Friday, July 20, 2007

Education Wins Again

Some interesting research into what effect marriage has on peoples feelings of happiness has just appeared. Apparently married men are much happier than single men, not exactly a shock I guess, as are married women, though not by the same amount. The discrepancy seems to have something to do with women being happier in general.

Possibly the most interesting finding however is that men with more highly educated wives are happier:

A married man's chances of achieving a high level of happiness - above a score of seven - are improved by 8 per cent for every extra year of education his wife has. But married women's happiness level is unaffected by their husband's years of schooling.

Women do not care how dumb their husbands are - but they feel happier if the men are smarter than they are, the study shows.

So the 8 years of University I have is not doing anything. Dammit. I wonder if the place of education, or the type of study of their spouse has any effect on mens feelings?

Monday, July 16, 2007

On Health Care - Why The State Wins

A couple of things in the last few days have motivated me to post these musings. The first is that last Tuesday a slight eye infection forced me to visit a GP for the first time in about 6 years, the second is that there seems to be a lot of flap in the States at present over the release of Michael Moore's new film, SiCKO, all about the health care system in the US.

First off I'll admit I'm totally biased, I don't know how any civilized industrial nation thinks they can get by without universal state sponsored health care, the fact that only one such country does so probably indicates that most of the rest of the western world agrees with me here. My perception is also coloured by the fact that whenever I, or anyone I have known has needed the NHS it has been very efficient, this clearly isn't always the case, but its good when as happened to me I walked in off the street and had seen a Doctor within 30mins, no appointment, no problem. It was also reassuring to know that the most I would have to pay would be about £6.90 for any drugs, were they to cost £10 or £10,000.

Now the NHS clearly isn't perfect, it clearly isn't even the best health care system around, but I think it is considerably better than a system which is run for profit. Whats more I would argue that if run efficiently any public health care system is clearly better than any private one. For one simple reason, economics, in a public system you remove several layers which are required to add a profit margin to everything they do. For example, in a system like in the US where health care is paid for by purchasing insurance, you have system where if you are ill, you visit the doctor, he does his job, then marks up the cost by ~20% or more to cover the profit margin of his medical group, he then calls your insurer who may or may not decide to pay for any treatment, in any case your premium includes a ~20% markup to cover their profit margin, you then get moved along to a hospital if you require surgery, they also add their own ~20% markup, so you have three layers where you end up paying more for private health care, just so a bunch of rich shareholders get to get richer.

Now people argue that a private health care system is more efficient so you don't notice these markups, because overall the service costs less than the supposedly inefficient state system. This can easily be shown to be nonsense, the US spends %15 of GDP on health care, to provide them a ranking of #37 in the world for health care, France spends %11 of GDP to be #1. Hmm how is that extra efficiency working out for you. It looks even worse when you realise everyone in France gets anything they need, whereas in the States an appreciable fraction of the population has no insurance, so get little or no treatment. So to take the stats at face value, the private health care systems costs you more to provide a worse service, good job. If your a stat fan, in the UK we currently spend around 8% of GDP, to be placed #18. Which anyway you slice it means that the NHS is both more efficient and provides a better service on average to boot. Its important to note that this is of course on average, I'm sure if you have the money in the States you get a good service, the problem is that most people either don't have the money, or are very close to losing their coverage.

There is of course one other major area that nationalised systems can outperform the private sector, in collective bargaining, it always strikes me as amazing that people that support the idea of capitilism (like me) seem happy to allow large companies, Walmart or Tesco for example, to drive down prices by buying in bulk (like me), however when in the States the idea of a similar approach to buying drugs is mooted you hear howls of disapproval (not like me). Apparently cheaper toilet paper is fine, but more affordable life saving drugs, oh no, you have to pay whatever the drug company feels like. If one buying system exists, as does here in the UK, it is much easier for them to say to the pharmaceutical companies, we are going to pay this much, and we'll take 10 million doses. When you have a series of medical groups all competing and serving (comparitively) small numbers of customers, its much more difficult to drive a hard bargain, the drug companies would rather not sell to you then have to cut the prices across the board.

Anyway musings over for the week. Back to work.

