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Wednesday, August 29, 2007

Cows into Whales

UPDATE:The Bad Idea Blog takes issue with Berlinksi's claim that he calculated at least 50,000 changes were required to change a cow into a whale (he stopped counting) [Berlinksi, whales, and why Intelligent Design can’t get no respect]. If Berlinski took ten seconds to write down each of these changes it would take him 5 days, assuming he wrote for 24 hours each day. How's that for a mathematical calculation!
Here's one of the chief IDiots, David Berlinski, expounding on how difficult it must be to change cows into whales. Berlinksi has a Ph.D. in philosophy and has written several books on mathematics. He is a Senior Fellow at the Center for Science & Culture (CSC).

Here's a free clue for the IDiots: cows didn't evolve into whales. Instead whales are the modern descendants of a primitive carnivore that lived over 50 million years ago. See the video at the PBS site for basic information on the evolution of whales—the sort of information that you'd expect anyone to know if they were going to criticize the scientific explanation for the evolution of whales [Whale Evolution]. Berlinski knows some of this history but he's missing the big picture. Berlinksi and most of his fellow fellows at the CSC don't know much about evolution and how it works. It's all a big mystery to them; but then, that's why they are IDiots.



[Hat Tip: The video was posted on the Discovery Institute website by Robert Crowther, who presumably believes that the evolution of cows from whales (sic) is important.]

Tuesday, August 28, 2007

Where Are the Musicians and the Poets?

 

Over on Tangled Up in Blue there's a posting about Country Joe McDonald and his new anti-war song [1,2,3 What Are We Fighting For?]. Country Joe was at Woodstock 39 years ago. He's an old geezer. So is Neil Young who is just about the only other singer to speak sing out.

The anti-war movement of the 60's was supported by all kinds of artists and some of their songs can still stir up powerful feelings today. Where are today's singers? Why are there no protest songs about the war in Iraq? Why are there no demonstrations in the streets and on the campuses? Where are the young firebrands and their passionate speeches? What's wrong with today's younger generation?

New Seven Wonders of the World

 

One of my colleagues just got back from Rio de Janeiro where he visited one of the New Seven Wonders of the World. It got me thinking about the others that were recently voted in. It's not a bad list but I think the Eiffel Tower and Stonehenge should have been on the list instead of Christ the Redeemer and the Colosseum.

And what about this? When it's finished it will be one of the most impressive structures that humans have ever made—especially when you consider the location. A somewhat greater challenge than Macchu Picchu, don't you think?

The international space station may turn out to be not very useful but then the Great Wall of China, the Eiffel Tower, and Christ the Redeemer weren't very useful either.

Blog Spam: What's the Point?

 


There must be some advantage to spammers who litter the comments section with spurious messages. They usually have a name that links to something. For example, today there was a poster named "Viagra" who put several comments on my blog. If you click on "Viagra" it takes you to a webpage (search2.site.io/index.html) with a list of Viagra related items.

Can someone explain the point of all this? What advantage to spammers get out of polluting blogs?

I left an example of this spam in the comments of the thread Science Policy Forum: Framing Science.

Monday, August 27, 2007

Monday's Molecule #40

 

Name this molecule. There's a short common name but it's not sufficient. You have to supply the complete IUPAC name in order to win the prize. There's a direct connection between this Monday's Molecule and Wednesday's Nobel Laureate(s).

The reward goes to the person who correctly identifies the molecule and the Nobel Laureate(s). Previous free lunch winners are ineligible for one month from the time they first collected the prize. There are two ineligible candidates for this Wednesday's reward. Both of them are waiting to collect their prize when September rolls around. The prize is a free lunch at the Faculty Club.

Send your guess to Sandwalk (sandwalk(at)bioinfo.med.utoronto.ca) and I'll pick the first email message that correctly identifies the molecule and the Nobel Laureate. Correct responses will be posted tomorrow along with the time that the message was received on my server. This way I may select multiple winners if several people get it right.


Comments will be blocked for 24 hours. Comments are now open.

Francis Collin on CBC Radio

 
CBC Radio recently interviewed Francis Collins. The interview was conducted by Mary Hynes a woman who shows herself to be completely ignorant of atheism [Tapestry: Interview with Francis Collins].

You can listen to the entire interview if you dare but there's nothing new here. For the most part, Collins repeats the same old tired arguments we saw in his book The Language of God [Theistic Evolution According to Francis Collins]. One of the things he says is that when he was an atheist he began to question his lack of belief. All of his questions about God were answered on reading the first few pages of Mere Christianity by C.S. Lewis! I bet you didn't realize how easy it is to become a Christian! Neither did PZ Myers so he posted the first chapter of Mere Christianity on his blog [Get Ready fo Become a Christian]. Atheists beware, read it at your peril. You might fall down on your knees and be converted to Christianity.

