Reflections on life at “De Witte Wand”…

Category: Science

  • Do You Know What Time It Is?

    I know that I’ve grumbled before about the fact that Horizon – the BBC’s once-proud flagship of its science programming – has become a shadow of its former self: dumbed-down beyond belief, or needlessly sexed-up with flashy graphics and bizarre camera angles.
     
    Well, I’m really pleased to be able to say that last night’s episode: Do You Know What Time It Is? showed a return to the form of the classic Horizons. Presented by physicist Professor Brian Cox, it was both engrossing and mind-expanding. Simply brilliant.
  • Swinburne’s Turtle

    Richard Swinburne is the Emeritus Nolloth Professor of the Philosophy of the Christian Religion at the University of Oxford. He apparently sees the Anthropic Principle as a convincing argument from design for the existence of God.
     
    Fortunately, Tom Rees is on hand to point out the flaw in the good professor’s argument. Far from being "an enormously powerful argument for the existence of God" as Professor Swinburne asserts, it seems to be on the level of there being turtles all the way down… 
  • X-Rays and Brazilians

    Dangers lurk in the most surprising areas. Perhaps a razor would be safer. I simply recall the outings to the shoe-shop and the xray machine in the corner
  • The Placebo is God

    Following hot on the heels of that august organ of journalism, the Daily Mail, today’s Guardian also jumps on the bandwagon of the latest "let’s all misinterpret the science" story. Yes, it’s the "Religious belief can help relieve pain, say researchers". Well, well, what a surprise: it’s the placebo effect of course. Yet another pronouncement from the department of the bleeding obvious, I would have thought.
     
    People tend to underestimate the power of the placebo. As a cure for this debilitating condition, I recommend a simple remedy. Merely purchase a copy of Ben Goldacre’s Bad Science and read chapter 5: The Placebo Effect. Instant relief and the realisation that "We are human, we are irrational, we have foibles, and the power of the mind over the body is greater than anything you have previously imagined".
  • Wasted Opportunity

    I see that the BBC’s Horizon programme is continuing its downward spiral into tales told by an idiot, full of sound and fury, signifying nothing. Last night saw the first of a new series wherein the conceit was to ask the question "what should science advisors tell the incoming US president?". Not a bad idea in itself, and some scientists who know whereof they speak were duly assembled, but the opportunity was utterly thrown away by the appalling televisual dross conjured up by the programme makers.
     
    As Lucy Mangan says in her review in today’s Guardian:
    A mind, as they say, is a terrible thing to waste. To waste several of the most intelligent, educated and original at once, in the first programme of a new series of a BBC flagship science programme, however, amounts almost to an achievement. 
    It was a total waste of time and the talents of the scientists involved.
  • Knowing The Cost of Everything…

    … and the value of nothing. That aphorism came into my head as I watched the performance of Sir David King, president of the British Association for the Advancement of Science on Newsnight.  He apparently believes that the money that has been spent on the Large Hadron Collider could have been better spent on more directed research, for instance in combating climate change.
     
    Fortunately, Professor Brian Cox was on hand to pound King’s argument into tiny little pieces. It’s a truly magisterial smackdown. But I’m left with the uneasy thought that if King holds these bean-counter ideals, what’s he doing as president of the BAAS?
  • WalkThis Way…

    I can’t help but feel that the tabloids will have a field day with this study. Perhaps it’s just me, but a sample size of just 16 women seems very small to hang such claims on, and the language of the study seems to stray dangerously close to woo territory.
     
  • Four Basic Questions

    Jonathan Drori, in his presentation at last year’s TED conference, poses four basic questions related to scientific understanding. They are designed to illustrate that perhaps you don’t know as much as you think you know – because we all make assumptions. As it happens, I got all of them right, but that’s probably because I had a good grounding in science, and then continued to learn as I grew up. As a result, I learned, after I had left school(!), that my boyhood assumption for the answer to question 1 was wrong. The answer to question 2 I knew at a very early age, because I performed the experiment for myself. And the answers to questions 3 and 4 I knew when I was still at school.
     
