Category Archives: science

All-Weather Spectacles

The Feedback column in New Scientist recently asked its readers

to describe your own Wallace-and-Gromit-style invention in no more than 100 words. Many of you focused on just one important aspect of the Wallace and Gromit canon: reading through your entries, it has been a revelation to us how many productive uses cheese – especially Wensleydale – can be put to. Knitting, mice running on treadmills and modified bicycles also figured in many of your inventions.

However of the five published winners, this was my favourite:

As well as having reactive lenses, these spectacles have a built-in rain sensor that activates lens wipers in wet conditions. There is also a light detector, which will switch on lights in the spectacle arms when it is dark, to help you see. In strong sunlight, a nose shield will automatically be unfurled to prevent unsightly sunburn on the nose. In extreme cold, the frame of the spectacles will heat up to help keep your face warm. The spectacles are powered by a small wind turbine attached to each arm. Stylish yet practical.

It was the small wind turbines that finally finished me off!

Maybe that’s because I went to the opticians this week for a new pair of specs, during which I discovered the new “must have” frames … they come with magnetic “clip-on” polarizing sunglasses. Magnetic? Where does magnetism come in? Well rather than clipping on to the specs with what one might term “adapted paperclips” they are held on by small magnets. On the sides of the shades (where the hinge would normally be) there is a small magnet. On the equivalent place on the frames, integrated into the hinge, is another small magnet. An instant docking mechanism. So simple when one thinks about it, and yet it apparently hasn’t been tried before; no doubt someone will tell me they’ve been around for years but I’ve never seen, or been offered, them before. OK, they’re not cheap, but in the overall scheme of things they aren’t expensive either especially when one considers that my lenses cost a week’s wages. Eeeekk!

Katyboo posted this meme the other day, and as she didn’t tag people, preferring us to elect or not, I’ll take the bait. Well it’s better than doing whatever it is I’m supposed to be doing.

The rules of the meme are: Respond and rework. Answer questions on your own blog. Replace one question. Add one question. Then tag eight people.

What are your current obsessions? Depression. I don’t know why I’m so depressed at the moment (I’ll blame work, it’s as good a scapegoat as any, but it almost certainly isn’t the only factor) but it is taking over and stopping me doing things.

Which item from your wardrobe do you wear most often? The Emperor’s new suit. Nudity and getting fresh, cooling, air to the body is actually good for you; it stops you getting all sticky and sweaty in places you don’t want to. I do wear a pair of shorts or jeans (more if I need to) during the week, if only so I can get to the front door quickly. Otherwise I follow the maxim “Nude when possible, clothed when necessary”.

What’s for dinner? Vegetable Crumble, I think. Well we are trying to be good and reduce our meat intake for the sake of our health and the planet. And Noreen does a mean veggie crumble with mushroom, onion or cheese sauce. Yum, yum!

Last thing you bought? In a shop? Not a clue; I hardly ever got to shops these days. Online? Some scented geraniums.

What are you listening to? The hum of my PC. I can’t take continual background music (let alone talk) these days. I suspect that’s related to the depression.

Do you have a pet and if not, why not? Yes, two cats and lots of fish (both tropical and in the pond). And no, the cats take no interest whatsoever in the fish.

Favourite holiday spots? Dorset and South Devon, by the sea. Well anywhere quiet by the sea really.

Reading right now? My PC screen, stoopid! 🙂

Four words to describe yourself? Fat, grey, snotty, depressed.

Guilty pleasure? Why do pleasures always have to be guilty? Erotica. Yes and I’m unashamed about it. In the words of Jean-Luc Goddard, “Eroticism … is consenting to live.” If no-one ever found anything erotic we’d none of us be here!

Who or what makes you laugh until you’re weak? edartr at Flickr‘s photographs of his hilarious two dogs; see here for example.

First spring thing? Zebedee

Planning to travel to next? Norwich to see my mother. Don’t know when yet, but it should be soon.

Best thing you ate or drank lately? East Green

Do you have any weird phobias? No. There are things I dislike intensely, like maggots, but nothing which turns me into a complete gibbering wreck.

Favourite ever film? As I don’t do films I’ll change this one. My question is: What time is it now, and what time would you like it to be? It’s currently 1150 hrs, and thus fast approaching lunchtime. What time would I like? The time I can drink beer freely again.

Care to share some wisdom? “It’ll pass, Sir, like other days in the Army.”

Favourite song? Pink Floyd, Learning to Fly. Well that’s one of them anyway.

What’s your favourite meal you make without sticking to a recipe? Curry. But then I almost never use a recipe for anything except cake – and I never make cake.

