Category Archives: Science

Recent Interesting Science Articles (September ’10)

Three articles this month and all of them have something to do with biology. The first one is about how some chimpanzees in Africa have learned to recognize and disable traps laid by humans. The second is a statistical analysis of divorce rates sorted according to occupation. The last one is less of a formal article and more of a blog post. It’s about the unexpected benefits of being exposed to, well, human semen, of all things.

The chimpanzee article is from the BBC and talks about a groups of chimpanzees in the rainforests of Guinea who appear to have learned how to identify traps laid by human hunters and safely disable them without getting hurt in the process. They appear to be aware of how the different components of a snare trap come together and know which parts are safe to touch and which parts are dangerous. This has explained the observation that chimpanzees in that area rarely get injured by traps.

Continue reading Recent Interesting Science Articles (September ’10)

Recent Interesting Science Articles (Aug ’10)

This installment will be a little light with just three short articles. One is about how having dogs around seems to improve cooperation between humans, one about using a powerful computer to find every possible solution to the classic Rubik’s Cube puzzle, and the last one looks at how people get trampled to death in large crowds.

Dogs make people more social

The first article is from The Economist and covers research by Christopher Honts and his colleagues at Central Michigan University who wondered if having dogs around in the workplace improved collaboration among people. This was because previous research has indicated that dogs help their owners forge intimate relationships with other people.

Continue reading Recent Interesting Science Articles (Aug ’10)

The ancient Greeks were just as kitschy as we are

Today,  when we think of classical art, few things are as dignified and tasteful as the crumbling statues of ancient Greece. There’s something about the bare, weathered stone pieces, so full of history, that elevates them above mere decoration. In fact, we’re so used to the way they look now that it’s hard to imagine what they might have been like when the pieces were first made.

The article however shows how ultraviolet light can be used to reveal what they were like, or more importantly, what the artists of the time intended them to look like. All of a sudden, the statues seem a lot less dignified and very much like something we might find in a modern amusement park. Take this for example:

The ultraviolet light works by causing the organic compounds used in the original paint to fluoresce. Even in cases where it is difficult to figure out what the original hues were, researchers can also use infrared and x-ray spectroscopy to discover what materials were used to make the paints and derive what the colors must have been from there. It turns out that the Greek artists tended to use very tacky and loud colors which we wouldn’t find tasteful at all.

As one commenter on the article notes, it makes us wonder if someday far in the future, archaeologists might unearth the remains of Disneyland and think that all those figures and decorations represented the pinnacle of our art and were objects of great veneration.

Recent Interesting Science Articles (Jul ’10)

Four articles this month and it’s a pretty mixed bag. The most controversial article of the bunch is one that links autism with wealth, but the one drawing a link between human intelligence and disease rates in different countries comes a close second. Then, there’s the highly speculative paper that offers a new model of the universe that abandons the familiar Big Bang. Finally, just for fun, there’s one article talking about a cheap and effective way of deterring thieves from stealing your car.

Autism, disease of the rich?

The precise causes of autism is as yet unclear and it doesn’t help matters that there’s a major anti-intellectual movement that attempts to link the disease to vaccination. This post on Neuroskeptic points out that autism appears to be more common in rich countries than poor ones, which is odd, but might be explained by the fact that many cases of autism in poor countries might simply be undiagnosed. A new paper however attempts to correct for this ascertainment bias and it discovered that not only were incidences of autism more common in richer countries, they were also more common among richer people in rich countries, independent of ethnicity.

Continue reading Recent Interesting Science Articles (Jul ’10)

Can you parallel park this well?

It’s been a while since I last posted a YouTube video as a post and since I’m busy at work today, here’s a video showing how well a modern computer equipped with suitable sensors can parallel park a car. Note that there’s a human driver in the car but he’s just there for safety reasons and is not driving the car in the maneuver shown in the video. Certainly few human drivers will be able to pull this off.

Originally seen on Marginal Revolution.

Recent Interesting Science Articles (June ’10)

Four articles this month. Three of them are about humans the last one, about giraffes, is just something I threw in for fun. The three articles about people deal respectively with yet another mooted cause for schizophrenia, how our sense of touch affects our judgment and an unconventional, but very intuitive, way of determining whether or not someone is lying.

Schizophrenia

The first article is from The Economist and deliberately evokes a scenario that could have come right out of Invasion of the Body Snatchers. There have been many different causes mooted for schizophrenia over the years and some of the theories I’ve read even include pathogens. But this is the first time I’ve heard that it’s caused by one that explicitly causes behavioral changes in its host to ensure its own propagation.

Continue reading Recent Interesting Science Articles (June ’10)

Recent Interesting Science Articles (May ’10)

Four articles this month with three of them related to human biology. We’ll start with the biggest scientific news of the week however, which I suspect will also be the most important news of the year, about the creation of what is considered to be the first example of synthetic life.

This particular news has been reported in many outlets of course (though strangely I failed to notice it in any local publications) but the particular piece I’m linking to is from the BBC. The team responsible was led by Craig Venter who has already established his place in scientific history for being one of the winners of the race to sequence the complete human genome. This particular project involved creating a synthetic version of an existing bacterial genome and transplanting the result into a non-synthetic host cell. This new cell then replicated itself over a billion times, proving that the synthetic genome worked just as well as the natural one to regulate the bacterium over its life cycle.

Continue reading Recent Interesting Science Articles (May ’10)