Bacteria Stuff

I have been trying to finally get around to updating all the bacteria pages to include photos of the little microbes as well as the (possibly a little strange) cartoons. This proved easier than I thought as good old Wikipedia has loads of public domain images that can be reproduced as long as the author is referenced. The Escherichia coli electron micrograph below is my favourite.

I’ve also begun adding in some general bacteria info, like the pages on bacterial morphology and inside the bacterial cell.

Escherichia coli cluster

Guestbook

I added a guestbook to ilovebacteria.com a while back, although the anti-spam graphics were more efficient than I anticipated and prevented anyone from posting (thanks for the heads up Sarah!). Hopefully the problem has been solved now…I went with a free PHP script called GBook if anyone is interested. Having been through a number of free guestbook providers in the past and always had spam issues, I’m interested to see how this one turns out.

Back when Ratlab was still going strong, I could always tell what messages were spam as they generally contained a string of web addresses and lots of references to Viagra. Nowadays, spammers seem to have evolved into something much worse and leave messages such as ‘Hmmm, not sure I agree with your point. Can you provide references?’. Of course, when you click on their seemingly innocuous homepage, your innocence is assaulted by whatever horrors lie within.

But no matter how complex the spam filters in operation in my shiny new guestbook are, the world still waits for a way to prevent school kids from posting half a dozen messages informing me how ‘poo’ I am, or letting everyone know what they think of poor Kevin in their class. What ever happened to the days when kids just chased each other round with sticks?

Evolution isn’t perfect…

Interesting question from a visitor to the site:

“Apparently the comedian Dara O’Briain said something like “If the theory of evolution is really true and we’ve undergone millions of years of evolution, why do we still sometimes bite the inside of our mouths?” Perhaps this could be one of the silly questions answered on your site.”

You’d have to be pretty unfortunate to accidentally nip the inside of your cheek while, slightly over-enthusiastically, munching on a piece of delicious steak; and then somehow die of your injury. And that’s the problem with evolution – it deals in the currency of life and death, not degrees of irritation. So, if some particular trait or ability doesn’t kill you and/or make you infinitely less/more attractive to the opposite sex, good old evolution is pretty much going to ignore it.

I often hear people talk of how, in several million years, humans will have evolved to all be 6 foot tall, or blonde and beautiful, or to have one eye in the middle of their forehead as we no longer need two. But these folk are missing one vital point, and that point is the male nipple. Let’s face it guys, there really is no purpose to your little chest appendages. But they are still there, right? That’s because evolution really has no interest in removing something that does you absolutely no harm – it’s really got better things to do. Just so long as you survive long enough to have babies, evolution is perfectly happy. You can bite the hell out of your mouth or be in possession of pointless nipples or have a massive nose, and, just so long as you can find one person out of 6.5 billion who is willing to procreate with you, then evolution just isn’t going to take the blindest bit of notice of whatever defeat you possess.

This is one of my favourite arguments against that whole creationist nonsense. Surely if someone was going to design a human, they would have made us, sort of, better? I mean, wisdom teeth? I can’t talk for the rest of the planet, but I can say that my own cause me no end of pain and annoyance. And what about child birth – surely no other animal finds the whole experience quite as dangerous and traumatic as a human? Could it be that evolution has selected for those physical traits that, while allowing us to walk upright and have big brains (ie. massive baby heads), also result in lots of women finding their pelvises not really all that great during the process of giving birth? In the toss up between being able to run around on two legs and pain-free childbirth, evolution obviously found the ability to walk on two legs more useful to the survival of the human race, and the ‘wonder’ of childbirth was the trade-off.

A perfect human wouldn’t bite the inside of their lips, experience difficulty in giving birth without help, possess pointless male nipples, experience chronic back pain or develop impacted wisdom teeth. But we’re not perfect. All those little annoyances we experience simply because we’re human are the product of all those years of evolution choosing the traits that help us survive long enough to have healthy kids, and ignoring everything else.

XDR-TB

I probably shouldn’t get quite so excited about this sort of thing…

http://news.bbc.co.uk/1/hi/scotland/glasgow_and_west/7308364.stm

This is apparently the first case of XDR-TB in the UK. Scary stuff.

National Science Week

Last week was National Science Week and, to celebrate this momentous occasion, I took part in a day of science experiments with a bunch of GCSE and ‘A’ level students. Thanks to the lovely English tabloids, I cannot help feel a mild sense of trepidation when faced with a load of 16-18 year olds. Are they going to shout abuse when I ask them to fill in a worksheet? In short, no.

