Nicole Kuepper
"To pattern the cell we spray on something like nail polish and then inkjet print a kind of nail polish remover which lets us etch certain parts of the wafer. This creates a metallisation pattern so we can deposit aluminium on the back surface of the solar cell and create our metal contacts to both the P and N-type silicon simultaneously using a very cheap, low temperature pizza oven! And hey presto we've created a simple, low-cost solar cell without having to use expensive high tech equipment or high temperature processes!"
(source:http://eureka.australianmuseum.net.au/A4D69CF1-9890-B67D-2409EF3BFCD8F038?DISPLAYENTRY=true,accessed on 21.04.10)
Charles Darwin
"It may be said that natural selection is daily and hourly scrutinizing, throughout the world, every variation, even the slightest; rejecting that which is bad, preserving and adding up all that is good; silently and insensibly working, wherever and whenever opportunity offers, at the improvement of each organic being in relation to its organic and inorganic conditions of life."
source:The Origin of Species by Means of Natural Selection, 1859
Stephen Hawking
"The usual approach of science of constructing a mathematical model cannot answer the questions of why there should be a universe for the model to describe. Why does the universe go to all the bother of existing? "
source:http://www.brainyquote.com/quotes/authors/s/stephen_hawking.html,accessed on 21.04.10
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