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Science Quiz -Important Scientific Terms,Branches of Science etc

admin — Tue, 17 May 2011 17:26:36 +0000

Absolute Zero—On the temperature scale is the lowest temperature theoretically possible. The theoretical point is equivalent to— 459•6ºF or—273•16º at which all molecular motion stops.

Acupuncture—It is an ancient technique, very much in vogue in China, of deadening pain. It is claimed that by the use of acupuncture major surgical operations can be performed without anaesthesia. The underlying principle is that there are several points in the body at which if needles are struck, a numbing effect is produced.

Allometry—It denotes the relationship between the growth rates of an individual plant part/or an organ/or organism.

Allotropy—Existence of a chemical element in two or more forms differing in physical properties but giving rise to identical chemical compounds.

Allelopathy—Also known as antibiosis of allelochemical interaction, which has direct or indirect inhibitory influence of one plant species or others and V/s.

Anabolism—Building up of complex substances from simple ones in living tissues. It is a part of the process of metabolism.

Anaesthetics—Drugs causing unconsciousness such as chloroform.

Antibiotics—These are the drugs which are produced by bacteria and which act against other strains of bacteria e.g. Penicillin, Streptomycin, Teramycin, Chloromycetin etc.

Astigmatism—It is an aberration of an optical system that causes lines in some directions to be focussed less sharply than lines in other directions. To the eye it causes defective vision.

Atomic Energy—It is produced due to the splitting up of atoms of certain radio-active elements. The energy produced in this manner can be used for constructive or destructive purposes.

Atomic number—The number of electrons, or what is equivalent, the positive charge on the nucleus, of an atom.

Black box—It is an apparatus which records the flight data of an aeroplane and is also a voice recorder.

Bacteria—Are minute organisms appearing under a microscopic observation as a group of rods or spheres. Some are harmful bacteria for they help in the spread of disease, some are useful for making soil fertile.

Bioeco compass—A unique device developed by Timiryazev Agricultural Academy in Moscow, which can give reliable forewarning of natural calamities like floods and droughts.

Blood group—Dr. Costello and later Dr. Moss classified blood into various groups viz. AB, A and O according to the viscosity of blood. Patients are administered blood of their own group.

Blood Transfusion—This is process of transfusing blood of one person into the blood stream of another person.

Calorie—The amount of heat needed to raise the temperature of 1 gram of water through 1ºC.

Centripetal Force—The force which tends to pull whirling objects towards the centre of rotation.

Centrifugal Force—The force with which a body revolving round the centre tends to fly off.

Catalyst—A substance which aids or speeds up a chemical process, without itself undergoing any change.

Chemotherapy—Treatment of diseases by means of a chemical compound having a specific bactericidal effect.

Chlorophyll—The green pigment contained in the leaves of plants. It enables the plants to manufacture food with the help of sun light. It was first discovered by P.J. Pelletier (1778-1892) and J.B. Caventon (1715-1887) in 1818.

Colour Blindness—It is an inborn condition in some people of not being able to distinguish between certain colours.

Deficiency diseases—These are the diseases which are caused due to the deficiency in the body of certain vitamins.

Dialysis—It is a machine used for blood purification when the kidneys malfunction. The process is also known as dialysis.

Dry Ice—It is solid carbon dioxide.

Efflorescence—The property possessed by certain crystalline substances of losing their water of crystallization when exposed to the air and becoming amorphous. Example—washing soda.

Electric Motor—It is a device to transform electrical energy into mechanical energy.

Electrolysis—It is the passage of an electric current through an electrolyte with subsequent migration of ions to the electrodes.

Ecology—It is the study of the balance of nature, how different living beings and inanimate objects function together as a harmonious whole.

Endemic—A disease which becomes prevalent in a particular area on account of its sorrounding conditions.

Enzymes—These are organic catalysts which actually accelerate the chemical reactions occurring in the living organism. For example lipase accelerates the hydrolysis of fats; diastase helps the conversion of starch to glucose; zymase quickens fermentation of sugar to alcohol.

