Answers 19th Nov 2010

Here are the answers for the quiz on 19th Nov 2010:

Q1. Which Indian ruler used rocket artillery in war (for the first time in India) against the British?

A: Tipu Sultan. He was the first to use the modern design – the iron cylinder rocket.

Correct answers: @Prashanth_Krish, @centerofright, @kashyapa, @Ashvala, @IamPrabhath, @Karmasura, @kirankarlmarx

Q2. What is the most abundant organic compound on Earth?


A: Cellulose. It is easy to see why it is the most abundant. It forms 33% of all plant matter http://en.wikipedia.org/wiki/Cellulose

Correct answers: @Prashanth_Krish, @centerofright, @Karmasura

Q3. What force causes winds and projectiles in the atmosphere to become deflected from a straight path?

A: Coriolis force. If you fire a rocket from Hyderabad aimed at Nagpur, it would fall somewhere to the east of Nagpur. Projectiles/winds deflect towards the right in the northern hemisphere and towards the left in the southern hemisphere. The Coriolis force is caused by the earth's rotation.
http://www.windows2universe.org/physical_science/physics/mechanics/Coriolis.html
http://www.geography4kids.com/files/atm_coriolis.html

Correct answers: @Prashanth_Krish, @kirankarlmarx

Q4. Who theorized that there were canals on Mars built by a dying civilization? His efforts also led to discovery of Pluto


A: Percival Lowell. His theory was proved wrong when Viking – the first probe to Mars – returned pictures of a planet sized desert. He founded the Lowell Observatory, where Clyde Tombaugh discovered Pluto in 1930.

Correct answers: @Prashanth_Krish,

Q5. The Internet owes its origin to which network, created by USA's Defence Advanced Research Projects Agency (DARPA) and MIT?

A: The ARPANET (Advanced Research Projects Agency Network). It used for the first time technologies that would become the basis of the Internet, like packet switching. The ARPANET is considered one of the "eve" networks of today's Internet.

Correct answers: @Prashanth_Krish

Scores

@Prashanth_Krish 50
@centerofright 20
@Karmasura 20
@kirankarlmarx 20
@kashyapa 10
@Ashvala 10
@IamPrabhath 10