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Solar Power
Use several mirrors to reflect the sunlight into one spot, then you will have concentrated heat on that spot.
Have 600 mirrors (actually they are 624 heliostats [1]), put them on the field to concentrate the sunlight, and you have enough heat to generate 11 MW of electricity, able to power up to 6,000 homes.
What a wonderful idea 
. A clean energy, and although by now it costs 3 times as much compared to conventional sources, as technology develop, for sure it will get cheaper and cheaper.
The original story is from BBC: “Power station harnesses Sun’s rays,” where I also (without permission) grabbed the picture above .
A little bit of googling here and there, I found this presentation [PDF, 1.59 Mb] by Dr. Manuel Romero on Solair European Consortium very interesting.
[1] May 02, 2007 - Making Electricity with Mirrors and the Sun
Update - May 27th: A more comprehensive blog entry, complete with a clip from the BBC News can be found here.
Daily Bandwidth Usage Over 1 GB ?
Few months ago, I installed the BitMeter II applications to monitor the bandwidth usage of my laptop. You should install it too. It’s freeware and packed with useful features, including bandwidth limit reminder (should you need one 
), and so far I did not feel any performance penalties.
It’s only today that I found this tool also records the monthly bandwidth usage, and quite surprising it is .
Continue reading Daily Bandwidth Usage Over 1 GB ?…
Languages in Indonesia
From Gordon, Raymond G., Jr. (ed.), 2005. Ethnologue: Languages of the World, Fifteenth edition. Dallas, Tex.: SIL International, online version: http://www.ethnologue.com/.
Republic of Indonesia, Republik Indonesia. 238,452,952. National or official language: Indonesian. Literacy rate: 78% to 85%. … … … The number of languages listed for Indonesia is 742. Of those, 737 are living languages, 2 are second language without mother-tongue speakers, and 3 are extinct.
Wow 
I know that there are many local languages in Indonesia, but never expect the number to be over 700. The next time somebody asked me what kind of language Indonesian people speak with, I can confidently provide them with this astonishing statistic .
Phew, lucky that we have Bahasa Indonesia then .
PS. The site also provides interesting maps in where the languages are mainly used. There are 20 languages alone in Java and Bali. Ckckck, so many things I have not known even from my own region where I grew up .
