Science For You

[Perfection]

Which salt is called sugar of lead ?
Lead acetate

Sapphire and Ruby are two impure forms of which mineral ?
Corundum (Aluminium oxide)

What is Armacolite ?
A mineral found on moon, not seen on earth

What is a suspension of lime in water called ?
Milk of lime

Which is the most malleable of all metals ?
Gold

Cinnabar is the ore of ...?
Mercury

What is pinchbeck ?
It is an alloy used as imitation gold

What are the components of pinchbeck ?
Copper and Zinc

Tincal is a mineral which contains neither tin nor calcium. Then what is it chemically ?
It is an impure form of Borax

[Perfection]

Inventions and Discoveries

Aeroplane - Orville & Wilbur Wright (1903)
Air Conditioning - Carrier (1902)
Airplane (jet engine) - Ohani (1939)
Ball point pen - John J Loud (1888)
Battery - Alessandro Volta (1800)
Bicycle - K Macmillan (1839)
Bifocal lens - Benjamin Franklin (1780)
Bleaching powder - Tennant (1798)
Car (Petrol) - Karl Benz (1888)
Carburettor - Gottlieb Daimler (1780)

Cement (Portland) - Joseph Aspdin (1824)
Computer (Laptop) - Sinclair (1987)
Diesel engine - Rudolf Diesel (1895)
DNA structure - Watson & Crick (1951)
Electric Iron - HW Seeley (1882)
Electric lamp - Thomas Alva Edison (1879)
Electric motor (AC) - Nikola Tesla (1888)
Escalator - GH Wheeler & JW Reno (1894)
Fire Extinguisher - George Manby (1816)
Frequency Modulation - EH Armstrong (1933)

[Perfection]

Fountain Pen - Lewis E Waterman (1884)
Jet Engine - Sir Frank Whittle (1937)
Lift (Mechanical) - Elisha G Otis (1852)
Match, Safety - John Walker (1826)
Microphone - A Graham Bell (1876)
Microscope, compound - Z Janssen (1590)
Motor cycle - G Daimler (1885)
Neon Lamp - Georges Claude (1910)
Neutron - Chadwick (1932)
Pacemaker - Zoll (1952)

Periodic Table - Mendeleyev (1869)
Piano - Cristofori (1709)
Pistol (Revolver) - Colt (1836)
Postage stamp - Sir Rowland Hill (1840)
Radio telegraphy - G Marconi (1901)
Relative theory - Albert Einstein (1905)
Rubber (Tyre) - Thomas Hancock (1846)
Safety pin - Walter Hunt (1849)
Seat belt - Volvo (1959)
Stethoscope - Laennec (1819)

Swiss army Knife - Karl Elsener (1891)
Tank - Sir Ernest D Swington (1914)
Television, color - John Logie Baird (1928)
Uranium reactor - Fermi (1942)
X ray - Wilhem K Roentgen (1895)

[rameshxavier]

This year, 2009, is significant as far as Science is concerned, because during this year coincide the anniversaries of several incidences which helped the onward march of Modern Science.

It is the 200th birth anniversary of the great personality, Charles Darwin, who gave light into the origin of living organisms on the earth; 150th year of publication of his famous book on the theory of evolution, “Origin of Species”; 400th year of the celestial observations using Telescope for the first time by Galileo Galilee, 100th birth anniversary of the great Indian Scientist, Homi J. Bhabha, who initiated the Atomic Energy Programme as well as the Space Research Programme in India.

The people’s science movement working in Kerala (Kerala Sastra Sahitya Parishad) is celebrating 2009 as the ‘Year of Science’, conducting thousands of Science Classes.

UNESCO and the International Astronomical Union (IAU) launched 2009 as the International Year of Astronomy under the theme "The Universe, Yours to Discover"