    I find it worrying that many people do not get all these questions right. In particular, that answer to the second question – I find that completely astounding. It must mean that they have never bothered to try out even simple things for themselves.
  • Get Ready, Get Set…

    I see that BBC Radio 4 is getting ready for Big Bang Day
  • We’re All Doomed

    I suppose I shouldn’t really be surprised, but there does seem to be an alarmingly large number of people who think that the world is going to end in two days time when the Large Hadron Collider is switched on. Most of them sound simply worried, but I note that the scientists at CERN have also received death threats. I do hope that we are not going to see a real-life equivalent of the plotline in Contact where the first machine gets blown up by a religious nutter.
     
    What I would say is that it is not sensible to hold an opinion in the face of overwhelming evidence to the contrary. Whilst I understand that much of the language of particle physics is opaque, there does come a time when it is worth accepting the views of experts. The analogy I would give is the design of aircraft wings – I am happy to trust an expert in aerodynamics to get it right rather than offer my own opinion about what shape they should be. It’s really the case that the particle physics community are sensible, rational human beings who go about their research because they believe that exploring the subatomic world is good for our civilization, not to mention interesting. It is also true that if anyone, including myself, had any doubt about the safety of what we are doing, we would stop immediately. I and all my colleagues consider our personal safety and the safety of our families to be FAR more important than the search for the Higgs particle – indeed, if the risk were even as high as 1 in a billion, or whatever people quote, then I would be campaigning with you to stop it.
    Or, as he also has said, somewhat more pithily, and just as accurately:
    Anyone who thinks that the LHC will destroy the world is a twat.
    Quite.
  • Lost Horizons

    The BBC is running a series of programmes in celebration of the fact that the Large Hadron Collider gets switched on next week. Last night was Lost Horizons, the punning and poignant title of a programme fronted by Professor Jim Al-Khalili that looked at the theories of the origins of the universe.

    Punning, because the device used by Al-Khalili was to use extracts from the BBC’s science archives, in particular from the BBC series Horizon, to illustrate the theories. Poignant, because as I’ve remarked before, in recent years, the quality of most of the Horizon programmes has gone down the toilet, and to see these extracts from old Horizon programmes was to be sadly reminded of what has been lost.

    Lost Horizons itself was good, partly because it eschewed the gimmicks of today’s Horizon programmes, and because Jim Al-Khalili knows what he’s talking about and presents it clearly and well.

  • A Letter to Nature

    The esteemed science journal Nature recently had an editorial on the work of the John Templeton Foundation. The editorial has brought a response, in the form of a letter to the journal, from Matthew Cobb and Jerry Coyne. I found myself nodding in agreement with the content, particularly the conclusion:
    You suggest that science may bring about "advances in theological thinking". In reality, the only contribution that science can make to the ideas of religion is atheism.
    The editorial itself can be found here. The comment thread on the Pharyngula entry about the letter is a good illustration of how pointless it can be to feed trolls. Or, to put it another way, why you shouldn’t wrestle in the mud with a pig. You simply get dirty, while the pig enjoys it. 
  • The Role of Evidence

    I’ve just watched the first Headcast of John Cleese, which I mentioned in the previous blog entry. He makes some good points – and he also begs the question a number of times.
     
    For example, he, rightly, notes our natural tendency to ignore evidence. But he also assumes that there is good evidence to begin with. He quotes approvingly from Irreducible Mind (written by people he knows) in the argument to demonstrate that not all aspects of mind are generated by brain activity. The authors state that there is evidence that psi-phenomena and PK do exist, and that’s therefore good enough for him. He implies that not accepting this ‘evidence’ is equivalent to the academics who refused to look through Galileo’s telescope to see the evidence of craters on the moon, because they knew that the moon did not have craters. Well, I don’t think it’s equivalent at all. I’m perfectly prepared to look at the ‘evidence’ – and so far, the ‘evidence’ has turned out to be anecdote for the existence of psi and P.K.
     
