Each year in America, from 6:02 AM to 6:02 PM on 10/23, "It" is celebrated by chemists, mathematicians and physicists. The day is part of National chemistry week, observed annually from the Sunday through Saturday in October in which the 23rd falls. What day ?

INQUISITIVE by Barry O’Brien

Here are some of the questions from the prelims of INQUISITIVE -

1. How many nanometers make one-billionth of a meter ?
2. In relation to astronomy, what is K.B.O. ?
3. What is called the fear of numbers ?
4. What is the colour of elemental Cobalt ?
5. Of what material is the piston of an aeroplane made of ?
6. In relation to heat, what is C.I. and I.C. ?
7. Name the architect or the company which constructed the Bird's Nest ?
8. Identify this instrument-


9. Identify this instrument-


10. It lies at approximately 81.3° North latitude and 110.8° West longitude near Ellesmere Island in CANADA. What is being talked about here ?
11. Of what material is the piston of an aeroplane made of ?
12. Identify the product-

13. On 28 November, 1968, people from 124 UN nations brought with them some soil from their homeland, to be mixed in a white marble- clad, lotus-shaped urn to give rise to an architectural wonder. Name it.
14. Identify this picture-