THE YOUTH'S CABINET. 93 | 1, 8, 5,7; that is, that if a body falls fifteen Paris feet (about sixteen English) in one second, it will fall forty-five in two, seventy-five in three, and so on, Some think that he invented the ther- mometer. This is not certain, however ; though if he did not invent, he improved it, and brought it to a higher state of perfection. The telescope remained a useless instrument, until Galileo turned it toward the heavens, Ina short time, he made some of the most important discoveries, in relation to the heavenly bodies. He found that the moon, as well as the earth, has an uneven sur- face; and he taught his disciples to measure the height of its mountains by the height of their shadow. His most remarkable discovery was that of Jupi- ter’s satellites and Saturn’s ring. He it was, too, who noticed the sun’s spots for the first time. In 1610, he was appointed grand- ducal mathematician and philosopher, He now became a prominent man in the eyes of the whole civilized world. But narrow-minded and bigoted men were more engaged than ever to overthrow his philosophy, and humble him in the dust. The monks preached against him. He was, in fact, obliged to go to Rome, to make his peace with the Pope and the cardinals. This he could only accomplish by promising that he would maintain his system no farther, either by his words or his Writings. It was with the utmost difficulty that he escaped falling into the hands of the Inquisition, even after this promise. Some years after he published a work, which drew down upon his head un- numbered vials of wrath. This time he in equal times, increase as the numbers | was not so successful with the ecclesias- V 2 J¥ HIS most remarkable man was born at Pisa, in Italy, in the year 1564. When he was only nine- teen, the swinging of a lamp suspended from the ceiling of the cathe- dral in Pisa, led him to investigate the laws of the swinging of a pendulum, which he was the first to apply as a measure of time. His active mind was constantly occupied with the great laws of nature, and he found out a great many of those which, until his time, were un- known. Some of the opinions which he maintained were not only new, but ex- tremely obnoxious to the disciples of the Romish church—a church which, you know, insists on deciding what a man may believe, and what he may not be- lieve. For asserting, especially, that the earth and other planets revolved, in Separate orbits, around the sun, he was severely persecuted. He was, indeed, obliged to give up the professorship of mathematics, a post to which he had been elected when quite a youth, on account of this and similar notions, which were regarded as intolerable heresies, It was Galileo who discovered that the spaces through which a body falls,