Can you believe that there are people out there who find the prospect of using a Gilson to load a DNA gel exciting? Or can come up with questions like ‘Do GFP-expressing pigs see in shades of green?’ It turned out to be a lot of fun and I ended up giving my email address to one science teacher, who wants someone to come into her classes to talk about scientific research and help out with some experiments. So I began trying to come up with fun bacteria-related practical demonstrations that will make microbiology exciting to people who aren’t quite as geeky as I am.

Bacteria doesn’t exactly have the best image among the general public. When it isn’t viciously murdering the helpless in hospitals, it is contaminating your kitchen surfaces and putting our kids at risk. Thankfully, we have all these amazing cleaning products that kill 99.9% of bacteria or restore the balance of good bacteria in our guts. But, hang on, does anyone actually stop to question whether there is really any evidence to back up the claims of commercial organisations? Have we all been taken in by all those adverts that dress up their products with scientific sounding spin?

Maybe these products work, maybe they’re actually a pile of nonsense. But hands up how many of us have bought a probiotic drink without first attempting to hunt down the peer-reviewed literature to check out whether there has been any studies to suggest that ingesting milky drinks crammed full of lactobacillus really does do us some good? Does anyone stop to wonder if our guts really are so unbalanced that we need to stock up on ‘good bacteria’? And do these drinks even contain enough bacteria to stand a chance of competing with everything else that’s already living in our intestines?

So my idea for the ‘A’ level students is to get them to investigate the representation (or misrepresentation) of science in the media and adverts. How many products use science to sell them to the public? What do the claims made about these products really mean? How many have proven scientific principles behind them? Can we reproduce any of the supposed affects of these products in controlled experiments? Even if I put an entire class off a science career, hopefully I’ll make them start questioning all the supposed ‘science’ we’re all subjected to on a day to day basis.

Darwin

I’ve posted about the Darwin Correspondance Project on a previous blog, but figured it was kind of cool:

Charles Darwin changed the way the world thinks about where we came from and where we are going when he laid the first foundations of the theory of evolution. His theory was based around the process of natural selection, whereby animals or plants best suited to their environment are the ones that are most likely to survive and reproduce. This results in a species gradually changing over time, becoming more and more adapted to the conditions they survive under.

Even today, his 1859 ‘On the Origin of Species by Means of Natural Selection’ presents some controversial arguments to many, with a suprising proportion of people still believing that God created the world in 7 days. The fact that Darwin developed his theories at a time when the bible was still taken at face value by the majority makes his work all the more amazing.

What you may not have known is that Darwin was, in a way, the Victorian equivalent of a science blogger, exchanging letters with nearly 2000 people during his lifetime and recording the development of his work in great detail.

In one of his earliest known letters, the 12-year-old Charles Darwin, said of his standards of personal hygiene:

I only wash my fe[e]t once a month at school, which I confess is nasty, but I cannot help it, for we have nothing to do it with.

And of the voyage of the survey ship HMS Beagle, where he was to first begin to develop his theory of natural selection, he wrote:

The scheme is a most magnificent one. We spend about 2 years in S America, the rest of time larking round the world.

The ongoing Darwin Correspondance Project gives us a remarkable insight into his life and work, by providing details of around 14,500 of his letters.

DMOZ

I love DMOZ - the open directory project. They have real living, breathing human beings approving every site that gets listed, meaning that you don’t have to wade through all the rubbish out there on the net to find what you’re looking for.

And for web developers, it is a godsend which can propel your meagre little web site from its lonely pit of despair in the deepest, darkest bowels of the web, to a position of greatness with daily visitor numbers well into the double figures! See, there are all those mirror sites that just publish the DMOZ directory on their own pages. Sure, this is annoying when you type your search query into Google and the first 69,877,566 hits returned are all pretty much the same, but it’s even more annoying if you own the website which is hit number 69,877,567.

If it hadn’t been for the nice editors deciding to list my first attempt at a web site, I don’t think anyone would have happened upon poor old ratlab.co.uk, and what a joy would have missed out on by so many. So much of a fan of DMOZ was I, that I decided to become an editor for this vast collection of over 4 million web sites and, for a few months at least, I happily logged on to the site and approved or denied the huge numbers of sites (4 or 5) being suggested by eager little web developers. Perhaps my standards were a little bit high as my decisions were often over-ruled by my superior editor. But all the same, I was doing my bit for the small but significant Kids_and_Teens/School_Time/Science/Experiments corner of the web. Us Kids_and_Teens editors were the coolest of the cool, we even had our own message boards and a pretty coloured link on the front page of the main site, while all the other dull categories had to make do with plain blue. But I digress. In the end, this editor-lark, like many of my projects, soon fizzled out, as did the original web site that had first led me to DMOZ.