Who would play you in a movie of your life? Who would be stupid enough to even consider it? Maybe Harpo Marx? Actually Woody Allen probably suits my personality better. 🙁

Facebook or Twitter? Other or Neither? For preference neither. I do dabble on Facebook from time to time, mainly as a way of not quite losing touch with people. But as far as I can see Twitter is a complete waste of time and everything else; no-one has yet managed to explain the point to me. The same goes for Second Life and YouTube.

What is your favourite word? What do you mean I’m not allowed that one? It’s a perfectly good Anglo-Saxon word. Oh OK, let’s have something boring then, like corvid.

OK, so here’s the question I’ve added: If you were to have one piece of luck this week, what would it be? To win the lottery so I can afford to retire.

Like Katyboo I don’t like tagging people – although I’m always happy to be tagged – so you can all choose to take part or not. If you do, just leave a message and a link in the comments, please. Enjoy!

Mexican Swine 'Flu Hysteria

Simon Jenkins is right on the money. Writing in last Wednesday’s Guardian he lays into all the doomsayers jumping on the “swine ‘flu” bandwagon. Just the headline says it all:

Swine flu? A panic stoked in order to posture and spend
Despite the hysteria, the risk to Britons’ health is tiny – but that news won’t sell papers or drugs, or justify the WHO’s budget

As that suggests Jenkins is highly critical of governments; medics and scientists (who, let’s face it, advise governments and have careers to nurture); the WHO; and the pharmaceutical manufacturers (who have big profits to make). He starts with a full-on rapier thrust at government:

Appropriately panicked, on Monday ministers plunged into their Cobra bunker beneath Whitehall to prepare for the worst. Had Tony Blair been about they would have worn germ warfare suits. British government is barking mad.

But he also says:

We appear to have lost all ability to judge risk. The cause may lie in the national curriculum, the decline of “news” or the rise of blogs and concomitant, unmediated hysteria, but people seem helpless in navigating the gulf that separates public information from their daily round. They cannot set a statistic in context. They cannot relate bad news from Mexico to the risk that inevitably surrounds their lives.

And then even more tellingly …

Meanwhile a real pestilence, MRSA and C difficile, was taking hold in hospitals. It was suppressed by the medical profession because it appeared that they themselves might be to blame. These diseases have played a role in thousands of deaths

[…]

MRSA and C difficile are not like swine flu, an opportunity for public figures to scare and posture and spend money. They are diseases for which the government is to blame.

It seems to me the real diseases underlying all this appear to be vested interests and public hysteria.

You can read Simon Jenkins’s full article here.

No this isn't a Pandemic

Jilly over at jillysheep isn’t panicking about the current H1N1 ‘flu scare. She asks “Is this really a pandemic?” Quite rightly she concludes it isn’t a pandemic. I’m interested in (and follow) emerging diseases and their epidemiology (in an amateur way) and I agree with Jilly; here is my (slightly edited) succinct comment to her posting:

No this isn’t a pandemic. In my view (and I hope I’m right) it isn’t even dangerous. As usual it is being hyped up by the media and the politicians are playing to the gallery. Look guys, it’s ‘flu! It doesn’t even appear to be an especially dangerous ‘flu. Sure ‘flu can be nasty and it does kill a few people; it always did; it always will. Yes this will spread. Yes, technically, it may become a pandemic, but IMO not one to worry about. H5N1 Avian ‘flu is potentially more worrysome as it appears to have a higher CFR (fatality rate); SARS similarly. And as for the idea that this ‘flu could be contained in Mexico, well forget it; it never could (just as Avian ‘flu and SARS could never be contained). By the time anyone realised it was around the genie was out of the lamp, however quick they had been, given modern mobility and air travel. This has been around in Mexico since, it seems, mid-March, so the genie was out of the bottle a month before anyone knew (or at least admitted). Look at that month and then ask how dangerous this is. I rest my case!

I don’t relish the thought of having ‘flu, especially as I’m one of those supposed to be at most risk (I’m diabetic) and so get a ‘flu jab every year. And the ‘flu jab to date probably offers me no protection against this Influenza A/H1N1 strain. Next year’s vaccine could include protection against this strain, but only if the scientists get a move on as production of next winter’s vaccine will already have started. Even in spite of this I’m not panicking.

Come on guys, get a life! Is this really all we have to worry about?

Zen Mischievous Moments #150

I offer you two snippets from the ‘Feedback’ column in this week’s New Scientist:

The entirely flat cotton bed sheet that [Reader A] bought from the department store House of Fraser came with a label telling him to wash it inside out.