Epidemic—A disease which attacks many people in a particular area at one time.

Escape Velocity—It is the minimum speed which a space craft must have to escape the earth’s “Gravitational Pull”. It is 11•2 km/sec. from the earth.

Exbiology—The new science which deals with life or possibilities of life existing beyond the earth i.e. on other planets.

Fossils—The remains or forms of a plant or animal which are found deposited at a particular place over a long period of time in the form of rocks.

Flyash—A waste product from thermal power stations using coal. The strategic metal., germanium can be extracted from flyash.

Fungi—A class of plants which have no chlorophyll.

Gene—An elementary unit of heredity. It occurs along the length of the chromosomes which surround the nuclei.

Genetic Code—The code of life by which inherited characteristics are handed down from one generation to another. The code bearing material is…D.N.A. (deoxyribonucleic acid) a biological matter which makes transmission of characteristics possible.

Green House (Glass House)—Heating influence by solar radiation reaching ground surface, allowed by CO₂, ozone, dust, water, vapours, atmosphere etc.

Haemoglobin—The red pigment present in the blood functioning as an oxygen carrier.

Hibernation—Condition of sleep during certain parts of the year.

Hormones—These are chemical substances produced by ductless or endocrine glands.

Heavy water—The usual chemical formula for water is H₂O.

This signifies that two atoms of hydrogen are linked with one atom of oxygen to form one molecule of water. The formula for heavy water is D₂O.

Hydrophobia—It is usually caused by the bite of a mad dog. It is an incurable disease. Once it develops, the patient dies of it. It can be prevented by injections discovered by Pasteur. Injections are known as ARV (Anti-rabic venom).

Hydroponics—It is the process of growing plants by feeding them on nutrients without using soil.

Implosion—It is a technique for detonating underground nuclear devices.

Ionisation—It is the process of splitting up of a molecule into ions.

Iron Lung—A mechanical device consisting of a chamber in which alternate pulsations of high and low pressure of the thorax of a patient produce normal lung movements. It is used in cases in which respiration muscles are paralysed, e.g. in poliomylitis.

Isotopes—Atoms of the same element with the same atomic number but with different atomic mass number are known as Isotopes of that element. They contain different number of neutrons.

Kinetic energy—It is the energy possessed by the body by virtue of its motion.

Laser Beam—‘Laser’ is the abbreviated form of ‘Light, Amplification, by Stimulated Emission of Radiation’. It is a device for producing concentrated, powerful monochromatic and coherent beam of light. It is used in medicine, warfare etc.

Light Year—An astronomical measure of distance; the distance travelled by light in vacuum in one year. The velocity of light is, 3 x 10⁸ m/s (1 light year = 9•46 x 1015 m)

Meson—A new particle which holds the protons and neutrons of the atomic nucleus discovered by a Japanese scientistYukawa.

Metabolism—It is a chemical process concerned with the burning and regeneration of tissues occurring in living organisms.

Myopia—Short-sightedness. A myopic man cannot see distant objects clearly while he can see near objects quite clearly.

Nitrogen Fixation—Nitrogen has the property of reacting under special conditions to form a number of useful products. Owing to this property the free atmospheric nitrogen is converted into so many nitrogenous compounds.

Neutralization—Addition of acid to alkali or vice-versa, so that the solution is neutralized, the properties of the compounds disappear.

Neutron Bomb—Developed by the United States, the bomb causes negligible damage to buildings and other installations, but kills people instantly through radiation.

Nuclear Fission—It is the process of breaking apart of the nucleus of an atom.

Nuclear Fuel—It is a substance which undergoes nuclear fission in a nuclear reactor.

Osmosis—In the process of a solution being separated from its pure solvent by a semi-porous membrane, the molecules of the solvent begin to travel across the membrane and reach the solution to dilute it. The process goes on till concentration is equal on both sides of the membrane. This phenomenon is known as Osmosis.

Outer space—The part of the universe which lies beyond the earth’s atmosphere where the density of matter is very low.

