Science For You

[Friendz]

Who discovered DDT ?
Paul Muller
Who discovered the structure of atom ?
Rutherford and Neils Bohr
Who discovered the law of electrolysis ?
Michael Faraday
Who discovered Vitamins ?
Funk and F G Hopkins
Who Discovered Bacteria ?
Leeuwen Hock
Who discovered insulin ?
F G Banting
Who discovered the laughing gas ?
Joseph Priestly
Who postulated Quantum theory ?
Max Planck
Who split the Uranium atom and discovered the possibilities of Chain reaction ?
Otto Hahn
Who discovered Chlorine ?
Carl Wilhem Scheele

[Friendz]

Who is the Father of Periodic table of elements ?
Dmitri Mendeleev
Who propounded the atomic theory ?
John Dalton
Who got the Nobel Prize for manufacturing higher density Polythene ?
Karl Ziegler
Who Invented LCDs ?
James Fergason 1970
Who first gave the concept of atom ?
Kanada
Who first created Chloroform ?
Sir James Young Simpson
Who built the first nuclear atomic pile ?
Enrico Fermi
Who first detected radio wave ?
Henrich Hertz
Which is the first wholly synthetic fibre ?
Nylon
Who first devised to measure the charge on an electron ?
Robert Millikan

[Friendz]

Name the first scientist who developed the cathode ray oscillograph ?
Karl F Braum
Who was the first develop a process to manufacture ammonia on industrial scale ?
Fritz Haber
Which is the first molecule discovered in the space ?
Hydroxide
Who was the first discover radio emission from the sun ?
J S Hay
Which instrument is used for determining elements present in a substance ?
Spectrograph
Which instrument is used to measure volume changes in chemical reaction between gases ?
Endiometer
Which instrument is used to determine the density of a liquid ?
Hydrometer
Which instrument is used to estimate purity of milk
Lactometer
What is metallography ?
The study of the constitution of metals
What is isomorphism?
Close similarity in crystalline forms of compounds

[Friendz]

What is Pandermite ?
Hydrogen Calcium Borate
What is Gun metal ?
An alloy of nine parts of copper with one part of iron
Who built the first electron microscope ?
Max Knoll and Ernst Russka
Who first detected radio waves coming up from space ?
Jack S Killy
Who designed and built the first pedal-powered aircraft ?
Paul Mac Cready
Who first demonstrated the synchronization of moving pictures and sound ?
Thomas E Edison
Who was the first to device the reflecting type of telescope ?
Newton
Who devised the first calculating machine ?
Pascal
Who produced the first alcohol thermometer
Marconi
Who was the first to work out the principles of rocketry ?
Konstantin Tsiolkovsky

[Friendz]

Which is the weather satellite ?
Trios-I
Who invented the polaroid camera ?
E H Land
Who developed the first electric shaver ?
Schick
Who invented the telephone ?
Alexander Graham Bell
Who invented cellophone?
John Larson
Who invented the safety match?
Landstrom
Who is the inventor of the railway engine ?
Richard Trevithik
Who is the inventor of printing press ?
Johaan Guttenberg
Who discovered X-ray ?
W K Roentgen
Who discovered the unit of electrical inductance ?
Joseph Henry

[Friendz]

Who invented the fountain pen ?
Waterman
Who was the inventor of ballpoint pen ?
John J Loud
Who is the inventor of refrigerator ?
James Harrison
Who invented the motor cycle ?
Edward Butler
Who invented the electric bulb ?
Thomas Alva Edison
Who invented the atom bomb ?
Otto Hahn
Who invented the electric fan ?
S Wheeler
Who invented the safety pin ?
Walter Hunt
Who is the inventor of jet aircraft ?
Frank Whittle
Who invented the aeroplane ?
Orville White and Willbur Wright

[Friendz]

Who invented the bicycle tyres ?
John Boyd Dunlop
Who invented the microscope ?
Zacharis Janseen
Who invented balloon ?
Montgolfier
Who invented the telescope ?
Hans Lippershey
Who invented the thermos flask ?
James Dewar
Who invented the knitting machine ?
William Lee
Who invented pressure cooker ?
Denis Pepin
Who invented the revolver ?
Samuel Colt
Who invented television ?
J L Baird
Who is known for the invention of the helicopter ?
Brequet