eu-jin’s posterous

Stuff I'm interested in 

Horrendous Traffic Jams

A combination of poor infrastructure and gas at 4 cents a liter creates "semi-permanent traffic jams" in Caracas, the capital of Venezuela. Apparently, a commute of 19 miles takes 3.5 hours; and I thought my commute is bad at 1 hr to cover 40 miles each way ...

http://www.economist.com/world/americas/displaystory.cfm?story_id=12208710

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Camouflage

I enjoy reading the Economist's tech quarterly's for articles like this one on camouflage.

Research in human vision has resulted in the pixellated camouflage uniforms worn by some armies, but that's old school now. New materials such as plastic sheets with LEDs can take on the patterns recorded by tiny video cameras and provide much more effective camouflage for tanks and other objects.

Beyond visible wavelengths of light, there are infrared blocking materials that can hide human heat signatures, vehicle motors among other things.

On the detection side, it appears that stealth aircraft can be detected from the interference it causes to mobile phone communications on the ground.

http://www.economist.com/science/tq/displaystory.cfm?story_id=11999355

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Most likely to die of poisoning

Interesting statistics on the probabilities of dying through various causes in the US. Surprisingly, you're most likely to perish through poisoning, followed by falling.



http://www.economist.com/daily/news/displaystory.cfm?story_id=12079086

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Why I don't post decent pictures on facebook

I remember a while back when I first signed up for facebook, I took a look at their terms of service for content posted onto the site, and was very surprised to read the following draconian clause:

"By posting User Content to any part of the Site, you automatically grant, and you represent and warrant that you have the right to grant, to the Company an irrevocable, perpetual, non-exclusive, transferable, fully paid, worldwide license (with the right to sublicense) to use, copy, publicly perform, publicly display, reformat, translate, excerpt (in whole or in part) and distribute such User Content for any purpose, commercial, advertising, or otherwise, on or in connection with the Site or the promotion thereof, to prepare derivative works of, or incorporate into other works, such User Content, and to grant and authorize sublicenses of the foregoing."

I'm not a lawyer, but it seems to me that once you post a photo or any other content on the site, Facebook essentially earns a perpetual license to do whatever they like with it. Granted that almost all photos are not valuable in any commercial sense, I still prefer to keep rights to my images and not just hand them out to anyone. After all, Flickr is free and they don't claim to hold any rights to your photos posted on it.

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Discretionary Spending

A survey of discretionary spending in various countries reveals that 57% of Asia-Pacific people prefer to save their disposable cash rather than spend it, and 2/3 of Russians say that if they had disposable cash, they would buy clothing.

http://www.economist.com/world/international/displaystory.cfm?story_id=11986140

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Helicobacter Pylori

In 2005, the Nobel prize for medicine was awarded to the scientists that discovered that the bacterium Helicobacter Pylori was responsible for "90% of duodenal ulcers and up to 80% of gastric ulcers". One of the winners deliberately infected himself with the bacteria in order to show that it was indeed the cause of such ulcers.

So it seems like a good thing that H. Pylori should be eradicated. Unfortunately, new research appears to show that mammals and the bacterium share a symbiotic relationship for the last 60,000 years. Indeed, H. Pylori may help humans strengthen their immune systems, regulate stomach acid levels, and also control the two hormones that regulate our appetite.

Since the widespread use of antibiotics 50 years ago, H. Pylori "infected 70-80% of the human population", whereas now "only 5% of American children have it". This decrease in infection by H. Pylori could be linked to the increase in incidences of heartburn, asthma, and obesity in the US.

http://www.economist.com/science/displaystory.cfm?story_id=11959214

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Bike Theft in Toronto

A used bike dealer in Toronto was caught with close to 3,000 stolen bikes! Apparently he was so well known in the city that people would routinely visit his store after their bikes got stolen and retrieve their bikes by either arguing with him, or paying $30 - 40.

A friend of mine who bought a bike from this dealer informed me that the dealer offered to sell him bike insurance for $25, where if the bike somehow reappeared in his store, my friend could have it back for free!

http://www.nytimes.com/2008/08/22/world/americas/22canada.html?ex=1377057600&en=239c94e5c8744ec5&ei=5124&partner=permalink&exprod=permalink

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Smart people are cool in China

The following article elaborates on how in China, the cool kids in school are the children who do the best in school. This observation jibes with my personal experience growing up in Asia; the smart people in school were as respected as the athletes. In the US, however, the jocks are the cool kids in school and the smart people are commonly regarded as geeks and nerds.

http://online.wsj.com/article/SB121909869003651101.html?mod=hpp_us_inside_today

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How DEET works

For the longest time, no one really knew how DEET, a mosquito repellent, worked in repelling mosquitoes. The mainstream consensus was that DEET somehow masked certain chemicals in humans that attracted mosquitoes. New research that directly measure mosquito antenna neuron activity shows that DEET actually works because it is very smelly to mosquitoes. They also find that there is a whole class of chemicals that is even "smellier" to mosquitoes than DEET, which will lead to better formulations of mosquito repellent.

One interesting point is that the recommendations that I've read for DEET say that you have to apply it to the skin because of the scent masking reason, but this new research seems to suggest that you can apply DEET to your clothing and it will work as well.

http://news.yahoo.com/s/nm/mosquitoes_deet_dc;_ylt=Aqwh.yxZxBGTdT.RmE2VKysDW7oF

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Taping over brands of Olympic non-sponsors

China apparently has armies of workers in the Olympic venues using little pieces of tape to cover all logos of products of non-sponsors --- even the brands of toilet fixtures are taped over!

http://online.wsj.com/article/SB121885240984946511.html

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