Important Scientific Instruments and their usage
Important Scientific Instruments and their usage
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- Accumulator : It is used to store electrical energy
- Altimeter : It measures altitudes and is used in aircraft.
- Ammeter : It measures strength of electric current (in amperes).
- Anemometer : It measures force and velocity of the wind.
- Audiometer : It measures the intensity of sound.
- Audiphones : It is used for improving the imperfect sense of hearing.
- Barograph : It is used for continuous recording of atmospheric pressure.
- Barometer : It measures atmospheric pressure.
- Binocular : It is used to view distant objects
- Bolometer : It measures heat radiation
- Calorimeter : It measures the quantity of heat.
- Carburettor : It is used in an internal combustion engine for charging the air with petrol vapor.
- Cardiogram : It traces movements of the heart, recorded on a cardiograph.
- Chronometer : It determines the longitude of a place kept the onboard ship.
- Cinematography : It is an instrument used in cinema making to throw on screen and enlarged image of the photograph.
- Colorimeter : An instrument for comparing intensities of color.
- Commutator : An instrument to change or remove the direction of an electric current, in dynamo used to convert alternating current into direct current.
- Cresco graph : It measures the growth in plants.
- Cyclotron : A charged particle accelerator which can accelerate charged particles to high energies.
- Dynamo : It converts mechanical energy into electrical energy
- Dynamometer : It measures force, torque, and power
- Electroscope : It detects the presence of an electric charge.
- Endoscope : It examines internal parts of the body.
- Eudiometer : A glass tube for measuring volume changes in chemical reactions between gases.
- Fathometer : It measures the depth of the ocean.
- Galvanometer : It measures the electric current of low magnitude.
- Hydrometer : It measures the specific gravity of liquids.
- Hydrophone : It measures sound under water.
- Hygrometer : It measures humidity in the air.
- Kymograph : It graphically records physiological movements (Blood pressure and heartbeat).
- Lactometer : It determines the purity of milk.
- Manometer : It measures the pressure of gases.
- Mariner’s compass : It is an instrument used by the sailors to determine the direction.
- Microphone : It converts the sound waves into electrical vibrations and to magnify the sound.
- Microscope : It is used to obtain the magnified view of small objects.
- Odometer : An instrument by which the distance covered by wheeled vehicles is measured.
- Periscope : It is used to view objects above sea level (used in submarines)
- Phonograph : An instrument for producing sound.
- Photometer : The instrument compares the luminous intensity of the source of light
- Potentiometer : It is used for comparing electromotive force of cells.
- Pyrometer : It measures very high temperature.
- Quartz Clock : A highly accurate clock used in astronomical observations and other precision work
- Radar : Radio, angle, detection, and range is used to detect the direction and range of an approaching airplane by means of radio microwaves
- Radiometer : It measures the emission of radiant energy.
- Rain Gauge : An apparatus for recording rainfall at a particular place.
- Rectifier : An instrument used for the conversion of AC into DC.
- Refractometer : It measures refractive index.
- Saccharimeter : It measures the amount of sugar in the solution.
- Salinometer : It determines the salinity of solution.
- Seismograph : It measures the intensity of earthquake shocks.
- Sextant : This is used by navigators to find the latitude of a place by measuring the elevation above the horizon of the sun or another star.
അഞ്ചോണം പിന്ചോണം.
അത്തം പത്തിനു പൊന്നോണം.
അത്തം പത്തോണം.
അത്തം വെളുത്താൽ ഓണം കറുക്കും.
അത്തപ്പത്തോണം വന്നടുത്തെടോ നായരേ,ചോതി പുഴുങ്ങാനും നെല്ലു തായോ.
അവിട്ടക്കട്ട ചവിട്ടി പൊട്ടിക്കണം.
ആറോണം അരിവാളും വള്ളിയും.
ഉണ്ടെങ്കിലോണം പോലെ അല്ലെങ്കിലേകാദശി.
ഉത്രാടമുച്ച കഴിഞ്ഞാൽ അച്ചിമാർക്കൊക്കെയും വെപ്രാളം.
ഉറുമ്പു ഓണം കരുതും പോലെ.
ഉള്ളതുക...
രസതന്ത്രത്തിലെ മറ്റ് പേരുകൾ.
എപ്സം സാൾട്ട് മഗ്നീഷ്യം സൾഫേറ്റ് .
ഓയിൽ ഓഫ് വിട്രിയോൾ സൾഫ്യുറിക് ആസിഡ് .
ഓയിൽ ഓഫ് വിന്റർ ഗ്രീൻ മീഥയിൽ സാലിസിലേറ്റ് .
കറുത്ത വജ്രം കൽക്കരി .
കറുത്ത സ്വർണം പെട്രോളിയം .
ക്വിക് സിൽവർ മെർക്കുറി .
ക്വിക്ക് ലൈം കാൽസ്യം ഓക്സൈഡ് .
ഗ്രീൻ വിട്രിയോൾ ഫെറസ് സൾഫേറ്റ് .
ഘന ഹൈഡ്രജൻ ഡ്യുട്ടീരിയം .
തത്വജ്ഞാനികളുടെ...
A bolt from the blue : Unexpected incident .
A chip on your shoulder : Being upset for something that happened in past.
A slap on the wrist : Very mild punishment.
A stone through : Short distance.
A wolf in sheep clothing : A person who cannot be trusted.
Add fuel to the fire : To worsen a situation.
Against the clock : As fast as possible before a deadline.
All Greek to me : Something which cannot be understood.
An arm and a leg : Very expensive.
An axe to grind : To have dispute with someone.
At one's wit's end : Not knowing what to do.
At sixes and sevens : In utter disorder.
At the drop a hat : Showing readiness.
At the eleventh hour : At the last moment.
Baker's dozen : Thirteen.
Beat a dead horse : To force an issue that has already ended.
Beating around the bush : Avoiding the main topic.
Bite your tongue : To...
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