Oxidation—It is a process of addition of oxygen.

Photosynthesis—It is the process by which green plants manufacture food in the form of carbohydrates in the presence of sunlight.

Polymerization—Chemical union of two or more molecules of the same compound to form larger molecules. The process results in the formation of a new compound of the same empirical formula but greater molecular weight.

Potential energy—It is the energy possessed by the body by virtue of its position or shape.

Protoplasm—It is the living matter present in the cells of animal and vegetable life.

Psychedelic drugs—These are the drugs which produce a mental state of great calm.

Radiation—The process of transmission of heat in straight lines without heating the intervening medium.

Radio activity—It is a characteristic of substances like uranium, thorium, radium and actinium to emit radiation which can penetrate opaque substances, affect a photographic plate in the dark and ionize gases etc.

Refraction—When a ray of light enters from a rare medium to a denser medium, it is bent or refracted towards the normal. Mirage is formed by refraction.

Relativity theory—Theory associated with Albert Einstein based on the principle that all motions are relative and that time and space are mutually inseparable.

Rocket—A type of vehicle driven by the engine which does not depend upon air as medium. It is therefore capable of working in outer space.

‘RRR’ Bomb—The U.S. Government has begun secret exploratory research on a new nuclear ‘fast bomb’ known as RRR bomb (Reduced Residual Radiation bomb) for the military, that would produce increased heat and blast but reduced radio-active fall out.

Specific gravity—Relative weight of any kind of matter expressed by the ratio of given volume to the same volume of water (for liquid or solid matter) and of air (for gas).

Spectrum—When a narrow beam of light passes through a prism, it disperses into seven colours. The coloured image is known as spectrum.

Sterilisation—(a) Removing the power of procreation by means of operation, (b) disinfecting instruments and other materials before performing a surgical operation.

Telex—Means Teleprinter Exchange. It enables subscribers to have their own teleprinter communication direct with any other subscriber having the same facility.

T.N.T.—Tri-nitro-toluene, highly explosive substance. It is manufactured by the action of concentrated nitric acid on toluene.

Torricellian Vacuum—The vacant space above the level of mercury in the barometer is known as Torricellian Vacuum. It is so called because of its being discovered by Torricelli.

Ultra Violet Rays—The sunlight is composed of several colour such as red, orange, yellow, green, blue, indigo and violet. In the spectrum below this colour there exist other rays known as ultra violet rays. These rays possess a short wave length but high frequency.

Ultra sonic—It means frequency in excess of about 20‚000 cycles per second.

Virus—Small microscopic agents containing nucleic acid capable of multiplying in an organism and causing many types of diseases such as plague, small-pox, mumps, measles, typhus, Poliomytatin etc.

Vitamins—These are minute organic compounds present in food products and are important for maintenance of health. Deficiency of these in food causes deficiency diseases. The most important vitamins are five in number; A, B, C, D and E.

Xerography—It is a new process of graphic reproduction and photography recently developed in India by National Physical Laboratory, New Delhi.

Science Quiz-Quiz based on Physics

admin — Sun, 20 Feb 2011 15:06:02 +0000

1. If one looks into a mirror and finds the image larger than normal, one conclude that the mirror is
a. Convex
b. Concave

Answer : B

2. Microwave frequency band is

a. 1-100 MHz
b. 100-1000 KHz
d. Above 1000MHz

Answer : D

3.The units of Length, Mass and Time are called

Answer : Fundamental units

4.Fathom is the unit for measuring

Answer : Depth of water

5. The fourth state of matter is

Answer : Plasma

6.Raman effect involves

Answer : Scattering of light

7. A red object, when seen through a thick blue glass, appears

Answer : Black

8.Hydro-Power is the term used for electricity produced through

Answer : Water

9. What is the nature of the item stored in a domestic cooking gas cylinder

a. Gas
b. Semisolid
d. Liquid

Answer : D

10. The heating element of an electric iron is made of

Answer : Nichrome

11. What is the working principle of a transformer

Answer : Electro magnetic induction

12. A capacitor used in electric circuit is to step up

Answer : Electric charge

13. Temperature of water used in hot water bag is in the range

Answer : 120 / 1490 F

14. Photosynthesis is maximum in
a. Green light
b. Blue light
d. Red light

Answer : D

15.The strongest force of nature is
a. Nuclear force
b. Gravitational force
d. Electrostatic force

