Science Quiz: Overturned ideas in the history of science

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In the mediaeval period, astronomers defended the geocentric mannequin of the universe utilizing the concept of epicycles and Z, proven right here as the smaller and bigger dashed circles, respectively. Name Z.

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Scholars as soon as invoked this principle to clarify why metals might burn with out gaining obvious mass. It was dismissed after Antoine Lavoisier’s experiments revealed that some part of air reacts with substances when they’re burnt, forcing chemists to desert the principle. Name it.

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Before Michelson’s and Morley’s 1887 experiment, pure philosophers assumed a medium referred to as X permeated the universe, permitting gentle waves to journey all over the place. Eighteen years after the experiment, a principle referred to as X posited that gentle didn’t want a brand new medium to journey in, rendering X superfluous. Name X and Y.

Answer : X =  luminiferous aether; Y = particular principle of relativity

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For centuries, students believed residing beings might come up de novo from mud, meat or grain. This concept, referred to as ___________ __________, was challenged by a collection of experiments in the seventeenth century performed by Francesco Redi, an Italian doctor who confirmed that maggots are born from the eggs of flies. Fill in the blanks.

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Name the early twentieth century speculation — which claimed that the completely different warmth capacities of land and ocean surfaces brought on continents to maneuver — that was later eclipsed by paleomagnetic knowledge and proof of spreading seafloors revealing the principle of plate tectonics.

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Until the early twentieth century, physicists assumed that warmth had no decrease restrict and might be extracted to an infinite diploma from an object. The concept was dethroned when, in their race to liquefy helium first, James Dewar and Q discovered that the temperature designated 0 Okay is definitely unattainable. Name Q.