The showerhead of doom

Daily bathroom showers may deliver face full of pathogens, says study

It's not surprising to find pathogens in municipal waters, said Pace. But the CU-Boulder researchers found that some M. avium and related pathogens were clumped together in slimy "biofilms" that clung to the inside of showerheads at more than 100 times the "background" levels of municipal water. "If you are getting a face full of water when you first turn your shower on, that means you are probably getting a particularly high load of Mycobacterium avium, which may not be too healthy," he said.

Just lucky this research wasn't done while Howard Hughes was around to hear it.

Engineers and terrorism

September 11 Reflections: Terror and Technology - Edward Tenner

Edward Tenner reminds us that engineering has figured pretty prominently as the career of choice of several Islamic terrorists.

Well, anyone who has worked with engineers knows that they are often, shall we say, a bit of a worry.

Unintended consequences

Elton John wants to adopt Ukrainian orphan who 'has stolen his heart' - Times Online

The international children’s charity EveryChild yesterday condemned Sir Elton’s plans, claiming that they could result in more youngsters being abandoned. Anna Feuchtwang, its chief executive, said research showed that news of adoptions by wealthy foreigners encouraged mothers to place their children in care in the hope that they would get a better life. “The actions of celebrities such as Madonna, and now possibly Elton John, could be actually increasing the number of children in children’s homes in countries like Ukraine,” she said.

Mind you, any international adoption from countries with serious levels of poverty, even by run-of-the-mill Western parents, runs the risk of initiating abandonment of children. Foreign Correspondent has a story tomorrow night about this happening in Ethiopia , and it goes on in India too.

I'm not sure the answer is clear, although not giving aging pop stars publicity about their adoption intentions would be a good place to start.

Germany gets the "no-nuclear" wobbles

Germany's energy debate: Nuclear power? Yes, maybe | The Economist

As the Greens think Germany is an outstanding example of a nuclear nation vowing to go non-nuclear, it's good to see that its plans look likely to fall into disarray.

How true

Hey, I do believe xkcd is satirising Ender's Game, which I only read a few years ago and came away utterly puzzled as to why it is held in high regard by many science fiction fans. It was, in my view, just awful.

All the popular topics

Sex in space could be the key to the survival of humans | The Japan Times Online

Here's an article made for this blog: it features rats, sex, space flight, and the future of humanity.

I didn't know this:

In 1979, the Cosmos 1129 space mission, also known as Bion 5, was a joint collaboration between the United States and the Soviet Union. It was primarily a biomedical program, and on this particular mission male and female rats were sent into space and allowed to do what comes naturally.

Whatever problems there might be with having sex in microgravity, floating in space, the rats managed it. I'm not surprised really. If you've ever dissected a male rat in biology class you'll have noted the size of their testicles: I'm sure that given a sniff of a female, even a rat floating in orbit round our planet would try to get it on.

Two other species were on board Bion 5, by the way: the Japanese quail, and some carrots. But my concern here is with the rats. When they returned to Earth, the female rats were examined. Two had become pregnant, but they did not give birth. Apparently the space-embryos were reabsorbed.

The concern is that humans may not reproduce well under less than 1 G.

Observations

Currently reading: A Wrinkle in Time (last read in primary school - it's even more Christian than I remember), Julian Barne's quasi-memoir Nothing to be Frightened Of, and that book about Life and Leisure in Ancient Rome (it can be picked up and put down with gaps of weeks at a time without losing track.)

Currently sick of: politics. I find nothing of interest really going on in Australian Federal politics at the moment. I feel much better about it whenever Kevin Rudd is missing from the TV screens for any length of time. (If he disappeared entirely for 3 months, I am sure his approval ratings would be even higher.) I find Lindsay Tanner the most likeable Labor politician. Tony Abbott has a strange sense of public decency for a serious catholic: the more "s*it" he speaks, the less likeable a significant section of the community will find him.

Current movie viewing plans: see Up. Probably next weekend.

Current problems: work. Too busy, yet I want to check this blog and the internet about 12 times a day.

