Category Archives: science

Infinitely Boggling Science

Time to catch up on some Scientific American articles I’ve read over the last few weeks.

Remembrance of Things Future
An interesting article on how a writer in December 1900 thought things would be a century later. As expected some right:

  • ready cooked meals will be bought from the equivalent of bakeries
  • no street cars (ie. trams) in large cities

but mostly wrong:

  • mosquitoes, flies, rats and mice will have been exterminated
  • the alphabet will not longer contain C, X and Q
  • all traffic will be below ground, consequently
  • cities will be free of noise
  • Nicaragua and Mexico would be part of the USA

Full article
Complete list of original predictions

Infinity
Hard question of the year: Does infinity come in different sizes?
Hard answer: Yes.

This back-page “Fact or Fiction” article from January’s Scientific American contains some interesting insights, and some interesting mathematical sleights of hand. We probably all accept that there are an infinite number of integers (the natural numbers 1, 2, 3 …). And between each pair of adjacent integers there are an infinite number of fractional numbers (2.1, 2.11, 2.111, 2.112112 …). That means there are infinity to the power infinity real numbers (natural numbers and fractions) – which is an infinitely different ball-game in terms of defining the size of infinity.

Full article

Love, Sex and Robots
Finally an item from the March Scientific American which considers the proposition that we might one day (soon) be able to have a relationship with, marry and even have sex with, a robot of the opposite sex. Scary? Probably for most of us. Fantasy? Probably not. After all go back 100 years and the idea of male homosexual marriage was absurd. Apparently there is a lot to be said for allowing the socially inept [my phrase] to gain some mutual comfort from a relationship with a robot. And there are already experiments showing that children (at least) will spontaneously treat a robot as (almost) sentient, for example by putting it to bed when its batteries run flat. I see the arguments, but I remain firmly skeptical.

Full article

Mammal Senses

There was an interesting article in last week’s New Scientist about the strange anatomy of the brain. It contained this quote:

No matter how bizarre a vertebrate is, it receives only three types of incoming sensory data: chemical (smell and taste), electromagnetic (light, and electric and magnetic fields) and movement (touch and sound).

I’d never quite looked at it this way before, but of course it is right. The only bit I don’t understand is what organ we use to detect electric and magnetic fields. Maybe we don’t. Maybe this is the preserve only of pigeons, which have been shown to have lodestone like sensors in their brains. Interesting though.

Circumcision

Writing my Thirteen Things post for Flickr the other day set me thinking …

I made the comment that I am glad my parents didn’t have me circumcised. I won’t say that their decision was great foresight: from my observations the rate of male circumcision of my generation in the UK is somewhere around 30-40% (amongst Americans it is more like 80%), and moreover my father was also entire so probably didn’t feel there was any “precedent” to follow. So my parents weren’t exactly bucking a trend (medical or otherwise). But I’m still glad that I’m entire; I like being entire; I’m comfortable with my “male apparatus” and I would never have inflicted circumcision on any son I might have had.

But there is one thing I do not understand about our western culture. Female circumcision, as still practiced in many parts of Africa especially, is considered barbarous, a violation of a woman and abuse. And I have to agree; it is all of these. And yet, male circumcision is considered much more (though not universally) acceptable; even those who are against male circumcision don’t generally have “screaming fits” about it the way they do over female circumcision. It is even being advocated as a way of constraining the spread of HIV, as I’ve blogged before. Why is this? I do not understand how one can be considered barbarous and the other acceptable.

OK, so before anyone screams at me let’s be clear. Male circumcision (at least as we practice it in the western world) is generally performed on the very young, by a surgeon, often with anaesthetic, in a sterile surgical environment; hence immediately post-operative complications are rare, although no-one seems to agree about the long-term effects on sexual function. Even if performed later in life male circumcision is a proper medical procedure. This contrasts with the vast majority of female circumcision in the developing world, where the operation is mostly performed by the medically unskilled, without a sterile environment, seldom any anaesthetic and mostly against the will of the female concerned who often has to be physically restrained. Needless to say post-operative complications appear to be the norm rather than the exception and death is not uncommon. The UN and WHO now use the term Female Genital Mutilation (FGM) when referring to female circumcision, but make no comment on male circumcision

But I still don’t see how it is acceptable for parents to have an infant boy routinely circumcised without any immediate medical necessity – as is still widely practiced in the USA. And I include in that the religious practices of both Judaism and Islam – albeit I can understand how male circumcision may have originally arisen in an ancient, hygienically-challenged, desert community, even if this was based on a false premise.