Collins believes that one of the strongest arguments for the existence of God is our sense of what's right and wrong. He calls this the Moral Law. Somehow we seem to know the difference between good and evil. Collins also thinks that the concept of altruism is a major stumbling block for atheists. Here's how he puts it in the radio interview.
... because if you pursue the socio-biological explanation of altruism to its ultimate conclusion, and you say that it's really just evolution that is responsible for this sense of right and wrong, you can't get away from what that means, That means that good and evil have no absolute significance at all. They're purely arbitrary. They're evolutionary contrivances. The idea that we have in our head about something being right or wrong is just a complete illusion. And for people who want to adopt that view you have to go all the way there and embrace that. And something about that, in people I talk to, even those who .. consider themselves to be atheists or agnostics, that really troubles them. And it should.
Now many people seem to think that C.S. Lewis and Francis Collins have a very sophisticated view of religion—one that Dawkins fails to grasp when he criticizes religion. But as far as I'm concerned, if this is the best they can do then theists deserve all the criticism they get.

Evolution has given us brains and we have learned how to use them. Over thousands of years we have developed rules of behavior designed to improve our security and well-being and promote an orderly society. Accordingly, it is "bad" to take something that doesn't belong to you and it is "good" to help your neighbor. It is "bad" to lie and it is "good" to tell the truth. In the long run, if everyone does "good" things your society will be better off. Nobody like thieves and liars. They can't be trusted.

"Good" and "bad" are not arbitrary and they are not the direct product of evolution. They have "absolute signficance"—they promote social interactions and humans can achieve much more collectively than they can as individuals. Collins is way off base here. I don't know of any atheists who are troubled by this. I can't imagine who he's talking to.

Denyse O'Leary and the Blogosphere

 
Denyse certainly got my attention when she announced on her blog that she had some nice things to say about me and some "almost-nice" things about PZ Myers [Podcast: Why I think the blogosphere beats legacy media cold, plus heartfelt regards to Larry Moran and PZ Myers]. Listen to Casey Luskin interviewing Denyse O'Leary and decide for yourselves. The relevant questions come at 12 minutes and 45 seconds into the podcast when she's asked about PZ Myers and me [Blogophile: Denyse O'Leary and the Blogosphere]. If you don't want to follow the link to a podcast where you can skip to the end then listen to the whole thing below.


Click here to get your own player.

The Purpose of Graduate Education

 
There has been considerable debate about the real purpose of a graduate education. Is it just a way of training students to become university Professors? [Job Propsects for Graduate Students]. Is it true that graduate students are just indentured labour as a recent article in Nature implied?

These are interesting questions. One of the issues that often comes up in these debates is the "pressure" to publish. Supervisors will often try to persuade their graduate students to publish papers. Is this a good thing or a bad thing?

It's a good thing, in spite of what most people believe. Here's how Ryan Gregory sets up the question ...
At the base of this discussion is the assumption that most advisors actually do encourage/pressure their students to publish -- an assumption with which I will not disagree here. What remains open is the interpretation of why this might occur. There are several possibilities:
Read his blog to see why graduate students should publish papers and why this doesn't necessarily mean that the advisor is treating them like slave labor [Why would advisors encourage students to publish?].


[Photo Credit: Graduate students in the Dept. of Biochemistry, University of Toronto.]

Gene Genie #14

 

The 14th edition of Gene Genie has just been published on Microbiology Bytes [Gene Genie #14: Bugs and Beyond].

Friday, August 24, 2007

Top Five Dead Scientists

 
Robin Ince lists his top five scientists in the video. It's obviously intended to be a farce since he doesn't mention Charles Darwin. Some bloggers have asked for serious submissions. For example Peter Mc at The Beagle Project Blog wants to know who you would name for the other four spots [Top five dead scientists: list 'em]. So does James Randerson at the Guardian [Top five dead scientists].

So who would I choose besides Charles Darwin at #1? How about Isaac Newton (#2) and Albert Einstein (#3). They seem pretty obvious. I'm tempted to go with Ibn al-Haytham (965-1039) for the #4 position although I don't know as much about him as I should. At #5 I'll pick Thomas Hunt Morgan (1866 - 1945) the first geneticist to win a Nobel Prize and the founder of modern genetics. (And because nobody else has named him yet.)

Honorable mentions to Max Planck, Niels Bohr, Francis Crick and Louis Pasteur. Some of those mentioned by others don't even make the top 100 on my list.



