The Teacher's Guide to Illustration: A Manual to Accompany Holbrook's School Apparatus

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Holbrook School Apparatus Company, 1861 - 181 páginas
 

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Página 193 - The heavens declare the glory of God: And the firmament showeth His handiwork. Day unto day uttereth speech: And night unto night showeth knowledge. There is no speech nor language: Where their voice is not heard.
Página 16 - ... and formless are all the ideas they present to you. But the eye is the great thoroughfare between the outward and material infinite, and the inward and spiritual infinite. The mind often acquires, by a glance of the eye, what volumes of books and months of study could not reveal so livingly through the ear. Every thing that comes through the eye, too, has a vividness, a clear outline, a just collocation of parts, — each in its proper place, — which the other senses can never communicate....
Página 16 - At the last session of the Legislature, a law was enacted, authorizing school districts to raise money for the purchase of apparatus and Common-School libraries, for the use of the children, to be expended in sums not exceeding thirty dollars, for the first year, and ten dollars, for any succeeding year. Trifling as this may appear, yet I regard the law as hardly second in importance to any which has been passed since the year 1647, when Common Schools were established. Every district can find some...
Página 71 - This instrument is designed to illustrate all the phenomena resulting from the relations of the Sun, Moon and Earth, to .each other. The most important of these phenomena are the succession of day and night ; the change of seasons ; the change of the Sun's declination ; the different lengths of day and night; the rising of the Sun north of east in summer; the changes of the Moon ; solar and lunar eclipses; spring and neap tides; the later daily recurrence of the tides; the length of days on the Moon;...
Página 16 - ... increase tenfold the efficiency of our Common Schools. I mean, the use of some simple apparatus, so as to employ the eye, more than the ear, in the acquisition of knowledge. After the earliest years of childhood, the superiority of the eye over the other senses, in quickness, in precision, in the vastness of its field of operations, and in its power of penetrating, like a flash, into any interstices, where light can go and come, is almost infinite.
Página 42 - What part of it do you see, the inside or the outside; ? What is the outside called ? What is the middle of a solid called ? What things have you seen of this shape ? If a marble or a ball were not exactly a sphere, would it roll evenly? What then is the best form for a ball or marble ? Do you know that the earth on which we live, and the sun and moon are nearly like this ball in shape? Now tell me what part of the earth do you live on ? Suppose you lived down in a coal mine, would you live on the...
Página 43 - Is it flat or curved ? What does it end in at the top ? Say, a cone has one curved side ending in a point. Has it any edges ? Now repeat the names of the parts of the cone, as I point to them — one flat circular base, one circular edge, one curved side, one point. Look, I have made a cone of...
Página 117 - Proof 8th. Were the earth ever a fluid, (and there is sufficient evidence to show this to be a fact,) the force of gravity would have compelled it to take the form of a sphere. 48. THE EARTH A SPHEROID. That the earth is not a perfect sphere, but a spheroid, having the polar diameter shorter than the equatorial, appears from the following proofs : Proof 1st. A pendulum vibrates more rapidly as it is carried from the equator toward either pole. Remark. The frequency of the vibrations of a pendulum...
Página 21 - ... and ten, on the eleventh, to represent hundreds ; and so arranged, by twos, threes, fives, and tens, that any number, not exceeding one thousand, can be read off as easily as by the use of ciphers. Let us now take a class, who cannot count. The teacher, holding the frame so that the beads are all on one side, and passing one of those on the upper wire across to the opposite side, says, " There is one bead. Repeat, after me, one bead ; (passing another across,) two beads;" &c., till all the ten...
Página 156 - LATER DAILY RECURRENCE OF TIDES. Tides happen about fifty minutes later every day, in consequence of the motion of the Moon in its orbit around the Earth. This may be shown by giving motion to the Tellurian arm, and the globe on its axis at the same time. Observe that any place on the Earth must make more than an entire revolution to come around the second time under the moon, whereas if the moon were stationary, then a complete revolution would bring...

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