SCIENTISTS, THEIR INVENTIONS AND DISCOVERIES
Q.1. What had Andre Marie Amperer invented?

Q.2. Can u enumirate some achievements of Archimedian?

Q.3. Who had invented spinning frame?

Q.4. What was Baird's achievement?

Q.5. Who has discovered gun powder, air pump, magnifying glass and spectacles?

Q.6. What Graham Bell had invented?

Q.7. Can u name Berliner's invention?

Q.8. Who had invented Bunsen's Burner?

Q.9. Name two inventions of cartwright?

Q.10. Who had discovered revolver?

Q.11. Who did discover atomic theory?

Q.12. Who had invented Miner's Safety Lamp?
(continue)

I would advise you to refer to Answers.com for the detailed answer of the queries,
as far as my knowledge goes, i only know that Graham Bell was the person who invented Telephone and from a movie's reference i know that Benjamin Franklin was the one who discovered spectacles!.
The remaining answers can be dug out from the website i mentioned above!.

__________________
نہ تیرا پاکستان ہے , نہ میرا پاکستان ہے , یہ اس کاپاکستان ہے , جو صدرپاکستان ہے

Spinning frame:

Richard Arkwright in 1768

Baird's achievement:

John Logie Baird first publicly demonstrated television on 26 January 1926

Berliner's invention:
Emile Berliner invented the gramophone.He also improved Edison's
telephone by introducing a microphone.

Samuel Colt invented the first revolver.

Atomic theory:
John Dalton.

ASALAM_U_ALAEEKUM ALL RESPECTED MEMBERS
Here i go
Q#1"-astatic needle which is used in galvanometer
Q#2:-Archimedes was a native of Syracuse, Sicily. It is reported by some authors that he visited Egypt and there invented a device now known as Archimedes' screw. This is a pump, still used in many parts of the world
The achievements of Archimedes are quite outstanding. He is considered by most historians of mathematics as one of the greatest mathematicians of all time. He perfected a method of integration which allowed him to find areas, volumes and surface areas of many bodies.
Q#3:- Richard Arkwright invented the spinning frame or water frame
Q#4Achievement. John Logie Baird is remembered as the inventor of mechanical television
Q#5 GUN POWDER: - ... The monk Berthold Schwarz discovered gunpowder in the 14th century.
AIR PUMP:- mayor of Magdeburg, in 1650 invented the air pump
Q#6 TELEPHONE
Q#7 GRAMOPHONE
Q#8:- Robert Bunsen
Q#9:- power loom and wheel combing machinery
Q#10:- SAMUEL COLT
Q#11:-jhon Dalton
Q#12:- Sir Humphry Davy

Plz pray for me

here are three more questions:

what is the temprature of a dead body.
who discovered water.
what ist he name of a mammal that does not drink water.