Archive for April, 2009

Tuesday Picture: a spacewalker from the ground

Tuesday, April 28th, 2009

I haven’t posted much in the last couple of weeks I know, but I have a few things in mind I’m working on. To start here’s a nice picture continuing the rather local theme of recent posts:

International Space Station, possibly showing <a href=http://en.wikipedia.org/wiki/Joseph_M._Acaba>Joseph M Acaba</a>

International Space Station, possibly showing Joseph M Acaba

This is the International Space Station, photographed by Ralf Vandebergh. He’s an amateur astronomer, and he took the picture from the ground using a video camera and a simple hand-guided, ten-inch telescope. As if that weren’t impressive enough, it seems likely that the white speck shown in the inset is a spacewalker - a lone human being photographed from over 200 miles below!

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What passes for consistency at the Daily Mail

Wednesday, April 15th, 2009

In case you suspected that the Daily Mail might be more interested in journalistic integrity, truth, the health of its readers or even simple consistency than writing what it thinks will sell the most papers, here’s something to make you reconsider. Martin of The Lay Scientist has accidentally discovered that the paper is either viciously against or stridently for the controversial* HPV vaccine - depending on which side of the Irish Sea you’re on.

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Tuesday Picture: Earthrise

Tuesday, April 14th, 2009

Here’s a famous picture in an unusual orientation: ‘Earthrise’ taken by William Anders on Apollo 8, the first manned mission to leave Earth orbit and to see the far side of the Moon.

The Earthrise photo in its original orientation. Credit: William Anders and NASA.

The Earthrise photo in its original orientation. Credit: William Anders and NASA.

It’s usually called ‘Earthrise’ and shown with the Moon’s surface horizontal (see below). But that’s not the orientation Anders saw it in: to him, the Moon was on his right and the Earth appeared from behind it as the ship’s orbit brought it away from the dark side.

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Bad Science: update

Sunday, April 12th, 2009

Shortly after I reviewed Bed Goldacre’s book Bad Science he released an extra chapter, which is in the new printing of the book and available for free on his website. This chapter concerns a man called Matthias Rath, whose hobbies include selling vitamin supplements to AIDS sufferers; claiming that people who give out actual medicine are part of a shadowy conspiracy to murder South Africans; and threatening legal action against anyone who disagrees with him (as though scientific truth and health policy were best established in courts rather than with, say, science). The fact that he was suing Ben Goldacre and the Guardian for writing nasty things about him is what prevented the chapter from being published earlier (he lost).

The chapter makes for interesting reading; particularly the part where Rath and his friend call for the International Criminal Court to have their detractors tortured. And lest you be tempted to dismiss him as a harmless crank, Goldacre also details the South African Government’s collusion in his successful campaign to manslaughter tens of thousands of its citizens.

How to read Wikipedia

Saturday, April 11th, 2009

The problem with Wikipedia is that it only works in practice. In theory, it can never work.

- the Zeroth Law of Wikipedia


Used correctly, Wikipedia can be a brilliant tool for science communication (among many other things). Where else is a single, easily-searchable database of so much information on such a wide variety of scientific topics, much of it aimed at the relative layman?

Wikipedia has its weaknesses, of course - as many people have pointed out at length. It’s my opinion that these are nowhere near as crippling as many people seem to think. What I’m certain of though is that Wikipedia’s usefulness can be greatly increased, and the effect of its flaws lessened, by using it sensibly and with experience. So here is some advice on doing just that, gathered from my own fairly extensive experience using and editing Wikipedia.

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Book review: Bad Science

Saturday, April 4th, 2009

Last week I was ill, which is partly responsible for my lack of posting. It did result in a lot of lying in bed reading though, so here are some fruits of my efforts in the form of a book review.

Bad Science Bad Science is by Ben Goldacre, a junior NHS doctor who writes a column for the Guardian and a blog of the same name.

When I first heard of the book I was expecting it to be a collection of articles from his column, perhaps expanded to somewhat greater detail. I was quite wrong: it’s much more of a full book than a collection of essays.

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A startling new type of galaxy cluster

Wednesday, April 1st, 2009

A paper out today by Pedbost et al presents a new type of galaxy cluster with some fairly interesting properties. It seems these clusters are pretty rare, but the Galaxy Zoo project managed to identify this one with the help of volunteers. I’m a little pressed for time right now but the paper’s perfectly understandable so I recommend you go and read it yourself - there’s also some good stuff in the references section if you’re interested in knowing more.