    Another example quoted by Cleese shows more clearly what I mean. He quotes the recollection of Stanislav Grof of a conversation with Carl Sagan. Grof is recounting the story of a Near Death Experience documented in the book of surgeon Dr. Michael Sabom: Light and Death – a documentation of nearly 50 NDEs. Sagan apparently rejected the story, brusquely claiming that Sabom was merely hyping up the events in the operating theatre for the benefit of book sales. Cleese invites us to shake our heads sorrowfully at this refusal to accept the evidence.
     
    Well, let’s look a bit closer at the evidence, shall we, John?
     
    I think it’s reasonable to assume that the event described by Grof to Sagan was the case of Pam Reynolds, since it forms an integral part of Sabom’s book. If so, then the ‘evidence’ certainly does not point unequivocally to the interpretation that Sabom, and those who believe that the mind exists at least partially separate from brain activity, would like to put on it. The data in the case can be read both ways. It’s also interesting to look at the context of Sabom’s book (which I freely admit I have not read). I note this review on Amazon of the book:
    This book is written from the perspective of a conservitive [sic] Christian with extensive knowledge and access to NDEs. Scripture is used to interpret NDEs. When NDEs agree with the Bible, they become prof [sic] that the scriptures are inerrant and when NDEs don’t, it is because evil has tainted the experience. Purely from a Christian point of view.. Not recommended for those looking for a more universal or balanced perspective. 
    The sound of an author grinding an axe seems to come through to me – a reaction not too dissimilar from that of Sagan’s, I feel.
     
    To sum up, I try not to discount evidence, but I do ask that evidence comes with a measurable quality – and I will have no compunction or guilt in rejecting that which has dubious quality. As I’ve said before, I do try to keep an open mind, but not so open that my brain will fall out.
  • Missing the Point

    I see that Mark Vernon has taken another swipe at one of his favourite bête noires: Richard Dawkins. It strikes me as a particularly foolish piece. In it, he seems to be complaining that Dawkins’ latest series of TV Programmes (The Genius of Charles Darwin) focuses too much on the challenges to Darwin’s theory, rather than on some of the latest findings such as evolutionary convergence.
     
    Er, Mark, the clue is in the title, the programmes are about Darwin, his original theory and how he wrestled to reconcile it with his (and particularly his wife’s) religious beliefs, and about how the theory continues to challenge some believers to this day. 
     
    Despite the mountains of evidence, a large number of people still insist on sticking their fingers in their ears and go "la la la, I can’t hear you…". I actually find their reaction perfectly understandable. I too, would find it difficult to reconcile species such as the Ichneumonoidea and Toxoplasma gondii with the idea of a loving god. Indeed, even Darwin said:
    "I cannot persuade myself that a beneficent and omnipotent God would have designedly created the Ichneumonidae with the express intention of their feeding within the living bodies of Caterpillars, or that a cat should play with mice." 
    If anything, their existence (and of thousands of species like them) is evidence of either a sublimely indifferent deity or one who apparently revels in sadism. Or, of course, by Occam’s razor, the total absence of any deity at all.
     
    Mark also rather shot his bolt a little too soon, after apparently seeing only two of the three programmes. So his banging on about the absence of any mention of convergent evolution was rendered spectacularly pointless when, in the third programme, Dawkins pointed to the fact that eyes have been reinvented at least forty times in nature as a perfect example of convergent evolution. I would also point Mr. Vernon to Dawkins’ The Ancestor’s Tale, where convergence is examined at length; indeed, a whole chapter (The Host’s Return) is devoted to the concept of re-running the tape of evolution and to the emergence of recurring patterns. As Dawkins says (not that you would think it, from Vernon’s strawmen arguments):
    "As I look at these natural experiments, mostly I am impressed by how similarly evolution turns out when it is allowed to run twice. We have seen how alike Thylacinus is to a dog, Notoryctes to a mole, Petaurus to flying squirrels, Thylacosmilus to the sabretooths (and to various ‘false sabretooths’ amongst the placental carnivores). The differences are instructive too. Kangaroos are hopping antelope-substitutes." 
     
