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2016

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Scientists create worlds smallest thermometer from _________
A
Brain
B
Bones
C
DNA
D
None of the above
Explanation: 

Detailed explanation-1: -Scientists have developed world’s Smallest (Nano) Thermometer using DNA (Deoxyribonucleic acid) structures that can fold and unfold at specifically defined temperature functions.

Detailed explanation-2: -In 1654, Ferdinand II de’ Medici, Grand Duke of Tuscany, produced sealed tubes with a bulb and stem that were partly filled with alcohol. This was the first thermometer to depend on the expansion and contraction of a liquid, which was independent of barometric pressure.

Detailed explanation-3: -Anders Celsius, regarded as the founder of Swedish astronomy, is best remembered as the inventor of the Celsius temperature scale (often called the centigrade scale), in which 0°C is the freezing point of water and 100°C is the boiling point.

Detailed explanation-4: -The thermometer as we know it was invented in 1612 in what is now Italy by Santorio Santorii. He sealed liquid inside a glass tube, observing how it moved up the tube as it expanded. A scale on the tube made it easier to see changes, but the system lacked precise units.

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