Wednesday, January 30, 2013

વિજ્ઞાનજગત

1. Bismuth was discovered by Valentine
2. The biggest plant seed is Cocodemer
3. Toxicology is the study of Poisons
4. Virology is the study of Viruses
5. Paleontology is the study of Fossils
6. Calorimeter is used to measure Quantity of heat
7. Chronometer was invented by John Harrison
8. Stethoscope was invented by William Stockes
9. Spinning frame was invented by Sir Richard Arkwright
10. Al stands for Aluminium
11. Gd stands for Gadolinium
12. Ir stands for Iridium
13. Bi stands for Bismuth
14. The Chemical formula of sodium bicarbonate is NaHCO3
15. The chemical formula of common salt is Nacl
16. The chemical formula of washing soda is Na2CO3,IOH2O
17. The chemical formula of lime soda is CaCO3
18. The chemical formula of chloroform is CHcl3
19. The study of grasses is known as Agrostology
20. The study of antiquities is known as Archaeology
21. The study of the duration of life is known as Chronobiology
22. The study of bacteria is known as Bacteriology
23. Nylon was invented by Dr.Wallace H.Carothers
24. Electric razor was invented by Jacob Schick
25. The symbol of silver is Ag
26. The symbol of silicon is Si
27. The symbol of titanium is Ti
28. Calcium oxide is commonly known as Quick lime
29. A deviation of light passing from one medium to another is known as Refraction
30. An apparatus for generation of atomic energy is called a Reactor
31. A machine used for converting mechanical energy into electrical energy is called a Generator
32. The first Indian woman in space was Kalpana Chawla
33. The revolver was invented by Samuel Colt
34. The refrigerator was invented by J.Perkins
35. Which is the only common metal that is liquid at room temperature? Mercury

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