Friday, July 13, 2007

Friday Galaxy - 2 - NGC 720

This is a real hot off the press Friday Galaxy, the data for this was only taken last night, in Chile, by those very helpful people at the Gemini-South telescope. I'm using the 12 images they took (4 each of g',r' and i', that's blue, green and red to you and me) to pick out Globular Clusters for spectroscopic follow up.

The image below shows the image produced, there are a couple of odd things about this image. The first is that the galaxy itself is very blue, for an elliptical galaxy this is odd, these are usually known as being red and dead, because they don't form stars. At first I thought I had mixed up the blue and red channels, however in the top left corner you can see a very pretty background edge on spiral and this appears to be just the right colour for a spiral, hmm.

If we assume that the colours are correct and that we are seeing a blue elliptical galaxy, then their are two possibilities: Either some fraction of the galaxy is made up of hot young blue stars, which can't have been formed more than a few Gyrs ago (not that common for ellipticals), or else the galaxy must be very old and lacking in metals. This is one of the major drawbacks of using the colours of astronomical objects like galaxies to tell you about them, there is a degeneracy between the age of stellar populations and the amount of elements heavier than Helium that they contain (their metallicity). Basically things can appear blue for one of two reasons, they are either young, or they have a low metallicity (and are old).



To solve this conundrum will require spectroscopy, which hopefully we will be getting in the next few months. One other interesting thing that appears in this image can be seen in the top left, when you look at the spiral galaxy (shown enlarged below) you can just about make out what appears to be a stream of material trailing to the bottom right. This trail, if real, could be a trail of stars produced by a minor merger event, if I get the chance and have the space when I make up the mask for the spectroscopy I may well try and get a sly spectrum of this just to see whats going on.


That just shows you one of the cool things about astronomy, serendipity means you can find all sorts of interesting things in the unlikliest of places. There are loads of interesting things in the background of deep images like this one, if anyone finds anything interesting in the large version of the image, let me know, you never know I may try and get a spectrum of anything you find that looks interesting enough.

Friday, July 06, 2007

Friday Galaxy - 1 - NGC 524

I've decided to institute a new tradition of posting images of a favourite galaxy on a friday. For the first example I have decided to choose NGC 524, this galaxy is an S0 galaxy that I am working on at the moment.

The images I'm going to show are from archival HST images taken using WFPC2 (PI Brodie project 6554), I have produced a colour image of the galaxy, though I have cheated somewhat, as I only had access to two filters the F555W and the F814W, which I am going to treat as blue and red respectively, I'm then going to use an average of the two as the green channel. The downside is you're pretty much guaranteed to get something that looks red or blue, still this is interesting in itself, as blue galaxies tend to be young and red ones old. So here is the image.



You can see the centre of the galaxy is located towards the top left of the image, the diffuse glow around this is the halo of NGC 524, many foreground stars and background galaxies are also obvious. In this image the galaxy looks fairly boring, a very smooth looking ellipical galaxy, however I had seen some hints of something odd going on in the inner regions in some data I had from the Gemini telescopes and decided to investigate it. What I did was to average the images from the blue and red exposures, as this tends to pick out structures and dust in galaxies, this is because dust tends to absorb different amounts of the two wavebands. What I found was this:


First of all you can see that many objects disappear, this is just because they have similar amounts of flux in the blue and red, the centre of the galaxy however doesn't. You can see that some very pretty spiral structure emerges, so you can see that on closer inspection NGC 524 is being observed face-on, the Milky Way would probably look very similar if you stopped forming stars and then looked at it from above the disc after a few Billion years.

Thursday, June 21, 2007

The Dark Sector Revisited

Over at threesigmaresult.com I have started a revised and expanded version of my dark sector series of posts first seen here.

Tuesday, June 19, 2007

Galaxies, Lenses, Globulars, What More Do You Want?

Welcome to my first post for threesigmaresult! I've chosen to redo a post that previously appeared on my other blog, theobservershunch, I've done this because it was one of my favourites, partly because it has a very pretty pictures but mostly because it describes some research done by some of my colleagues. Enjoy.

Click for VERY Big.

The picture above which was released by the Hubble Heritage Project shows a cluster of galaxies called Abell S0740, the data used to make the picture was collected by a team of astronomers including two of my collaborators/friends at Durham, John Lucey and Russell Smith. There are two versions of the image, one without annotations and one showing zoomed regions of interest. See them both here.