But now that I have returned with a vengeance, I am somewhat miffed that I can’t seem to get my replacement at DMOZ to approve ilovebacteria.com. My own editor account has sadly been removed through inactivity, not that I was planning to log in and just add my site myself of course (my solemn editor’s oath to uphold the principles the Kids_and_Teens category would mean I would immediately go to hell should I commit this ultimate of crimes). So what am I to do? Does this mean I might actually have to do all that SEO nonsense all on my lonesome?

Drag and drop script

I’ve been thinking about adding a ‘Spell your name with amino acids’ tool to the web site and came across this really cool script that lets you drag and drop images on your pages. It is simple enough for a monkey to use, which is great considering my extreme lack of knowledge when it comes to all things involving the word ’script’.

Try moving the little bacteria below around the page:

Visit Dynamic Drive to have a go yourself.

Web site & book reviews

One of the new sections I am adding to ilovebacteria.com contains reviews of some of the best sciency web sites I happen upon and any science books that I get around to reading. This is the point where I should make a slight confession - I don’t actually read many popular science books, despite my great aspirations towards writing one myself one of these days. I just tend to find some books of this ilk a little - how can I put it? - irritating. So I figured that sticking a great big page devoted to the wonders of science writing on this web site might inspire me to put down the novel and pick up a 300 page essay on the origin of conscious thought or chaos theory or something else that will make me look intellectual on the train. I’ll let you know how it goes.

Why am I sharing this? Well, I got thinking that maybe my meagre opinion is not always something to be trusted. After all, I could happily eat pickled gherkins till my lips become shrivelled and white; yet I am told this is not a favourable past-time shared by all of my fellow humans. So consider this as me throwing out my virtual arms towards you, and encouraging you to give your two-pennies worth on any book or web site you have recently visited.

Favourite or least favourite science book? I’ll give you the proper accreditation of course, so that the whole world knows exactly which God of the written word described Richard Dawkins’ latest offering as “a little bit pretentious” or Bill Bryson’s Short History as “almost factually correct in most places.”

Cool web site you’ve discovered? Or maybe you are a web site owner who desperately wants to entice more impressionable young minds towards your own attempts at internet world domination? (That sounds creepier than I meant it to). So send me a link to a web site or blog, and I will: a) Review you and stick a nice little description of your site on ilovebacteria.com, b) Stick a link to your site on this blog and maybe mention you to all 2 of my readers, c) Ignore you completely and possibly block your email address, d) Not provide a link back to your site, but very generously take huge chunks of your site and post them here as my own work. If I can’t muster up an opinion of my own, why not steal borrow from my web site’s visitors…

Getting in touch

Hello, my name is Kat. Nice to meet you. And you are…?

The reason I ask is that the more I know about the visitors to this site, the more likely I am to write something that might actually prove to be some use. And by ‘know’, I mean first name/approximate age/what you’re doing here etc. However tempted you might be to send me your home addresses, bank account details and your dog’s maiden name, I really would have no idea what to do with them (I live in the UK, not Nigeria after all) and you’d just clog up my inbox.

Email not your thing? Others ways to get in touch include leaving your comments on this blog, or on any page of the web site by clicking on the ‘make a comment about this page’ link on the bottom right of each page. Unfortunately, because posting my home address on the web would be pure lunacy, you can’t send me a letter (who does that any more any way?).

So, armed with all this new knowledge on how you can contact ilovebacteria.com, why not let me know what else you’d like to see on this site? Got any science questions you’d like answered? Need advice on scientific careers? A favorite microbe you would like to see featured in the Meet the Microbes sections? Please note that I can’t help out with individual science fair projects or school work, and please don’t ask medical questions as I’m not that kind of doctor. But if its something that fits in with the overall theme of the site, then there is a good chance you’ll see it appearing on ilovebacteria.com at some point.

Are you into science writing yourself? I am happy to feature guest writers on the main website but, as this is a non-profit project (by non-profit, I mean self-funded), cannot pay anyone for submissions. Get in touch if you’re interested in helping out, e-mail me on kat @ ilovebacteria.com and I’ll get back to you.