[Reader B] from Edinburgh in the UK reports on a pack of condoms bought at the supermarket Sainsbury’s which had a security label stating: “Please remove prior to putting in the microwave.” [Reader B] is worried that he might have dozed off and missed a crucial part of his sex education classes at school.

D is not for Dog

Neither is D for Dolphin! Not that I have anything against dogs or dolphins; they’re just not creatures which interest me. But D is for Daffodils …

OK, so here’s one of the current interspace memes. A blogging friend issues you with a (random) letter. You then have to write a weblog post around ten things beginning with that letter which you like, or are at least meaningful to you. So thanks to Hails over at Coffee Helps for giving me the letter D. So my ten things are:

Donuts
No not those toroidal creations so often topped with sugar icing and ADHD-laden e-coloured sugar ants. Definitely, No. Donuts here have to be the roughly spheroidal, cricket ball-sized variety in the middle of which there is a large dollop of gooey red jam just waiting to squirt out all down the chin and shirt-front. It’s the special red sticky jam otherwise reserved only for the fingers of two-year-olds! Good donuts are wicked but heavenly. Bad donuts are evil.

Desprez, Josquin
Josquin is here as a representative of all composers of the early music era. Although perhaps not my all time favourite Josquin’s work is sublime. My real interest is more in the liturgical works fo the English Medieval and Renaissance composers, especially Nicholas Ludford and William Byrd. Byrd is in fact one of my heroes. How he survived as a recusant in Elizabethan England is something of a mystery. Although arrested and fined for recusancy on a number of occasions he not executed or imprisoned at length – something any other person at that time would have been. Moreover he kept his place at court. One can only think that he had special royal protection for some reason, perhaps as a valued spy? And his liturgical and keyboard music is for me unsurpassable.

Drinking
Let’s be open and frank. I enjoy a drink or three; beer or red wine for preference. It’s fashionable these days to knock anything to do with alcohol, and, yes, I admit it is a drug. But the anti-booze campaigns have in my view gone too far. Yes, it isn’t good for you to get smashed out of your skull regularly. But a few drinks? I seriously doubt a few drinks really hurt anyone (with perhaps the odd exception). Indeed there is good medical evidence that small quantities of alcohol (like a glass of red wine a day) are beneficial and help protect against things such as heart problems.

Diabetes
I was diagnosed with Type 2 Diabetes about 3 years ago, and it can be a real pain in the posterior, although I will be the first to admit that I still haven’t fully engaged with it. You’re supposed to watch what you eat and need to rebalance your diet away from naked sugar to complex carbohydrates which release energy slowly. Diabetes is actually, in my view, two distinct diseases which result in the same long-term effects.

Type 1 Diabetes is an autoimmune disease where the body does not produce Insulin (the islet cells in the pancreas either don’t work or are destroyed), so the body cannot metabolise sugar (glucose/glycogen). It generally appears at a young age and often runs in families. Type 1s are the people who have to inject themselves with Insulin, often several times a day.

Type 2 Diabetes normally appears later in life and although there can be a genetic tendency it is also triggered by things like excessive weight. In Type 2 the body produces Insulin but the transport mechanism which allows the Insulin to diffuse from the blood though the cell membrane so it can work in the cells, fails. The effect is high blood sugar, as with Type 1. Type 2 is mostly managed by lifestyle changes and drugs, although through complex feedback mechanisms in the body it can destroy/disable the islet cells so that one progresses to needing Insulin injections.

Of course those descriptions are a generalisation and it isn’t as simple as I make out. Both types of Diabetes are serious but often don’t get taken seriously, even sometimes by those with the malady. They are largely invisible (unless someone passes out, which can happen with either very low blood glucose (hypoglycaemia) or too much blood sugar (hyperglycaemia); both are medical emergencies). But ignoring one’s Diabetes is a mistake as it can lead to many serious complications including major effects on the circulatory system, the nervous system, the kidneys and the eyes. If you even suspect you might have Diabetes then get it checked out by your doctor and take it seriously.

