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Exams - CAT

Read many objective multiple choice questions of Exams - CAT in English. Practise online thousands of questions related to Exams - CAT. You can check online answer and try mock tests for Exams - CAT Questions provided in English.

What Galileo invented?

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    Various authors have credited the invention of the thermometer to Cornelius Drebbel, Robert \nFludd, Galileo Galilei or Santorio Santorio. The thermometer was not a single invention, \nhowever, but a development.\nGalileo Galilei also discovered that objects (glass spheres filled with aqueous alcohol) of \nslightly different densities would rise and fall, which is nowadays the principle of the Galileo \nthermometer (shown). Today such thermometers are calibrated to a temperature scale.

What is the name of the CalTech seismologist who invented the scale used to measure the magnitude of earthquakes?

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When was barb wire patented?

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    Joseph F. Glidden was born in New York on Jan. 18, 1812. He invented barbed wire in 1873 and was granted the patent on Nov. 24, 1874. After a three year battle over the patent, which he eventually won, Gidden became known as the "Father of Barbed Wire".

Which scientist discovered the radioactive element radium?

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What J. B. Dunlop invented?

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