Answer : B

16. Speed of light in a vacuum is

Answer : 299,792.458 km/sec

17. No current will flow between two charged bodies if they have the same
a. Potential
b. Resistance
d. Charge

Answer : A

18. The fuse wire in the main switch is of
a. Zero rating of current
b. The same rating as that o individual sections
d. A lesser rating than for individual sections

Answer : C

19. Acoustics is the study of

Answer : Sound

20. Rocket engine works on the principle of

: Newton’s third law

What is Avionics?

admin — Mon, 26 Jul 2010 03:15:22 +0000

Avionics Related to the the electronic instrumentation and control equipment used in airplanes and space vehicles.

Avionics (ā’vēŏn‘ĭks), electronic instruments used in air or space flight; also the design and production of such instruments. Early planes had few instruments, but as aviation and aircraft became more complex, so did instrumentation. Most of the new technology was electronic; hence, the expression “aviation electronics” arose and was later shortened to “avionics.” After World War II, the increasing sophistication of military avionics helped spawn a proliferation of electronic applications to commercial and private aviation. Avionics includes numerous types of devices, including those used for navigation control instruments that aid in steering and controlling the craft; and performance indicators, such as altimeters and velocity gauges.

Major SCIENTIFIC LAWS

admin — Sat, 26 Jun 2010 09:24:20 +0000

Archimedes’ Principle: It states that a body, when immersed in a liquid, experiences an upward thrust equal to the weight of the liquid displaced by it.

Avogadro’s Hypothesis: It is a modification of Berzelius’ hypothesis. It states that equal volumes of all gases under similar conditions of temperature and pressure contain equal number of molecules. Avogadro’s law is applicable only to gases.

Boyle’s Law: states that the volume of certain gas is inversely proportional to the pressure at a constant temperature. In other words the product of pressure and volume remains constant provided the temperature is kept constant i.e., P x V = a constant if T remains the same.

Charles’s Law: It states that at constant pressure all gases expand by 1/273 of their volume at 0°C for a rise in temperature of 1°C i.e., the volume of a given mass of gas at constant pressure is directly proportional to the absolute temperature.

Dulong and Petit’s Law: states that the product of atomic weight and specific heat of solid elements is nearly equal to 6.4 i.e., At wt. x sp. heat = 6.4 approx.

Gay-Lussac’s Law of combining volumes: Gases react together in volumes which bear simple whole number ratios to one another and also to the volumes of the products, if gaseous—all the volumes being measured under similar conditions of temperature and pressure.

Graham’s Law of Diffusion: states that the rates of diffusion of gases are inversely proportional to the square roots of their densities under similar conditions of temperature and pressure.

Kepler’s Law: According to this law, a line drawn from the sun to a planet, moving around it, sweeps over a fixed area in a given interval of time.

Law of definite proportions: A chemical compound is always found to be made up of the same elements combined together in the same ratio by weight.

Law of Floatation: for a body to float, the following conditions must be fulfilled: (1) The weight of the body should be equal to the weight of the water displaced. (2) The centre of gravity of the body and that of the liquid displaced should be in the same straight line.

Lenz’s Law: When there is change in the magnetic flux linked with a circuit, the electric current induced in the circuit will have a magnetic field opposing the change producing it.

Newton’s Law of Universal Gravitation: states that “Every portion of matter attracts or tends to approach every other portion of matter in the universe with a force proportional to the masses and inversely as the square of the distance.”

Newton’s First Law of Motion: “A body continues in its state of rest or of uniform motion in a straight line unless compelled by an external force to change that state.”

