Good News, Everyone!

I'm not going to whinge about how bad I am at posting... promise! Just wanted to share how excited I am - I've been accepted into a summer studentiship with CSIRO!! It's in the area of plant biotechnology but I don't yet know which project I'll be working on. Scary part - at the end we all get flown to Canberra to give a talk on our findings. It'll be great to hear what all the other students worked on, but I haven't done public speaking since high school... I'm already getting stage fright :( Hopefully there's not too many people! Should be lots to blog about over the summer, then. I've also booked our post-exams holiday to Tasmania, I kind of wish I was there already. That's all for now, I need to get back to the genetics assignment I've been avoiding all week. (The only positive outcome of this is that my house is now really clean, all my clothes are washed and the fridge is full of food. Maybe I should avoid things more often, it makes chores really attractive.)

Ooh, last minute - I've booked to go to a talk by Richard Dawkins - yes it's not until 2010, but there's only one night so I figured I'd get in early. Preaching to the converted, I know, but it's pretty cheap and I expect he'll talk about his new book which I've been reading (which is great, btw).

Rain, exams and the case for chemistry in the kitchen

Ugh, exams... exams and rain. Actually, I don't mind the rain in the slightest - the cool change is lovely, and water on the road tends to muffle the traffic roar to which I've become accustomed. Physiology and Micro midterms done (and they weren't so bad, either); Bichem's on Thursday and Molcular Bio isn't for two weeks, so I'm not too worried.

Worse is my book pile - it teeters at my bedside, threatening to crush me in my sleep. I've not read any more Dawkins, and that's on top of about five half-done novels, two new ones I impulse-bought today (Nick Hornby and Johnathan Safran Foer) and recursively, a book about reading (the auther is just as negligent as me, I'm afraid, so it's not helping in the least). Not to mention the inch of science magazines. Bring on Easter break!

Speaking of Easter, this is me reminding myself: post the awesome recipe for lemon tarts. Hey, it's sort of scientific, cooking is half chemistry, half physics after all. Citric acid and sucrose do nice things to the tongue! And then there's eggs denaturing in the oven... maybe I should turn this into a blog for kitchen chemists.

Cumulative Selection

I'm sick of studying but I haven't much to blog about. Solution? Quote Dr. Dawkins!

"It is amazing that you can still read calculations like my haemoglobin calculation, used as though they constituted arguments against Darwin's theory. The people who do this, often expert in the their own field ... seem sincerely to believe that Darwinism explains living organisation in terms of chance - 'single-step selection' - alone. This belief, that Darwinian evolution is 'random', is not merely false. It is the exact opposite of the truth. Chance is a minor ingredient in the Darwinian recipe, but the most important ingredient is cumulative selection which is quintessentially nonrandom."
~ The Blind Watchmaker, Chapter 3, 1986

As I read this book I keep getting the uncanny feeling Dawkins is reading my thoughts. Early on, he mentions that natural selection is not purposeful, just an inevitable occurrence when you have variation within a population that reproduces and passes on its characteristics. I thought to myself that thinking this is in some way directed is like thinking that a sieve in a river catching large but not small objects is doing it for a purpose. This organisation out of chaos is not for anything, it's just a consequence of how sieves work. Two pages later and he's talking about sieves. I guess it's just a common example.

DNA Extractions

As I've mentioned before, there are certain moments in the string of routines, adjustments, retries and self-corrections that makes up an experiment which are particularly beautiful or elegant. It's generally the moment when it all makes sense, when you end up with a number which proves that the past three hours of pedantic measuring was not in vain.

In our extraction of DNA (from chicken liver in Molecular & Cellular Regulation), that moment didn't come at the end at all. Yes, we've since got those all important numbers from spectrophotometry and electrophoresis, but the awesome part is the fiddliest. The DNA and a bit of other sludge (proteins etc) are in the bottom of the tube, topped with a layer of ethanol (pipetted ever so carefully down the side of the glass so they don't mix). In goes your glass rod, and ever so delicately you dip it past the interface and swirl it around in the DNA to wind a few strands onto the rod. It's like making the world's tiniest stick of fairy-floss. The strands precipitate out when they reach the ethanol, and hang there, translucent, the stuff we're made of.

I don't believe humans have a 'soul', or anything more than the sum of our parts, than the complexities of the brain. I find it hugely more impressive, more inspiring and wonderful to think of the intricacies of how we work, come about over millions of years by a process born out of randomness and determined by the ability to survive, than to propose that we are something more mysterious.

Year #2

With second year comes... more failed resolutions to post often, it seems. I will endeavour.

Meanwhile, my classes all feel a lot more focused. Currently my minor ("co-major") is Life Science Technologies, which translates to 'pick some stuff you're interested in from the life sciences'. However I'm considering changing it to biomolecular science, or even making biochem my minor and changing major to biomolecular. Anyway, I have plenty of time to decide because they have so many units in common. This semester, it's Microbiology, Molecular and Cellular Regulation, Biochemistry and Medical Physiology. As usual I'm not a huge fan of microbiology, but I'm enjoying the others, even (gasp) physiology.

Med Phys is interesting in that we don't have lectures; the material is all online and backed up in the tutes and pracs. I'm quite enjoying this (more time sleeping in the morning!) but I think other subjects wouldn't be so suited to it. We've also got the benefit of a really well-made website, which is vastly better than my experiences with textbook-linked websites made by book publishers. Thankfully none of those are compulsory this time around.