolds P, et al. Incomplete pregnancy is not associated with breast cancer risk: the California Teachers Study. Contraception 2008; 77(6):391–396. [PubMed Abstract]
  5. Lash TL, Fink AK. Null association between pregnancy termination and breast cancer in a registry-based study of parous women. International Journal of Cancer 2004; 110(3):443–448. [PubMed Abstract]
  6. Rosenblatt KA, Gao DL, Ray RM, et al. Induced abortions and the risk of all cancers combined and site-specific cancers in Shanghai. Cancer Causes and Control 2006; 17(10):1275–1280. [PubMed Abstract]
  7. Committee on Gynecologic Practice. ACOG Committee Opinion No. 434: induced abortion and breast cancer risk. Obstetrics and Gynecology 2009; 113(6):1417–1418. [PubMed Abstract]
Then there is this. In Summary Report: Early Reproductive Events Workshop - National Cancer Institute under the section "Epidemiologic Findings":
  • Induced abortion is not associated with an increase in breast cancer risk. (1)
  • Recognized spontaneous abortion is not associated with an increase in breast cancer risk. (1)
The "(1)" at the end of each item is a rating of the strength of the evidence, with 1 meaning "Well-established." This is the highest rating.  And it isn't just the National Cancer Institute that maintains this position based upon the evidence:
Need I go on? Certainly, there are (usually) health benefits to carrying a pregnancy to full term, but the consensus of the medical community is that there is no link between abortion and an increased risk of breast (or any other) cancer. Yet, the Texas State Legislature has seen fit to require physicians to tell their patients that there is. In short, the law requires doctors to lie.

Yes, abortion is a divisive and controversial issue. And let us put aside for a moment the other atrocious aspects of this legislation. It is one thing for politicians to lie. They do so on a regular basis. But requiring others to do so? Has furthering a political agenda grown so important that it has come to this?

Way to stay classy, Texas Legislature.

Friday, February 17, 2012

The Murder of Giordano Bruno

On this day (February 17) in 1600, Giordano Bruno, a mathematician, philosopher, astronomer, and Dominican friar, having been found guilty of heresy by the Inquisition, was stripped naked and driven through the streets of Rome, then tied to a stake in the Campo de’ Fiori and burned to death.  What was his horrible crime? He put forth the conjecture that other stars were suns like our own, and that they could each have planets like our own, and that those planets (gasp) have life. Such is life in a world without separation of Church and State.
Image courtesy of Wikimedia Commons

For more information about this fascinating individual, see the following:









Executing someone for heresy is and always has been an act of murder, pure and simple. There is no legitimate justification for it.

When I first started writing this post, it at this point transformed into a diatribe against modern threats to separation of Church and State, and those such as Gov. Rick Perry, Rep. Michele Bachmann, Newt Gingrich, and faux-historian David Barton who keep endeavoring to return us to the bad-old-days of theocracy, culminating with the surreal spectacle of House hearings this week on the topic of birth control in which no women were included among the witnesses, a disgraceful display of the reproductive rights of women being trampled by religious orthodoxy. However, the more I wrote, the more angry I grew. I suppose that, for now, I should just leave it at that....