Newton’s Second Law of Motion: “The rate of change of momentum is proportional to the impressed force and takes place in the direction of the force.”

Newton’s Third Law of Motion: “To every action, there is an equal and opposite reaction.”
Newton’s Law of Cooling: states that the rate of loss of heat of a hot body is directly proportional to the difference of temperature between the body and the surroundings and is independent of the nature of the body.

Ohm’s Law: states that the ratio of the potential difference between the ends of a conductor and the current flowing in the conductor is constant, e.g., for a potential difference of E volts and a current I amperes, the resistance R, in ohms is equal to E/I.

Principle of conservation of energy: It states that, in any system, energy cannot be created or destroyed; the sum of mass and energy remains constant.

Snell’s Law: It states that the ratio of the sine of angle of incidence to the sine of the angle of refraction remains constant for any two given media.

Specific heat of substance: The quantity of heat required to raise the temperature of 1 gram. of a substance through 1°C.

Nano and Nanotechnology

admin — Wed, 12 May 2010 05:06:11 +0000

Nano is actually a SI prefix denoting 0.000 000 001, and for instance one nano-meter means one billionth of a meter. Obviously nano is referring to the fields dealing with such small scales (roughly 1–100 nm). It should be emphasized that ‘nano’ as a field of study, deals with size; and nano scale of e.g. time, concentration, etc are not normally considered as the nano discipline (the reason is given below).

Nanotechnology describes the creation and utilisation of functional materials, devices and systems with novel functions and properties that are based either on geometrical size or on material-specific peculiarities of nano-structures. Purely geometrically the prefix “nano” (greek: dwarf) describes a scale 1000 times smaller than that of present elements of the micrometer-sphere (1nm corresponds to the millionth part of a mm). This scale has become accessible both by application of new physical instruments and procedures and by further diminution of present microsystems. Also structures of animated and non-animated nature were used as models for self-organising matter. Only if the mastery of this atomic and molecular dimension succeeds, the prerequisites for the optimisation of product properties within socioeconomic areas such as energy engineering, environmental technology as well as in information technology, health and ageing can be developed.

Vyomnauts and ISRO

admin — Mon, 01 Mar 2010 16:43:01 +0000

What are Vyomnauts?
India’s First space mission is scheduled for 2015. In this mission three-person vehicle will initially carry two astronauts into 275-kilometre low-Earth orbit.
The ISRO is in process of choosing four astronauts from a pool of 200 fighter pilots. the media has coined a new term for Indian astronauts – Vyomnauts.
Vyoma is space. The correct sanskrit term is Vyomagami yet

