Eijkman—Cause of Beri-Beri.
Finsen—Discovered curative effect of ultra violet rays; photography.
Fleming, Alexander—Penicillin (in 1929).
Harvey—Circulation of blood.
Hahnemann—Homoeopathy (founder).
Hopkins, Frederick Gowland—Vitamin D.
Jenner—Smallpox Vaccination.
Koch—Tubercle Bacillus.
Lainnec—Stethoscope.
Lister, Lord—Antiseptic treatment.
Pasteur, Louis—Treatment of rabies; cure of hydrophobia.
Ronald Ross—Malaria Parasite.
Salk, Jonas E.—Anti-polio Vaccine.
Simpson and Harrison—Chloroform.
Waksman—Streptomycin.
SCIENTIFIC INSTRUMENTS
• Hydrometer measures humidity
• Barometer measures atmospheric pressure
• Purity of milk is measured by lactometer
• Fathometer measures the depth of oceans.
• Sextant is used for measuring altitude of Sun and other heavenly bodies
• Chronometer records accurate time on ships
• Algesimeter indicates the degree of sensitiveness of skin
• Altimeter measures altitudes
• Ammeter measures current
• Anemometer records velocity of wind
• Cyamometer measures blueness of sky or ocean
• Dasymeter measures density of gas
• Galvanometer measures small electric current
• Hydrometer measures relative density of liquids
• Hygrometer measures humidity in atmosphere
• Hypsometer measures atmospheric pressure to ascertain elevations by determining boiling point of liquid. Or Hypsometer is an instrument for measuring the height above sea level.