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General Science Information
Scientific Instruments
| Altimeter
|
Measure the Altitude |
| Ammeter
|
Measure the Current in a circuit |
| Anemometer
|
Measure Wind speed |
| Bolometer
|
Measures heat radiation. |
| Crescograph
|
for measuring the growth in plants |
| Endoscope
|
used to get a deep look inside the body |
| Fathometer
|
Measures the depth of the Ocean. |
| Kymograph
|
Records physiological movements (Blood pressure and Heart beat.) |
| Lactometer
|
Determine Purity of Milk. |
| Manometer
|
Measures the pressure of Gases. |
| Phonograph
|
for producing Sound. |
| Pyrometer
|
Measures very high temperature. |
| Saccharimeter
|
Measures the amount of sugar in the solution. |
| Stereoscope
|
view two dimentional pictures. |
| Stethoscope
|
used to listen to the heart and lungs. |
| Tachometer
|
Measures speeds of aeroplanes and motor boats. |
| Telescope
|
Views distant objects. |
| Theodolite
|
Measures horizontl and vertica angles. |
| Thermomrter
|
Measures temperatures. |
| Viscometer
|
Measures the viscosity of liquids. |
| Voltmeter
|
Measures the potential difference between two points. |
| Sphygmomanometer
|
Measures Blood pressure. |
Unit of Measurement
| Lenght
|
Metre |
| Time
|
Second |
| Energyr
|
Joule |
| Force
|
Newton |
| Pressure
|
Pascal or Newton/sq. metre |
| Frequency
|
Hertz |
| Power
|
Watt |
| Weight
|
Newton or Kilogram |
| Heat
|
Joule |
| Temperature
|
Kelvin |
| Resistance
|
Ohm |
| Electric current
|
Ampere |
| Electric energy
|
Kilo watt hour |
| Magnetic intensity
|
Orsted |
| Charge
|
Coulomb |
| Magnetic induction
|
Gauss |
| Luminous flux
|
Candela |
| Intensity of sound
|
Decibel |
| Volume
|
Cubic metre |
| Power of lens
|
Dioptre |
| Depth of sea
|
Fathom |
Invention and Inventor
| Aeroplane
|
Wright brothers |
| Air conditioning
|
Carrier |
| Artificial Heart
|
Willem Kolff |
| Atomic bomb
|
Robert Oppenheimer |
| Atomic number
|
Moseley |
| Atomic theory
|
Dalton |
| Ball-point pen
|
John J. Loud |
| Bicycle
|
Macmillan |
| Tyre
|
Dunlop |
| Dynamite
|
Alfred Nobel |
| Dynamo
|
Michael Faraday |
| Evalution Theory
|
Charles Darwin |
| Peniciline
|
Alexander Fleming |
| Printing Press
|
xJ. Gutenberg |
| Radium
|
Marie and Pierre Curie |
| Telephone
|
Alexander Graham Bell |
| Television
|
John Logie Baird |
| Thermomrter
|
Daniel Gabriel Fahrenheit |
| X-ray
|
W. Roentgen |
Chemical name of Compounds
| Dry Ice
|
Solid Carbondioxide |
| Quick Lime
|
Calcium Oxide |
| Plaster of Paris
|
Calcium Sulphate |
| Marsh Gas
|
Methane |
| Vinegar
|
Acetic Acid |
| Hypo
|
Sodium Thiosulphate |
| Baking Powder
|
Sodium Bicarbonate |
| Washing Soda
|
Sodium Carbonate |
| Magnesia
|
Magnesium Oxide |
| Chalk
|
Calcium Carbonate |
| Lunar Caustic
|
Silver Nitrate |
| Laughing Gas
|
Nitrious Oxide |
| Chloroform
|
Trichloro Methane |
| Vermelium
|
Mercuric Sulphide |
| Borax
|
Borax |
| Alcohol
|
Ethyl Alcohol |
| Heavy Water
|
Duterium Oxide |
| Sugar
|
Sucrose |
| T.N.T
|
Tri Nitrotoluene |
| Sand
|
Silicon Oxide |
| Bleaching Powder
|
Calcium Oxychloride |
Ores of Metals
| Aluminium
|
Bauxite, Corundum |
| Iron
|
Haematite, Magnetite, Lemonite, Siderite |
| Gold
|
Calaverite, Silvenites |
| Mercury
|
cinnabar |
| Tin
|
Cassiterite |
| Zinc
|
sphalerite (zinc blende) |
Alloys
| Brass
|
Cu, Zn |
| Bronze
|
Cu, Sn |
| German Silver
|
Cu, Zn, Ni |
| Magnelium
|
Mg, Al |
| Rolled Gold
|
Cu, Ni |
| Monel metal
|
Cu, Ni |
| Bell metal
|
Cu, Sn |
| Gun metal
|
Cu, Zn, Sn |
| Solder
|
Sn, Pb |
| Duralium
|
Al, Cu, Mg, Mn |
| Steel
|
Fe, C |
| Stainless Steel
|
Fe, Cr, Ni |
Facts of Human Body
| Longest bone
|
Femur ( Thigh bone ) |
| Smallest bone
|
Stapes ( Ear ossicle ) |
| Normal Blood Pressure
|
120/80 mm Hg |
| Life span of RBC
|
120 days |
| Life span of WBC
|
3-4 days |
| Haemoglobin
|
In Male: 14-15.6 gm/150 cc of blood |
|
|
In Female: 11-14 gm/150 cc of blood |
| Universal Blood doner
|
O Rh -ve |
| Universal Blood recipient
|
AB |
| Blood clotting time
|
2-5 minutes |
| Normal body temperature
|
98°.4 F or 37° C |
| Breathing rate
|
16-20/minute |
| Dental formula
|
Adult: 2123/2123 = 32, Child: 2120/2120 = 22 milk teeth |
| No. of Cranial Nerves
|
12 pairs |
| No. of Spinal Nerves
|
31 pairs |
| Largest endocrine gland
|
Thyroid |
| Normal Heart beat
|
72-75/minute |
| Largest Gland
|
Liver |
| Largest muscle in the body
|
Gluteus maximus (Buttock muscle) |
| Smallest muscle in the body
|
Stapedius ( Ear muscle ) |
| Longest nerve
|
Sciatic |
| Longest Cell
|
Neuron |
| No. of Muscles
|
639 |
| No. of Bones
|
206 |
| Largest organ of human body
|
Skin |
Vitamins & Minerals
| B1 (Thiamine)
|
Beri-beri |
| B2 (Riboflavin)
|
Cheilosis |
| B3 (Niacin)
|
Pellagra |
| B6 (Pyridoxine)
|
Anaemia |
| B5 (Pantothenic acid)
|
Dermatitis |
| B7 (Biotin)
|
Paralysis |
| Folic Acid
|
Anaemia |
| B12 (Cyanocobalamine)
|
Anaemia |
| Vit. C (Ascorbic acid)
|
Scurvy |
| Vit. A (Retinol)
|
Night blindness, Xerophthalmia |
| Vit. D (Cholecalcifero)
|
Rickets, Osteomalacia |
| Vit. E (Tocopherol)
|
Fertility problem |
| Vit. K (Phylloquinone)
|
Haemorrhages |