Science Quiz: Overturned concepts within the historical past of science

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Within the mediaeval period, astronomers defended the geocentric mannequin of the universe utilizing the thought of epicycles and Z, proven right here because the smaller and bigger dashed circles, respectively. Title Z.

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Students 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 speculation. Title it.

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

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

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

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Title the early twentieth century speculation — which claimed that the totally different warmth capacities of land and ocean surfaces triggered continents to maneuver — that was later eclipsed by paleomagnetic information and proof of spreading seafloors revealing the speculation of plate tectonics.

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