Science GK 2

admin — Tue, 03 Feb 2009 04:07:27 +0000

GREEN PIGMENT IN PLANT LEAF CHLOROPHYL

ALZHEIMER DAY OBSERVED IN SEPTEMBER 21

ASTRONOMICAL MEASURE OF DISTANCE LIGHT YEAR

NATURE AND PROPERTIES OF LIGHT OPTICS

POMOLOGY IS THE STUDY OF FRUITS

“”"MEGA BYTES”" IS THE UNIT FOR MEASURING” MEMORY
CAPACITY OF COMPUTER

MILK PROTEIN IS KNOWN AS CAESIN

DIALYSIS IS USED FOR PATIENTS HAVING KIDNEY TROUBLE
ONCOLOGY IS THE STUDY OF CANCER

ANALGESICS ARE USED TO RELIEVE PAIN

PLANTS ARE GREEN BECAUSE OF CHLOROPHYLL

WHEN IRON RUSTS, ITS WEIGHT INCREASES

INSULIN IS USED IN THE TREATMENT OF DIABETES

THE METAL IN THE LIQUID STATE MERCURY

THE SYSTEM OF MODERN MEDICINE BY HIPPOCRATES

CRYOGENIC ENGINES FIND APPLICATION IN ROCKET TECHNOLOGY
GOBAR GAS IS RICH IN METHANE

THE CHEMICAL NAME OF VITAMIN C ASCORBIC ACID

INSTRUMENT USED TO TEST PURITY OF MILK LACTOMETER

RICHTER SCALE IS USED TO MEASURE INTENSITY OF EARTHQUAKES

LARGEST PLANET IN THE SOLAR SYSTEM JUPITER

WHICH IS THE HARDEST DIAMOND

DENGUE FEVER IS SPREAD BY AEDES AEGYPTI MOSQUITOES

THE BHATNAGAR AWARD IS GIVEN FOR SCIENCE AND TECHNOLOGY

TAPE RECORDER RECORDS SOUND AS MAGNETIC ENERGY

NUMBER OF CHROMOSOMES IN HUMAN CELL 46

“THE MEANING OF “”FAUNA”"” THE ANIMAL LIFE OF A REGION

WHICH IS RAMANUJANS NUMBER 1729

RED PLANET MARS

FEAR OF DARKNESS NYCTOPHOBIA

GEOMETRIC FIGURE HAVING SIX SIDES HEXAGON

KILLING OF ONES CLOSE RELATIVE PARRICIDE

THE HEATING ELEMENT IN AN IRON BOX IS MADE OF NICHROME

“WHAT IS “”DERMATOLOGY”"” STUDY OF HUMAN SKIN AND ITS
DISEASES

BEST CONDUCTOR OF ELECTRICITY SALINE WATER

FOR EXTINGUISHING FIRE WE USE CARBON DIOXIDE

FIRST CLONED MAMMAL DOLLY

FIRST ATTOM BOMB LITTLE BOY

GREENWICH IS IN ENGLAND

WORLDS FIRST CLONED DOG SNUPPY

NATIONAL TECHNOLOGY DAY IS OBSERVED ON MAY 11

WORLD ENVIRONMENT DAY JUNE 5

OBSCURING OF ONE CELESTIAL BODY BY ANOTHER ECLIPSE

EXPOSURE TO ASBESTOS LEADS TO ASBESTOSIS

SUPER COMPUTER OF INDIA PARAM PADMA

HOTMAIL SABEER BHATIA

WORLD WIDE WEB TIM BERNESLI

PENCILLIN ALEXANDER FLEMING

FIRST ATOMIC EXPLOSION WAS CONDUCTED AT NEW MEXICO

THE AIR IN THE TROPOSPHERE CONSISTS OF 78% NITROGEN

OXYGEN WAS DISCOVERED BY JOSEPH PRIESTLEY && SCHEELE

MICROORGANISMS CAPABLE OF NITROGEN FIXATION ARE RHIZOBIUM

THE LARGEST FLOWER IN THE WORLD RAFFLESIA

THE LONGEST AND STRONGEST BONE OF THE BODY FEMUR

BLOOD VESSELS CARRY BLOOD AWAY FROM THE HEART ARTERIES
WHO DISCOVERED THE CIRCULATION OF THE BLOOD WILLIAM HARVEY

INABILITY OF BLOOD TO CLOT, OR COAGULATE HEMOPHILIA

SMALLPOX VACCINATION Edward Jenner

VITAMIN B2 IS ALSO CALLED Riboflavin

“”" VITAMIN B1″” IS ALSO KNOWN AS” THIAMINE

THE WATER-SOLUBLE VITAMIN VITAMIN C

COMPONENT OF THE RED BLOOD CELLS ,CARRY OXYGEN
HEMOGLOBIN
ADULT HUMANS TYPICALLY HAVE 32 Teeth

FLYING MAMMAL Bat

LAUGHING GAS NITROUS OXIDE