Monday, June 18, 2007

New Blog - ThreeSigmaResult

Myself and CMB have decided to set-up a new blog, this one will be a bit more focussed dealing only with science, so no politics or random distractions. The blog can be found at threesigmaresult.com. The first real post will appear some time tomorrow.

My intention is that any science posts by me will get mirrored here, but if you want to see the full effect of CMB in full flow you'll have to head over to the new blog. Apart from this announcements things should continue as before over here.

Friday, June 15, 2007

Blind Cat Challenge

Wow, I've been busy recently (and ill), work has been hectic what with more telescope time coming our way, conference talks, travel arrangements and writing a paper or two. Now I'm back and getting into the swing of things here is a link to a great time sink that CMB is running over at his blog (and here). The basic idea is that you have to draw a cat in MS paint or the equivalent (using a mouse), but do it with your eyes closed. Its actually pretty damn hard, my effort is below, CMB has now collected over 300 of these efforts and has set up a gallery here, you can submit your own efforts here. The quality is variable to say the least. Enjoy.



What the hell did we do during work hours before the Internet? Seriously, I don't know I'm too young to remember, someone tell me.

Friday, June 01, 2007

Fishing Cats


Not long ago I was talking with some of the members of the group about fishing cats, a type of cat found in Asia that hunts fish, it is a skillful swimmer and excellent fish catcher, partly due to the fact that its paws are webbed. I'm making this post mostly because several people claimed that this weird but wonderful creature didn't really exist and was some sort of hoax along the lines of the pacific northwest arboreal octopus. Well it does exist, its pretty cool and also very cute. With those obvious adaptions for living and hunting in water its also a nice little example of the effect of evolutionary pressures.

Check out the wikipedia article as well as this one from the smithsonian national zoological park. Head here to see them in action. Oh and because I'm nice here's another youtube video of one wandering about.


Want To Be A Crank?

I've just run across this brilliant post over at scienceblogs, setting out how to be the most successful crank you can be, it reads like the DdH/Autodynamics how-to guide to crackpottery. Go on read it, you know you want to. I especially love the suggestion that cranks try to get their papers published in scientific journals.

If you want your manuscript (it may make you sound smarter to call it your "treatise" or "monograph") to actually get published, try something like Medical Hypotheses. Journals with an impact factor of less than 1 might actually be desperate enough to publish something cranky, especially if you can jargonize it enough to make yourself sound smart, or create enough fake data to trick the editors. If it has to do with global warming consider a Wall Street Journal Op-Ed. The Creation Research Quarterly is perfect for anything disproving some facet of evolution, geology, astronomy, or physics. You don't have to be a creationist for them to like your crank theory, anything that pokes holes in dastardly consensus science is a victory.
Then try journals that don't require real experiments, rigorous trial design, peer review or anything that actually indicates actual science has been done. Other cranks in your "field" may have started just such a journal - like the Journal of 9/11 studies. There are about as many places that will publish crank work as there are crank ideas, don't stop trying! If you get your ideas published in such a journal claim victory! You have mainstream acceptance and a publication record now.

Physics Essays anyone?
Or how about how to deal with dissenters:

Accusation: "You haven't published in a real peer-reviewed journal"

Response: Either say "Peer review is just an old-boys network for peon scientists to pat each other on the back", or accuse journal editors of persecuting you. Compare yourself to Galileo.

Accusation: "You don't have solid proof"
Response: Either restate what you said already, restate it slightly differently, call your accuser a name, or suggest they are part of the conspiracy to hide the truth. Compare yourself to Galileo.

This just reminds me of the autodynamics page where they have a picture of Carezani with Einstein, Newton, and Galileo fading off behind him.

I'm sure you'll all be able to spot some of your favourite cranky behaviour in the post, it certainly saved me the time an effort of going an writing a post along those lines.

Thursday, May 31, 2007

Milky Way Behaving Badly


Head over to Space.comfor a story about the dark side of our well behaved galaxy's nature, its being throwing its weight around and generally being a bad neighbour. The story is all about the streams of stars that are being found trailing around the Milky Way, these trails are thought to be the shredded remains of dwarf galaxies or globular clusters that wandered too close to the MW. Below you can see some of the streams uncovered by the Sloan Digital Sky Survey. The streams are detected by looking at the colours and positions of a huge number of stars over as large an area as possible, doing this it is possible to pick out groups of stars with the same sort of colour, implying that they probably formed at the same time from the same material.


