Solar Lamps Replace Kerosen.html">e Lamps
According to the International Energy Agency, at least 20 percent of the planet's inhabitants are still without electricity. In Sub-Saharan Africa, and the slums of India instead they use candles, gas lamps, and open fires. Dr Evan Mills, the founder of the Lumina Project, which promotes low-carbon alternatives to fuel-based lighting. According to studies conducted by Mills and his colleagues at Berkeley Laboratory at the University of California, kerosene lamps consume 77 billion liters of fuel worldwide. If a kerosene lamp burns for four hours a day it gives off 100 kg. of carbon dioxide a year. Kerosene lamps can also cause respiratory problems. Now Mills has created a lamp that is solar powered, called the LED lamp. It burns 100 times brighter then a kerosene lamp on very low wattage.
Wednesday, January 11, 2012
Wednesday, January 4, 2012
Organizing Information Assignment
I keep my computer organized at home by having folders for different things. Such as, downloads, pictures, documents, videos,etc. I use a nonhierarchical system on my computer.Tagging is something used to make it easier to use bookmarks. Social bookmarks are methods for internet users to organize, store, manage, and search for bookmarks for resources online. An example of tagging would be tagging someone in a photo on Facebook. An example of social bookmarking is adding a bookmark of YouTube to your computer so that when you go on the internet all you have to do is click a button to get to it.
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