EGG LAYING MAMMAL IS Platipus

“WHEN WAS THE SATELITE “”EDUSAT”" WAS SENT” 2004

UNLIKE MOST OTHER FISH, SHARKS HAVE NO BONE

THE METAL MERCURY: Is a liquid at room temperature

WHEN WAS PLYWOOD INVENTED 3500 BC

“”"MISCH METAL”" IS WIDELY USED IN THE MANUFACTURE OF” Cigarette lighters

Science GK 1

admin — Tue, 03 Feb 2009 04:05:26 +0000

NORMAL BODY TEMPERATURE 98.4F

“BLOOD GROUP CALLED “”UNIVERSAL DONOR “”" O GROUP

“BLOOD GROUP CALLED “”UNIVERSAL RECIPIENT “”" AB GROUP

CIRCULATORY SYSTEM’S POWER SUPPLY HEART

ORGAN REMOVES WASTES AND EXCESS WATER FROM THE BLOOD KIDNEY

STUDY OF TWINS GEMELLOLOGY

NATIONAL SCIENCE DAY FEBRUARY 28

SIGNIFICANCE OF FEBRUARY 28 ( SCIENCE DAY) DISCOVERY OF RAMAN EFFECT
FIRST ANTIBIOTIC DRUG PENCILLIN

WORLDS BIGGEST WATER PLANT AMAZON WATER LILLY

ORGAN CONTROLS BODY TEMPERATURE SKIN

NUMBER OF BONES IN THE HUMAN BODY 206

HARDEST SUBSTANCE IN THE HUMAN BODY TOOTH ENAMEL

DISEASE CAUSED BY THE BITE OF A MAD DOG HYDROPHOBIA

DEFICIENCY OF VITAMIN D LEADS TO RICKETS

A HUMAN HEART HAS HOW MANY CHAMBERS FOUR

THE BALANCING ORGAN OF OUR BODY EAR

WHAT IS CALLED SUICIDAL BAGS LYSOSOME

THE SMALLEST BONE IN THE HUMAN BODY STAPES

VITAMIN WHICH IS PRODUCED BY THE SUNLIGHT VITAMIN D

THE COLOURING PIGMENT OF BILE BILIRUBINE

THE ENZYME WHICH DIGEST THE PROTEIN PEPSIN

THE ENZYME WHICH DIGEST THE FAT LIPASE

THE ENZYME WHICH DIGEST THE STARCH AMYLASE

WHICH WAS THE FIRST METAL MADE BY MAN COPPER

WHICH IS KNOWN AS ANIMAL STARCH GLYCOGEN

UNIT OF LOUDNESS OF SOUND DECIBEL

UNIT OF ELECTRIC CURRENT AMPERE

STEAM ENGINE JAMES WATT

RADIO ACTIVITY HENTRY BECQUEREL

FIRST HEART TRANSPLANT OPERATON CHRISTAIN BARNARD

THE FIRST INDIAN SATELLITE ARYBHATTA

INDIAS FIRST NUCLEAR EXPLOSION POKHRAN

NOBEL PRIZE IN CHEMISTRY AND PHYSICS MARIE CURIE

CHARLS DARWIN BELONGS TO BRITAIN

THEORY OF RELATIVITY EINSTEIN

QUANTUM THEORY MAX PLANK

X-RAYS RONTGEN

DNA DOUBLE HELIX MODEL WATSON AND CRICK

DEFICIENCY OF VITAMIN C LEADS TO SCURVY

PROLONGED BLEEDING DUE TO DEFICIENCY OF VITAMIN K

TO MEASURE ATMOSPHERIC PRESSURE BAROMETER

STUDY OF BIRDS ORNITHOLOGY

STAMP COLLECTION PHILATELY

STUDY OF COINS NUMISMATICS

SCIENCE OF OLD AGE GERENTOLOGY

ANTI TUBERCULOSIS VACCINE BCG

DRY ICE SOLID CARBON DIOXIDE

Astronomy Facts

admin — Tue, 06 Jan 2009 04:25:42 +0000

Astronomical Facts

The farthest visible object in space : Andromeda Galaxy

The only Star of the Milky Way : Sun

The first commucication satelite of the world : Echo,USA

Halley’s comet belongs to the family of which planet: Neptune’s

The first Spaceship that took man to space: Vostok 1

The first American launched in a spaceship : John. H. Glenn

The comets orbit around :the sun

The landing craft used by Amstrong on the moon :Eagle

The first space rocket to hit the moon : Lunik 2