Some of the streams have been associated with known GCs or dwarf galaxies, basically these objects lie right in the middle of the stream, in the pictorial representation at the top you can see the original dwarf with its tails of stars which spread out both in front and behind it in its orbit of the MW. Over time the streams will stretch further and further, getting progressively thinner and more tangled, until they form a diffuse halo of stars around the MW.

This kind of research is interesting because the current theories for the formation of galaxies predict that there should be many more dwarf galaxies around the MW than we see at present, one solution is that many of them have simply been torn apart by the MW and their stars spread into the halo of the galaxy. If enough of these streams are found this could help solve this so called "missing satellite problem".

Wednesday, May 23, 2007

More Unusual Nature

After yesterdays story about the gay flamingos acting as surrogate parents the BBC seems to be trying to outdo itself, now they have a story about a shark which has undergone (?) parthenogenesis, that's a virgin birth to the more religiously minded. The shark had become pregnant, despite being kept separate from any males for at least 3 years, genetic testing has since proven that the offspring was produced without any genetic material from a male.

It just goes to prove Jeff Goldblums (as Ian Malcolm) line from Jurassic Park, "Life will find a way", or words to that effect.

Tuesday, May 22, 2007

Flamingos


The BBC has a great story up now, about a couple of gay male Flamingos acting as surrogate parents to a chick. You can find the story here. Apparently they had been trying to steal other birds eggs to raise, and after seeing a nest abandoned the keepers decided to give them the abandoned egg to raise. In another curious part of the tale it turns out that male Flamingos can also produce milk, from their throats, so they can feed the chick until its beak develops enough for it to filter feed.

Saturday, May 19, 2007

Video Round Up

In a similar vein to the previous video, here is a round up of some videos I have come across recently.

First Bill Maher lampooning fundamentalists:


Next:
Jon Stewart on the latest F*$%-Up by the US Attorney General Alberto Gonzalez


Finally:
A great video with a nice bit of science, the helicopter blades in this video are rotating with a frequency which is some (integer) multiple of the one that the video works at, so every time the video records an image the blades have made at least one full rotation and appear at the same place, making it seem that the helicopter is hovering without any support.

Friday, May 18, 2007

Comic Interlude

Crooksandliars had this video up as a celebration of the comics 70th birthday. Being British I have no idea who George Carlin is, but he seems pretty damn funny. If you're of the strongly religious persuasion I would probably avoid it.

Thursday, May 17, 2007

Don't Trust Your Lying Eyes

If you're interested in optical illusions head over here, where they have the finalists from the "Best Visual Illusion Of The Year Award".

The picture above shows the winner, by Frederick Kingdom, Ali Yoonessi and Elena Gheorghiu, its incredibly simple, both pictures are identical (apart from a slight offset due to some dodgy photoshopping I guess) but due to to the way the brain interprets objects receding into the distance it creates the impression that the one on the right is at a greater angle than the one on the left. For a more thorough explanation see here. My head hurts now.

Bear vs. Mear(s)


Bear Grylls has been at it again, this time paragliding around Mt Everest (the picture is from a practice in the Alps I think), the full story can be found at The Telegraph website along with pictures and a video. To the none Brits this post will probably mean very little, but Bear Grylls is what can probably best be described as an adventurer and all round rock hard guy. At the age of 32 he has already carried out some pretty incredible stunts including climbing Everest at the age of 23, as well as being in the Territorial Army SAS Regiment, just check out the wikipedia article linked on his name.

The point of this post wasn't so much to big up the guy but to relay the somewhat counter intuitive personal feeling that as impressive as his exploits have been, I tend to prefer Ray Mears when I'm looking for a bit of outdoor survivalism. This seems to be a feeling shared by many of my friends and at first glance appears to make little sense, Grylls really does some very risky boys-own type adventuring, whereas Mears is, well, a slightly chubby guy that likes to wander round outdoors learning how indigenous people live.

