cosmos. A wizard, be it known, is a male witch, and the Bible
says, "Thou shalt not suffer a witch to live," although it does not say
anything about wizards.
But please note this: the wizard who had that magic box and flea had
really the first microscope.
Galileo bought a pair of "magic glasses," or spectacles, about the year
Sixteen Hundred Seven; and his action, in so doing, was freely
criticized.
On a visit to Venice, where glass had been manufactured since long
before the Flood, Galileo was looking through one of the
glass-factories, just as visitors do now, and one of the workmen showed
him a peculiar piece of glass which magnified the hairs on the back of
his hand many times.
In a very few days after this, Galileo heard that a Dutch
spectacle-maker had placed certain queer-shaped pieces of glass in a
tube, and offered to sell this tube to the Government, so by its use,
soldiers could see the movements of an enemy many miles away.
That night Galileo did not close his eyes in sleep. He thought out a
plan by which he could place pieces of glass in a tube, and bring the
stars close to the earth. By daylight the whole plan was clear in his
mind, and he hastened to the shop of the glassmakers.
There, two lenses were made, one plano-convex, and the other
plano-concave, and these were placed in a tube made of sheet copper. It
was tested on distant objects; and behold! they were magnified by three.
Would this tube show the stars magnified? Galileo knew of no reason why
it should not, but he paced his room in hot impatience, waiting for the
night to come with its twinkling wonders, that he might verify his
convictions. When the first yellow star appeared in the West, Galileo
turned his tube upon it, and behold! instead of twinkling points of
light, he saw a round mass--a world--moving through space, and not a
scintillating object with five points. The twinkling spikes, or points,
were merely an optical illusion of the unaided senses.
Galileo made no secret of his invention. It was called "Galileo's Tube,"
but some of the priests called it Galileo's "Magic Tube."
Yet it marked an era in the scientific world. Galileo endeavored
constantly to improve his instrument; and from a threefold magnifying
power, he finally made one that magnified thirty-two times.
Galileo made hundreds of telescopes, and sold them at moderate prices to
any one who would buy. He explained minutely the construction of the
instrument
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