Dentist
Am I sad? Am I really the only person in the country who doesn’t dread going to the dentist – and even enjoys it? Judging by conversations I have I seem to be. But it is true; I genuinely do enjoy trips to the dentist, even when he’s doing nasty things in my mouth! Jonathan, my dentist man at White House Dental is a dream and a genius. Were I female I would swoon. He is just the best dentist – ever. OK so I have the privilege of paying him privately, but is it worth it! He is a superb technician, incredibly dexterous and his attitude is “the best will do”. And I have that on authority too. A couple of years ago he wanted a problem in my mouth checked by an oral specialist at the local BUPA hospital. While looking at my mouth the specialist’s (quite unprompted) comment was “I don’t know your dentist; I’ve never met him; he just refers people to me. But I see a lot of dentistry [well he would, wouldn’t he!] and your guy does the best dentistry I ever see”. Can one get better than that? Well yes, because not only is Jonathan a brilliant dentist, he’s an interesting guy to talk to and we almost always have chat about something medical or scientific between bouts of jovial banter.

Daffodils
Daffodils are one of my favourite flowers and for me the real harbinger of Spring. I’m not so fond of masses daffodils (as on the walls of York), and I detest that awful piece of Wordsworth poetry! I’m happier with a few bright golden trumpets in a vase; they are a real joy.

Driftwood and Dunes
Driftwood and dunes here stand duty for the seaside; not tourist infested beaches but the quieter shores of the less fashionable seaside towns. I’m a Londoner, born and bred, but like so many Londoners I would rather be in the country or, better, by the sea. Especially if it is warm, sunny and there’s an interesting beach with driftwood to find or dunes to explore and where one can laze out of the wind. Sun, sea, sand … what could be better?

Dungeness
Still on the seaside theme one of the places I love is the Dungeness headland in SE England. It is a relatively modern wilderness, created naturally by the sea in the last few hundred years, and is one of the largest expanses of shingle in the world. It is a wilderness of shingle; with scattered shanty housing, a lighthouse, a nuclear power station and one end of the Romney, Hythe and Dymchurch Railway (see also here for more on RH&DR). It is genuinely wild, a haven for birds, especially as a stopover for migrants, and for salt-loving flora.

Devon and Dorset
Dorset and South Devon are another area of England which I love, both for their countryside and for their coast. With a few large-ish towns (Exeter, Weymouth, Torquay, for example) large areas of the counties are open rolling countryside with patchworks of fields, woods and villages, fringed along the southern edge by the sea with some glorious relatively quiet beaches, beautiful sandstone cliffs and fossils – it isn’t called the Jurassic Coast for nothing.

Drupe
Isn’t that a wonderful word: drupe. And it is pronounced, as one would expect, just like “droop”, which means something totally different. Drupe is a word which is not much used and hence known by few. Drupe is the correct botanical name for what are sometimes called the “stone fruits”: the fruit of all the genus Prunus (cherry, plum, almond, peach, etc.) as well as oddities like olives and most palms including coconuts and dates. They are characterised by having a hard kernel (hence the “stone”) which contains the seed and a soft, often fleshy and edible, outer. Apparently the word drupe derives from the Greek druppa olive, via Latin druppa, overripe olive. These are fruits which I love.

So there you have it. Ten things which are meaningful to me and begin with the letter D. Feel free to add your own ideas in the comments. And if you’d like your own letter why not visit Hails over at Coffee Helps and ask nicely (would you do otherwise?) for a letter.

Memories Meme


Memories Meme, originally uploaded by kcm76.

This week’s Flickr Photo Meme is about Memories. As usual here are the questions and my answers:

1. What is a special memory of childhood? Hot summer days camping at nudist club; I would have been about 10; in consequence I’ve never been uncomfortable with my body or anyone else’s
2. A memorable romance with? Faith, when I was a postgraduate; I was 23. she was 32; she taught me a lot
3. What was the most memorable gift you have ever received? My first camera, a Halina, has to be up there near the top; I don’t recall exactly when I was given it but I must have been about 12 or 13; look where it has gotten me!
4. What place have you visited that had a memory attached to it? Rye, East Sussex; I remember it from camping with my parents when I was 4 or 5 and have been back numerous times in recent years with Noreen
5. What was a memorable occasion that you recently attended? Almost any meeting of the Anthony Powell Society; this trip to the Widmerpool area of Nottinghamshire was an interesting day!
6. What was the most memorable toy you ever had? My teddy bear and black cat, both of which I still have, must be very near the top of the list
7. Who is the most memorable teacher you ever had? There were many, but Bob Goss and Derek Beadle, who taught me Chemistry and Physics, respectively, in the 6th form were probably the stars
8. Do you have a special collection that is memorable? My Memories, of course! I’m not really one for collecting personal mementos
9. What is your most cherished memento? Noreen, for lots of reasons and not just because she married me!
10. What trophy, ribbon, award, certificate are you most proud of that serves as a memory of an important event? My PhD, not just for the academic stuff but for all the formative extracurricula things too
11. It would be wonderful if all memories were good, but some aren’t; is there a bad memory that you carry with you? Breaking up with my first fiancée, Jill, at the start of our second year as undergraduates; I nearly failed my Part I exams as a result
12. What is your favourite summer memory? Playing Cricket, not that I was ever any good

