Category Archives: Science

Of bandwidth caps and pay as you go Internet

Maybe I’m easily amused, but I had fun reading through this huge troll of a thread on LYN yesterday evening. It was clearly posted from a dupe account made for the specific purpose of starting that thread, but the inspiration came from a comment by the real Fikri Saleh during an online interview with the Malaysian Minister for Science, Technology and Innovation Datuk Dr. Maximus Ongkili organized by The Star:

I am an Electrical Engineering undergraduate from the University of Melbourne, currently majoring in telecommunications. In Australia they charge you for download quotas, where the more you download, the more you will have to pay, say 100 GB @ $100 versus 20 GB @ $20, after which the speed is throttled down (slowed). By charging more for more quota, this can improve overall connection quality. The heavy downloaders can still download, but now they have to pay more. Thus we normal users do not have to put up with the network being bogged due to these heavy downloaders, because there will be fewer of them.

Regards,
Fikri Saleh

Continue reading Of bandwidth caps and pay as you go Internet

H1N1 Pandemic Fears: Justified or panic reaction?

So the World Health Organization has declared H1N1 as a pandemic, which prompts questions of whether the fears over it are justified or a panicky over-reaction. I didn’t elaborate on the H1N1 precautions in Hong Kong in my earlier post, so let me say here that while they’re not exactly in a panic over it, it’s obvious enough that they’re taking it a lot more seriously than most people in Malaysia. Posters urging the public to take health precautions are everywhere and every time we used the subway, we were constantly bombarded by warnings and advice about respiratory diseases over the public announcements system.

One particular precaution that we found novel was placing hand sanitizers in many public areas. They seem to dispense some sort of alcohol-based disinfectant that you’re supposed to use regularly. Since the substance just evaporates, it won’t leave your hands slimy or wet. Many surfaces that you might expect members of the public to touch on a regular basis, such as escalator handrails, elevator buttons and even seats in public waiting areas had signs indicating that they’re disinfected on a regular schedule. Obviously all these measures take quite a bit of effort and money to implement, which means that they need to be justified on a cost-benefit basis.

Continue reading H1N1 Pandemic Fears: Justified or panic reaction?

Recent Interesting Science Articles (May ’09)

I haven’t had as much on the Internet as I’d have liked this month, so apologies for having only two articles this time. The first one is an odd feature from New York Magazine that doesn’t really count as a real science article at all, but is relevant enough that I think merits inclusion. The article mentions in passing research by Kathleen Vohs of the University of Minnesota’s Carlson School of Management on how just the act of thinking about money influences how people act and behave.

In one experiment, she found that it was possible to influence how much people were willing to collaborate on group efforts simply by switching screensavers. Eighty percent of the group who had been given screensavers of floating dollar bills to stare at chose to work alone. Eighty percent of those who were given screensavers of exotic fish chose to work together with others. The article goes on to make some not entirely scientific generalizations about how the current recession can be seen as being a plus for changing people’s priorities and making them better people, but the initial point alone is good food for thought.

The second article appeared in The Economist and explores the link between creativity and the experience of living abroad. It covers research by William Maddux of INSEAD and Adam Galinsky, of the Kellogg School of Management in Chicago who used a simple test to determine the level of creativity of their test subjects and linked that to whether or not these people had any experience in living abroad. They found that sixty percent of those who had overseas experience managed to solve the problem compared to only forty two percent of those without that experience.

A follow up experiment aimed at measuring the participants’ ability to come up with creative solutions to difficult negotiating positions also turned up similar results, suggesting that it is the experience of living abroad opens minds to new possibilities and expands their creativity. One easy criticism is that their stated problem may not be a good test of creativity, especially the sort of creativity that is associated with writers and artists like Rudyard Kipling, Pablo Picasso and Ernest Hemingway, but my personal instinct is that they’re probably right and that living abroad should tend to open up the minds of young people and enable them to think out of the box. It would particularly interesting to see student exchange programmes being organized on a widespread and systematic basis to take advantage of this but that would likely be too expensive.

Recent Interesting Science Articles (April ’09)

Just three articles this month, all of them related to biology in one way or another. The first one concerns what looks like an evolutionary adaptation in humans to living in the tropics. As this article from BBC News explains, scientists have long known that the birth rates of boys and girls vary across the world and that one of the factors that determine this variance is environmental stress. Biologically, males are considered more fragile than females and since having children is a huge investment, it makes sense that in a harsh environment, women tend to give birth to more girls since they would be likelier to survive.

According to research by Dr. Kristen Navara published in Biology Letters, people who live in the tropics produce more girls than boys compared to more temperate regions, even after adjusting for differences in lifestyle and socio-economic status. As Dr. Navara explains, this could simply be because male sperm works in a different way closer to the equator or that miscarriage rates might be affected somehow, but it could also be interpreted to more generally mean that living in the tropics is itself a form of environmental stress on the human organism.

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Robot controlled flying sniper

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This is an invention that could have come straight from a sci-fi movie: a remote-controlled helicopter drone equipped with a highly accurate sniper rifle capable of seven to ten aimed shots per minute. It’s all over the various news outlets now, but because a QT3 member actually worked on it, it got posted there before the news really spread out. The Wired article even leaves out the best part. It mentions that it uses a videogame-type controller, but Charlatan on QT3 reveals that it uses an actual Xbox 360 controller to control its flight.

As other posters on QT3 have jokingly pointed out, this must be a great way to save on operator training costs. Look at how many people are playing Halo with the same controllers already!

Recent Interesting Science Articles (March ’09)

Since my last entry in this series was a bit light, here are four articles for this month. Two are from The Economist, with one of them on how physics might help answer an age-old philosophical question and the other on how appearances count for more than we think. Of the remaining two, one is from CNN on a novel use for the laser technology originally conceived for the Star Wars anti-missile program and the last one is from the BBC on yet another piece of news “proving” that playing games is good for you.

The philosophy problem to start with. The question is no less than whether or not reality exists when we’re not looking at it, and if it exists, does reality behave in a different way when we’re not looking than when we are? Drawing on the theoretical work of Lucien Hardy who proposed a thought experiment whereby a pair of matter and antimatter particles could meet but do not mutually annihilate themselves under the condition that the interaction remains unobserved, two independent teams of physicists successfully performed the experiment as described. So it seems that people can indeed tell whether or not someone is honest just by looking at his or her face.

Continue reading Recent Interesting Science Articles (March ’09)

Evolution education under attack in Texas (again)

Just a quick link to the news that the Texas school board is voting this week on a new curriculum that would challenge the principle of evolution. It’s pretty depressing that the chairman of the school board is someone who believes that God created the Earth less then 10,000 years ago. So again, for anyone who still has any doubt about evolution and wants to educate himself or herself on the mechanics and literature behind what is now of the most solidly well-documented principles in science, just go spend some time on the TalkOrigins Archive.

One thing that I’m somewhat grateful for is that Muslims at least don’t seem to have jumped onto the Creationism bandwagon in a big way. Then again, our Education Minister in Malaysia has just called the leader of the opposition a race traitor so that’s not much of an improvement.