Something currently feeling vindicated about: my brother who is a semi-regular visitor at St Mary's in Exile in South Brisbane acknowledged it seems to be "losing its way," and attendances are probably down. (The last few sermons I have watched on the internet certainly indicate the place is still in intense navel gazing mode, and is just as dull in its own way as any "traditional" parish with an old priest who re-reads sermons from 30 years ago.)

Learn something

'Inside of a Dog - What Dogs See, Smell, and Know,' by Alexandra Horowitz - Review - NYTimes.com

You will probably learn something you didn't know about dogs if you read this book review.

A late cartoon

Regrets

Mighty Mouse takes off – thanks to magnets - New Scientist

Sometimes I really wish I had become a scientist:

With the aid of a strong magnetic field, mice have been made to levitate for hours at NASA's Jet Propulsion Laboratory (JPL) in Pasadena, California. The floating rodents could provide a valuable insight into how astronauts are affected by extended spells in zero gravity.

Refer to Peter Singer

Mind Hacks: Brain scanning unborn babies

Scientists can now do MRI on unborn babies. Peter Singer, who now just seems to bang on about social justice, but presumably is still of the view that even newborn babies "do not have the same right to life as a person", should read it.

Ocean acidification update, part whatever..

Some recent studies report:

* subtropical corals showing a net loss of calcium carbonate under decreased ocean pH:

These experimental results provide support for the conclusion that some net calcifying communities could become subject to net dissolution in response to anthropogenic ocean acidification within this century.

* the results of experiments on a couple of planktonic foraminifera (which are a small critter that produces calcium carbonate shells) do not like more CO2:

At the [CO32−] expected for the end of the century, the calcification rates of these two species are projected to be 6 to 13% lower than at present conditions, while the final shell weights are reduced by 20 to 27% for O. universa and by 4 to 6% for G. sacculifer. These results indicate that ocean acidification would impact calcite production by foraminifera and may decrease the calcite flux contribution from these organisms.

* bivalves in Antarctic waters (the first predicted to suffer increased ocean acidification) don't take it well either:

After 5 weeks the shells and thallus of the coralline alga had suffered significant dissolution when compared to controls. Moroever, one of the shells of the bivalve L. elliptica in acidified seawater became so fragile it fragmented into multiple pieces. Our findings indicate that antarctic calcified seafloor macroorganisms, and the communities they comprise, are likely to be the first to experience the cascading impacts of ocean acidification.

* Pteropods, and important fish food, show significantly reduced calcification at pH levels predicted for 2100:

This result supports the concern for the future of pteropods in a high-CO2 world, as well as of those species dependent upon them as a food resource. A decline of their populations would likely cause dramatic changes to the structure, function and services of polar ecosystems.

Remember, boys and girls, reducing CO2 is not just about warming.

All about hoki

An Unlikely Star Among Seafood Causes a Row - NYTimes.com

I knew about orange roughy, but until now, didn't know anything about hoki, despite it being a pretty popular fish in the freezer compartment of the supermarket.

Well, now I know.

Just ridiculous

Astronauts could reach Mars in 2020s, panel says

Apparently, it is being suggested that it may be a worthwhile thing to not bother developing landing vehicles for Mars, but just send a crew to orbit around the planet and get close to its moons.

(Or alternatively, go and doodle around an asteroid.)

Is there no limit to the silliness of suggestions that are being put up at the moment?

Using current rockets, a manned trip to Mars is going to be long and tedious, as well as dangerous due to the unresolved issue of how to provide adequate protection from radiation. That you would even think about doing it just to provide more pictures from orbit is about the most ridiculous idea I have ever heard.

If you aren't going to land on the planet, moon or asteroid, you just wouldn't seriously contemplate it.

Naughty names

Teachers believe Callum, Connor and Jack are the naughtiest boys in class - Telegraph

Researchers also found that teachers keep a close eye on those called Chelsea, Brandon, Charlie, Courtney and Chardonnay.

A study of 3,000 school teachers formulated the 'Teachers Pet and Pest Name Chart' which showed that more than a third of teachers expect children with certain names to be more trouble than others.

Just lucky I didn't go ahead with plans to name my daughter Pinot Gris, then.