Here are the answers for the quiz on 17th Nov 2010:
Q1. Who is known as the Father of Surgery in India and the Father of Plastic Surgery?
A: Sushruta. He lived and taught near Varanasi around 600 BC. His Sushruta Samhita is the one of the oldest texts on surgery. In it, he describes over 120 surgical instruments, 300 surgical procedures and classifies human surgery into 8 categories. Among the surgeries he performed were cataract surgery and plastic surgery: http://en.wikipedia.org/wiki/Surgery#History
Correct answers: @sageisfree, @Prashanth_Krish, @centerofright, @kirankarlmarx, @kishor_narayan, @quietist, @ssudhirkumar, @KVSarmaJ
Q2. Which physical principle is behind the lift produced by an aeroplane's wings, allowing it to fly ?
A: Bernouli's Principle. http://library.thinkquest.org/2819/bernoull.htm
Correct answers: @kishor_narayan, @kirankarlmarx, @Karmasura, @KVSarmaJ
Q3. Which computer worm is in the news for targetting industrial infrastructure, notably Iranian nuclear facilities?
A: Stuxnet. Reported in June 2010, it is a Windows-based worm that targets critical control systems in industries. Its most notable victims were the nuclear facilities at Natanz and Bushehr in Iran. The sophistication of the worm indicates that it could have been developed only with nation-state support for a specific objective. It was suspected that Stuxnet was used (by the Chinese – they say) to damage INSAT-4B but ISRO has ruled out Stuxnet's role in the whole affair.
Correct answers: @Prashanth_Krish, @Karmasura, @kishor_narayan, @KVSarmaJ
Q4. Which blood feeding worm releases an anti-clotting enzyme into blood, causing prolonged bleeding even after the bite?
A: Leech. It releases the anti-clotting enzyme Hirudin to allow the blood to 'flow freely.' This property is sometimes used for the clinical practice of bloodletting: http://articles.latimes.com/2001/aug/06/health/he-31093
Correct answers: @Prashanth_Krish, @kishor_narayan, @Karmasura, @quietist, @kirankarlmarx
Q5. Which substance is referred to as "burning ice"? It has potential as a large scale source of natural gas in the future
A: Methane clathrate or Gas hydrate. It is formed when methane comes into contact with cold water on the ocean floor. It has potential as a large scale source of natural gas in the future. India has huge reserves on the east coast. When it is burned, it really does look like burning ice, like here: http://upload.wikimedia.org/wikipedia/commons/0/03/Burning_hydrate_inlay_US_Office_Naval_Research.jpg
Correct answers: @venkataa, @Karmasura
Scores
@Karmasura 40
@kishor_narayan 40
@KVSarmaJ 30
@Prashanth_Krish 30
@kirankarlmarx 30
@quietist 20
@ssudhirkumar 10
@venkataa 10
@sageisfree 10
@centerofright 10
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