[Hat Tip: Coturnix]

Six Days 'Till the Poll Closes

 
Get on over to the left-hand margin and vote for your view of evolution. The poll closes at the end of August. When it does, I'll explain the errors of your ways!

Sam Harris Gets It Right (Again)

 
Sam Harris has a letter in this week's Natrue where he takes the editors to task for their accommodationist approach to the fight between rationalism and superstition [Scientists should unite against threat from religion].

The immediate object of Harris' letter is a recent commentary praising Islam as an "intrinsically rational world view" that is "perfectly in harmony with scientific naturalism." Harris points out the fallacy of such a position then goes on to raise questions about a review of Francis Collin's book The Language of God. According to Harris, the review, entitled "Building Bridges," ...
... represents another instance of high-minded squeamishness in addressing the incompatibility of faith and reason. Nature praises Collins, a devout Christian, for engaging "with people of faith to explore how science — both in its mode of thought and its results — is consistent with their religious beliefs".
I agree with Harris that the Theistic Evolution version of Christianity promoted by Collins is not compatible with reason and science. I agree with Harris that Nature should be ashamed of itself for suggesting otherwise. This is an area where the editors of Nature should either avoid comment or, preferably, defend science.

Harris closes his letter with a nice jab.
There are bridges and there are gangplanks, and it is the business of journals such as Nature to know the difference.

People Living Today Outnumber all Those Who Have Died in the Past

 
Friday's Urban Legend: DEFINITELY FALSE

This month's issue of Scientific American addresses this popular myth [Fact or Fiction?: Living People Outnumber the Dead].
The human population has swelled so much that people alive today outnumber all those who have ever lived, says a factoid whose roots stretch back to the 1970s. Some versions of this widely circulating rumor claim that 75 percent of all people ever born are currently alive. Yet, despite a quadrupling of the population in the past century, the number of people alive today is still dwarfed by the number of people who have ever lived.
The data is supplied by Carl Haub, an expect on world demographics at the Population Reference Bureau in Washington DC (USA) [How Many People Have Ever Lived on Earth?].

The myth isn't as outlandish as it seems. If you look at the chart above it's not difficult to imagine that the area under the curve from 1950 - 1998 might be close to the area under the rest of the curve. (The start point—Adam & Eve in 5,000 BC is meant as a joke.) Nevertheless, Carl Haub points out that it just doesn't make sense once you start to think about it seriously. But, and this is a serious "but", nobody really knows how many people were alive in the past.
Any such exercise can be only a highly speculative enterprise, to be undertaken with far less seriousness than most demographic inquiries. Nonetheless, it is a somewhat intriguing idea that can be approached on at least a semi-scientific basis.

And semi-scientific it must be, because there are, of course, absolutely no demographic data available for 99 percent of the span of the human stay on Earth. Still, with some speculation concerning prehistoric populations, we can at least approach a guesstimate of this elusive number.
The guesstimate begins with a decision about when to start counting. Haub picks 50,000 BC as a somewhat arbitrary beginning of the human population. As it turns out, the exact start point may not matter very much since the human population was probably small for many tens of thousands of years.

The growth in human population can only be estimated by making guesses about the average life expectancy and birth rate at different points in time. Carl Haub is about as knowledgeable in this field as anyone so we can assume that his guesstimate is as good as it gets. Remember that we are interested in how many people have ever lived and this has to include children who died young as well as adults who lived to be 40 or 50 years old.

There are estimates of the number of people alive in 1AD based on the population of the Roman Empire and China. The consensus is about 300 million (45 million in the Roman Empire). By 1650 the world's population may have been close to 500 million even when you take into account the ravages of the Black Death.

Here's the bottom line. The people alive today represent about 6% of all the people who have ever lived.

The Rings of Uranus Viewed Edge-on

 
The photograph and caption from SciencDaily says it all [Astronomers Get First Look At Uranus's Rings As They Swing Edge-on To Earth].
This series of images from NASA's Hubble Space Telescope shows how the ring system around the distant planet Uranus appears at ever more oblique (shallower) tilts as viewed from Earth - culminating in the rings being seen edge-on in three observing opportunities in 2007. The best of these events appears in the far right image taken with Hubble's Wide Field Planetary Camera 2 on August 14, 2007. (Credit: NASA, ESA, and M. Showalter (SETI Institute))
As expected, Phil Plait of Bad Astronomy has much more information and lots of spectacular photographs [Yes, yes, rings around Uranus, haha]. Where does he get them?

Do You Support Our Troops?

 
A. Whitney Brown explains why he supports the brave American troops fighting in Iraq. His talk applies to my support of brave Canadian troops fighting in Afghanistan—or at least it raises the same questions.



[Hat Tip: Canadian Cynic]