     
    "I am tempted by Conway Morris’s belief that we should stop thinking of convergent evolution as a colourful rarity to be remarked and marvelled at when we find it. Perhaps we should come to see it as a norm, exceptions to which are occasions for surprise. For example, true syntactic language seems to be unique to one species, our own. Perhaps – and I shall return to it – this is one thing that a re-evolved brainy biped would lack?
     
    In my opening chapter, The Conceit of Hindsight, I listened to warnings against seeking patterns, rhymes or reasons in evolution, but said that I would cautiously flirt with them. The Host’s Return has provided an opportunity to sweep over the whole course of evolution in the forward direction and see what patterns we can descry. The idea that all evolution was aimed at producing Homo sapiens was certainly well rejected, and nothing we have seen on our journey reinstates it. Even Conway Morris claims only that something approximately similar to our kind of animal is one of several outcomes – others being insects, for example – that we would expect to see recurring if evolution were rerun again and again."
    Mark finishes his article by venturing into woo-woo territory as far as I’m concerned:
    For example, if there is some kind of independent mentality within the universe, then this might help us to understand the existence of consciousness. Think of another branch of science, quantum mechanics. As the physicist Eugene Wigner put it: "The very study of the external world led to the conclusion that the content of consciousness is an ultimate reality." Consciousness existing like air, land and water? It is a contentious proposition but not simply "not science".  
    Yeah, Mark, but applying the scientific method may not bring any comfort to that sort of wishful thinking. That way lies woo and Deepak Chopra. Methinks that the direction pointed to by the scientific method lies elsewhere.
     
    But what I think really takes the biscuit in Mark’s article is the closing:
    Ruse himself is more cautious: it is easy to run ahead of the science. "Darwinism has major implications for thoughts of purpose," he concludes, but be careful. On the other hand, it is easy to lag behind the science too, not least when evolution is used as a political stick rather than celebrated as part of the human quest for knowledge. 
    The clear implication, to me, is that Vernon seems to be suggesting that Dawkins is guilty of using evolution as a political stick rather than celebrating it as part of the human quest for knowledge. If so, I find this absolutely outrageous, and the total opposite of the facts of the case. In all three programmes, Dawkins has explicitly celebrated both Darwin and his theory as part of the human quest for knowledge. And for Dawkins not to show that some are bent on extinguishing the beacon lit by Darwin would be failing in his duty to show the truth. Now I am beginning to think that not only is this piece by Mark Vernon foolish, but it also apparently has elements of both ingenuousness and mendacity in it as well.
  • The Amazing Randi

    James Randi turned 80 years old a couple of days ago. Belated Happy Brithday greetings to him. Here’s to many more.
     
     
  • The Genius of Charles Darwin

    I’m pleased to see that Richard Dawkins’ new series on Charles Darwin is available on the Internet. The first programme was eminently watchable. I did wonder, though, about those schoolchildren. When I was their age, I would never have thought that evolution was not a fact, and that’s forty-five years ago. Has education slipped back so much?
     
     
  • Shades of Dr. Johnson

    There’s been quite a lot of mention of the Jetpack story in today’s news and blogs. I must admit, having seen the video of it, I am distinctly underwhelmed, and feel myself turning into Dr. Johnson. Mind you, I think the best comment was made over at the TED blog:
    "If I wanted to wear a black suit while two guys carried me six feet off the ground, I would have a Bar Mitzvah."  
     
  • Sonic Hedgehog?

    I love the irony of biologists. So much more satisfying than the crap that passes as Intelligent Design.
  • The Periodic Table

    The Periodic Table of Videos is an entertaining collection of short videos, each devoted to describing one of the elements of the periodic table. Try the one on Sodium (Na) to see what I mean. Charmingly amateurish, good boyish fun and complete with the perfect image of a mad professor.
     
     
  • In My Day…

    …we understood engineering. Whoever was responsible for letting this advert (doubtless produced by meeja-studies graduates) loose into the real world should be downright ashamed of themselves. Students of the London South Bank University hopefully are feeling abashed. Me, I would probably be calling for someone’s blood. Clue: this geartrain cannot move, thus rendering it totally fucking pointless