1. Mother & Son, 2. FAITH: Earth element focal art bead pendant/necklace 1, 3. Halina 35X, 4. Rye, 5. AP Soc Members at Wysall, 6. Little Black Cat, 7. is there a shark behind me? …is that a yes?, 8. memories collage, 9. Noreen, 10. Student Life, 11. Jack and Jill went up the hill, 12. Playing Cricket

As always these are not my photos (except numbers 1, 5, 6, 9 which are mine) so please follow the links to enjoy the work of the photographers who did take them!

Created with fd’s Flickr Toys.

Politicians Out of Their Minds on Drugs

There’s a thoughtful editorial in this week’s issue of New Scientist. As so often I give you an edited version …

Drugs drive politicians out of their minds

Imagine you are seated at a table with two bowls in front of you. One contains peanuts, the other tablets of the illegal recreational drug MDMA (ecstasy). A stranger joins you, and you have to decide whether to give them a peanut or a pill. Which is safest?

You should give them ecstasy, of course. A much larger percentage of people suffer a fatal acute reaction to peanuts than to MDMA.

This, of course, is only a thought experiment […] But it puts the risks associated with ecstasy in context with others we take for granted. Yes, ecstasy is dangerous and people who take it are putting their lives on the line. But the danger needs to be put in perspective.

Sadly, perspective is something that is generally lacking in the […] debate over illegal drugs […] drug policy should be made on the basis of evidence of harmfulness – to individuals and to society. The British government’s stated line is similar, yet time and again it ignores its own rules and the recommendations of its experts. Most other western governments act in a similar way.

The latest example of doublethink concerns MDMA. […] the UK government’s Advisory Council on the Misuse of Drugs […] recommend downgrading it, based on evidence of its limited harmfulness […] Yet the government has already rejected the advice.

No doubt this is partly a reaction to the furore over the […] decriminalisation of cannabis in 2004 […] Despite the fact that the move actually reduced the quantity of cannabis being smoked – surely a welcome outcome […]

[…] David Nutt, found himself in hot water last weekend for comparing the harm caused by ecstasy to the harm caused by horse riding […] [his] intention was simply to put ecstasy in context with other sources of harm. But his comments […] caused predictable squeals of outrage […]

This is a worldwide problem. We need a rational debate about the true damage caused by illegal drugs – which pales into insignificance compared with the havoc wreaked by legal drugs such as alcohol and tobacco. Until then, we have no chance of developing a rational drug policy.

I don’t pretend to know the answer to any of this. But I would echo the sentiments of the editor of New Scientist in pleading for rational and logical debate and thinking which puts all the arguments and risks into a reasoned perspective.

Hills are Alive with the Sound of Ants

There was an incredible article in The Times last Friday (6 February) … Scientists have discovered that ants talk to each other, and they now have miniaturised technology to such an extent that they can listen in. You can find the whole article online here; what follows is a very condensed version:

Advances in audio technology have enabled scientists to discover that ants routinely talk to each other in their nests. Most ants have a natural washboard and plectrum built into their abdomens that they can rub together to communicate using sound. Using miniaturised microphones and speakers that can be inserted unobtrusively into nests, researchers established that the queens can issue instructions to their workers.

The astonished researchers, who managed to make the first recordings of queen ants “speaking”, also discovered that other insects can mimic the ants to make them slaves. Research several decades ago had shown that ants were able to make alarm calls using sounds, but only now has it been shown that their vocabulary may be much bigger and that they can “talk” to each other. Improvements in technology had made the discoveries possible because it meant the ants could be recorded and subjected to playbacks without becoming alarmed.

By placing miniature speakers into the nest and playing back sounds made by a queen, the researchers were able to persuade ants to stand to attention […] It remained unclear how much the ants relied on sound for language but he suspected that further analysis would reveal a wider vocabulary than had been seen yet.

The most important discovery is that within the ant colony different sounds can provoke different reactions […] It’s within the power of the ant to play different tunes by changing the rhythm with which they rub […] The detection of the role of sounds provided the “final piece of the jigsaw” to explain how [some species of butterfly] caterpillars survive in ants’ nests and should help to guide conservationists in trying to save the endangered European mountain species.

[The] new work shows that the role of sound in information exchange within ant colonies has been greatly underestimated.