Furthermore he also uses light where he showed that

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Furthermore, he also uses light, where he showed that light can travelthrough a vacuum, because when air was pumped out of the jar, everythingin the jar remained perfectly visible. Using a candle, Boyle showed that avacuum will not support combustion. He also found that only part of the airsupports combustion – he thought a very small part. Boyle’s The ScepticalChymist, was successfully a turning point in chemistry. Boyle began toexplore more chemistry from the mysticism of alchemy. Boyle rejectedAristotle’s theory and elements: earth, water, air and fire. He also rejectedParacelsus’s principles of salt, sulfur and mercury. Boyle argued about“compounds” were produced when elements combined to form newsubstances, unlike mixtures in which no new substances formed. Boylecorrectly defined elements as simple substances that could not bedecomposed into other substances. Even he did an excellent definition of anelement, he did not believe any true elements had yet been discovered.Unfortunately, he could not find an experimental method to prove whether asubstance was an element or not, and he thought substances such as gold,silver and sulfur were actually compound. Galileo and René Descartes alsobelieved that all substances are made of atoms, but Descartes thought therecould be no void. Boyle was correct by proving the behavior of substancescould be explained through the motion of atoms, which in turn could beunderstood through mechanics Galileo’s mathematics of motion. Boylebelieve that one element could be transmuted into another. He thought,correctly, that this could be achieved through a rearrangement of the basicparticles making up the element. This explanation was first achievedby Ernest Rutherford in 1919 when he transformed nitrogen into oxygen. Hehad already made a clean break with the alchemists’ tradition. He warnedthat impure chemicals could cause errors in experiments, by incorrect use ofequipment. He explained how different people could honestly obtain verydifferent results in an experiment, therefore experiments and their
procedures while doing such experiment they needed to be carefullydocumented or record for others to see how they had been carried out. Heemphasized the need to repeat experiments for further results. He likened itto explorers who had been blown off course, only to discover new. In the1700s heat was associated with the behavior of a non-existent substancecalled caloric. Boyle’s admiration to and following in the footsteps of Galileoand Descartes, believed that heat is related to the movement of particles. In1675 he offered a rather good description of the relationship betweentemperature and the movement of particles.ParacelsusThe Swiss physician and alchemist Paracelsus was born on November 11,1493 in Einsiedeln, Switzerland and after all accomplishments for year in hislife and ended on September 24, 1541 in Salzburg, Austria. He was one ofthe most influential medical scientists in early modern Europe. Theophrastus

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