Having started writing this I found a good couple of paragraphs at the History of Circumcision which sum up my dilemma:

Given the similarities between the male and female genitals, the nature of the surgery and the justifications offered, it is surprising that male and female circumcision enjoy such strikingly different reputations, at least in Anglophone societies: the first, a mild and harmless adjustment which should be tolerated, if not actively promoted; the second, a cruel abomination which must be stopped by law, no matter how culturally significant to its practitioners. If you call circumcision of boys male genital mutilation, you are accused of emotionalism; if you fail to call circumcision of women or girls female genital mutilation you are accused of trivialising the offence. While the United Nations, Amnesty International and other international agencies spend millions on programs to eradicate FGM, they have never uttered a word against circumcision of boys.

It might be thought that the reason for this double standard lies in the greater physical severity of female circumcision, but this is to confuse cause with effect. On the contrary, it is the tolerant or positive attitude towards male circumcision and the rarity of female circumcision in western societies which promote the illusion that the operation is necessarily more sexually disabling, and without benefit to health, when performed on girls or women. It is, of course, also true that the term female circumcision is vague, referring to any one or more of a number of surgical procedures.
… …
But it should be remembered that the most extreme forms of FGM are rare, and that male circumcision in general is far more common on a world scale than female: about 13 million boys, compared with two million girls annually.
… …
Given the respective numbers of victims involved and the fact that some circumcisions are worse than some instances of FGM, there is no justification for perpetuating the gender discrimination which has characterised discussion of these issues.
… …
To compare female and male circumcision is not to trivialize the enormity of the first, as some feminists seem to fear, but to recognise that the physical and moral similarities between the two are very real.

So here we have it. The two “procedures” while different are the same. So why is it OK for males to be circumcised but not females? Even after reading a number of worthy websites on the subject I still do not understand.

PS. Anyone who wishes to delve a little deeper might like to start with:

Drugs to be Legal in 10 Years?

Yes, you read it right! This was the thrust of a BBC News item yesterday. Richard Brunstrom, Chief Constable of North Wales, believes that in about 10 years time drugs which are currently illegal will be legalised. His logic is impeccable:

  • Over 50% of all recorded crime is caused by people feeding a drugs habit.
  • Despite drug misuse falling (slowly) because of better treatment programmes it is still causing a £20bn a year hole in the country’s finances.
  • Portugal has already gone the legalisation route
  • And it is being talked about elsewhere in the world (although the article doesn’t specify where!).

All that is needed is a shift in public opinion (as has happened against drink-driving in the last 20 years or so) and the change will become inevitable, Brumstrom appears to believe.

But interestingly there is one argument which hasn’t been used – and which is sometimes used for the legalisation of cannabis: if it is legal you can regulate the supply (by licencing sellers) and you can tax the proceeds. That has to be powerful: stop large swathes of crime, save £20bn a year, and generate income as well.

Even so, personally, I can’t see it happening. I cannot see any politician sticking their neck out and advocating such a policy, let alone voting for it. The legalisation of cannabis I think will come, although it may take a while yet. However I’m not sure that the legalisation of heroin, cocaine, etc. isn’t a step too far even for me, at least at present. But it is an interesting idea, and one worthy of discussion. And hoorah for a senior plod who has enough foresight to be able to think outside the box!

Dr Alice Roberts

In the latest issue (January 2008) of BBC Focus magazine (science for the intelligent 10-year-old) there’s a mini-interview with one of the few females on TV who really do make my heart beat faster: Dr Alice Roberts, “clinical anatomist, archaeologist, TV presenter and author”, also a very talented artist and a qualified medic. Those of you in the UK who’ve watched either Time Team (Channel 4), Coast (BBC2) or Don’t Die Young (BBC2) will know Alice Roberts as the slightly off-the-wall girlie with the dyed red hair. The interview includes:

What’s the greatest threat to humanity?
Humanity.

Who would you clone?
I wouldn’t. Sexual reproduction is much more exciting.

What would your epitaph say?
Boadicea, Queen of the Iceni. And I’d be buried in a chariot just to fool future archaeologists.

Seriously Zen Mischief!

Fictional Flying Carpets

Magic carpets are GO! According to a report in the Daily Telegraph of 19 December magic carpets are no longer a flight of fancy confined to the realms of the Arabian Nights. Professor Lakshminarayanan Mahadevan of Harvard has shown that the flying carpet is possible under the laws of Physics, although to be useful a lot of work will have to be done on the power to weight ratio. Good news for those of us who hate wasting time travelling.