I really don't know what it is, Grylls seems like a genuinely nice bloke, I just think its almost like he's trying too hard, Mear's shows never seem to be trying to impress anyone, yes he knows a thousand ways to start a fire, but that really is never the point. The star of the show is never Mears, its the place he's in and the amazing things you can find lying around.

Plus, if I was stuck in a survival situation, I'd probably opt for the slightly chubby guy, he certainly never seems to have any trouble finding food when he's out in the wilds.

Wednesday, May 16, 2007

See It Before The Lawyers Get Involved

For those who like a bit of schadenfreude, like for instance seeing celebrities as they actually are, check out this site. Its great, its a professional retouching company, I can't link to the actual page, so click on portfolio at the top of the page to see before and after photoshopping pictures of celebrities (just click on the thumbnails and then slide the mouse over the pictures). I'm slightly surprised to find that they put this up there, I would have thought their clients would want this kind of thing kept quiet.

My personal favourite the before and after of Eva Longoria, where they felt the need to make her ass bigger. Just more proof that its impossible for real people to look anything like celebrities appear to.

Tuesday, May 15, 2007

Dumb Invention


The prize for the dumbest invention of the week goes to: The Mayo Clinic.

This remarkable invention is basically a treadmill strapped to a desk, its designed to allow obese people to get exercise while they work. The BBC has a story here. The whole thing is so preposterous I had to check it wasn't April 1st, there are so many things wrong with this I'm not sure where to start.

First the practicalities, how easy is it going to be to type whilst walking? I foresee a lot of motion sickness here.

Second, its designed to help people that work in sedentary jobs, the test subjects were obese people who admitted to doing no exercise, which leads to the question who exactly is going to go for one of these? Who in their right mind will choose to do exercise at work if they can't be bothered to do any outside of work? Is the idea that companies will compel their overweight staff to use them, trying to get those health care costs down perhaps. I just don't see who can seriously expect this to be used by anyone.

Third the benefits, a net loss of weight of perhaps 30kg per year is nice, but after spending £1000 each is that really good value for money? The machines run at 1mph and people are expected to use them for 2 to 3 hours per day, why not just walk to work and back at a reasonable 4mph, saves money, and you get some fresh air?

I swear next someone is going to invent a running/cycling machine for use in cars (obviously not when driving), so people who can't be bothered to walk or cycle to work can "get some exercise" on the way to work. In fact I may go an patent that right now.

Note: The BBC has now tried out working at a treadmill, concurring that it is damn near impossible.

Child Of The Eighties?

To continue the theme of stealing posts from my brother, here is another one that could (if I can be bothered) run and run. If you were born in the early '80s the following should have been an important part of your childhood:

1) That pinnochio cartoon where it goes "Pee Eye En Oh double See aich eye oh, that's Pinnochio!"

2) The Teenage Mutant Hero (as Ninja was deemed too violent for the UK's kids - haha) Turtles, Leonardo, Donatello, Michaelangelo, Raphael and Splinter probably gang banging April O'Neil off camera. Krang was that brain thing in the body of a bouncer, Shredder, Beebop and Rocksteady (can't remember which was the Rhino and which the Hogg).

3) Ghostbuster - duh duh duh duh duh duh duh - Ghostbusters!

4) Thundercats - are on the loose! Liono was blatantly banging Shitara or at least watching her getting changed using the Sword of Omens to give him sight beyond sight.. Snarf probably watched and Panthro was probably jealous so he sabotaged the Thundertank.

5) Pogs - what was the point?

6) Premiership 1993 stickers, people would go through everyone elses stickers and go "need" or "got" and sometimes in the school yard kids would throw them up in the air and shout "scramble" at which point there would be a massive scramble to get as many as possible, worth their weight in gold.

7) That shitty bodger and badger, one of them liked mashed potatoes.

8) Count Duckula and that castle that was able to teleport.

9) Supersoakers, if you had any less than a supersoaker100 you were considered to be a failure of a man, the supersoaker was to many the childhood equivalent of the penis. The supersoaker200 was the best as it combined a decent amount of power so that you could feel it when you got squirted but it wasn't so big that it slowed you down. This lad I knew had the one with the backpack for the water - just pure greed.

10) Tamagotchis - what a load of bollocks. The were the bane of the teachers lives at our middle school as kids would excuse themselves so they could go feed their snake or something, some teachers thought it meant they were going for a tug.