Discover the top 100 universities in the world from the THE - QS World University Rankings.
Saturday, June 13, 2009
Tuesday, June 09, 2009
Shhh! The biggest idea ever!

Natural selection's explanatory power is not just about life on this planet: it is the only theory so far suggested that could explain life on any planet. If life exists anywhere else in the universe then some version of evolution by natural selection will almost certainly turn out to underpin its existence.
But what makes natural selection so special? A powerful idea assumes little to explain much. It does lots of explanatory 'heavy lifting', while expending little in the way of assumptions or postulations. It gives you plenty of bangs for your explanatory buck. Its Explanation Ratio - what it explains, divided by what it needs to assume in order to do the explaining - is enormous.
If any reader knows of any idea that has a larger explanation ratio than
Yet the denominator (the number at the bottom of the fraction) in the explanatory equation is spectacularly small and simple. The denominator is: natural selection, the non-random survival of genes in gene pools (to put it in neo-Darwinian terms rather than
You can winnow Darwin's big idea down to a single sentence (again, this is a modern way of putting it, not quite Darwin's): 'Given sufficient time, the non-random survival of hereditary entities will generate complexity, diversity, beauty, and an illusion of design so persuasive that it is almost impossible to distinguish from deliberate intelligent design'. We don't need to add mutation to our assumptions. Mutational 'bucks' are provided free. 'Given sufficient time' is not a problem either - except for human minds struggling to take on board the terrifying magnitude of geological time. Look around you, the illusion of design is everywhere in the living world. So powerful is this illusion, so soft and comfortable and beguiling is the cotton wool over our eyes, that the spell of the illusion was only recently lifted 150 years ago today. Yes, 2009 is the 150th anniversary of Darwin's big idea - And our eyes are still accustomising to the brilliant new view.
It is mainly its power to simulate the illusion of design that makes
But intelligent design is the polar opposite of a powerful theory: its explanation ratio is pathetically titchy. The numerator is the same as
I'll end on a subtler legacy of
There remain deep questions in physics and cosmology that await their
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Saturday, June 06, 2009
Coming soon...Life Trips
Wednesday, June 03, 2009
Panoramic Karakoramic Highway - Pakistan
Monday, June 01, 2009
Currently listening to... Album: 'Journal for Plague Lovers'
[Video: Vagabond Productions (C)2009]
Q - 'Simply a phenomenal rock record' *****
Uncut - 'A brave compelling record, stands shoulder to shoulder with The Manics best' ****
Sunday Times Culture - 'Great riff follows great riff. A triumphant album' CD OF THE WEEK *****
Mojo - 'A band aligning with its purest impulses - A triumph' *****
The Fly - 'The Manic Street Preachers have re established themselves as one of the most important bands of our generation' **** ½
Maxim's Album Of The Month - 'The Welsh legends have well and truly found their voice again - This is essential'
Attitude - 'Stands up on its own as an angry, violent, unique piece of art'
Friday, May 29, 2009
Eating The Sun
Friday, May 15, 2009
The Origin of Life (part III)

C02 + H2O --------- C6H12O6 + O2
Carbon dioxide + Water -------- Glucose (organic molecule) + Oxygen
It doesn’t look like much does it? It's rather unimpressive isn't it? How can such a simple formula hold the key to life? But it does! It makes you feel like a god just knowing it. A god surveying creation before him (or her). But enough of the purple prose. Time for some real science. But before we begin: A plea. I implore you to be patient. The science that follows will be tricky. I have tried my best to strip away any superfluousness, any excess fat, to simplify, to distill, so that what remains is the essence. But to truly understand will require a wee effort on your part. But the rewards; if I may be so bold to say, will be worth it. At the end of it all, if I can make you feel like a genius, if I can make you feel like a crazy lord of time surveying his dominion, than I will have succeeded. Let there be light!


- The main purpose of the Krebs cycle is respiration i.e. to generate energy
- At the top you can see a chemical called Pyruvate which is shunted into our cycle
- ATP (the cellular currency of energy) is generated as the wheel turns. The ATP is then used to power life.
- Carbon dioxide and water are produced as waste products of this cycle.

Don't worry about the details (!). All you need to do is look at the top left and read out the name of the first chemical you see...exactly, glucose. And the last chemical at the bottom...pyruvate.
Glucose enters at the top to be broken down into water, carbon dioxide and ATP. If we run it in reverse we can combine water and carbon dioxide, and with the input of some energy, make glucose!
And he said: 'Let there be life, and life sprawled forth from the vents'

