The names given to the various lines of a tooth on a gear-wheel are as follows: In Figure 233, A is the face and B the flank of a tooth, while C is the point, and D the root of the tooth; E is the height or depth, and F the breadth. P P is the ... Read more of Drawing Gear Wheels at How to Draw.caInformational Site Network Informational
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- The Constellations Of Spring.

- Hercules (her´-kū-lēz)—the Kneeler.

- Ursa Minor (er´-sa Mi´-nor)—the Little Bear. (face North.)

- Ursa Major (er´sa Mā´-jor)—the Great Bear. (face North.)

- Cetus (sē´-tus)—the Whale. (face Southeast.)

- Leo (le´o)—the Lion. (face South.)

- Corvus (kôr´-vus)—the Crow. (face South.)

- Auriga (â-ri´-ga)—the Charioteer. (face Northwest.)

- The Diagrams.

- Coma Berenices (kō´-ma Ber-e-ni´-sez)—berenice's Hair.

- The Constellations Of Autumn.

- Scorpius (skôr´-pi-us)—the Scorpion. (face South.)

- Andromeda (an-drom´-e-dä)—the Chained Lady.

- Aquarius (a-kwā´ri-us)—the Water Carrier. (face Southwest.)

- Ophiuchus (of-i-ū-kus)—the Serpent Bearer, And Serpens. (face Southwest.)


columba Noachi (co-lum´-bä Nō-ä´-ki)—noah's Dove. (face South.)








Location.—Columba is situated just south of Lepus. A line drawn from Rigel, in Orion, to β Leporis, and prolonged as far again, ends near α and β, the two brightest stars in Columba.


A line drawn from the easternmost star in the belt of Orion, 32° directly south, will point out Phaet, in Columba. It makes with Sirius, in Canis Major, and Naos, in the Ship, a large equilateral triangle.


The star β Columbæ may be known by means of a smaller star just east of it, marked γ.


The Chinese call α Chang Jin, the old Folks. Lockyer thinks it was of importance in Egyptian temple worship, and observed from Edfu and Philæ as far back as 6400 b.c.


On a clear starlight night there are not more than a thousand stars visible to the naked eye at one time. The largest telescope reveals nearly a hundred million.


COLUMBA COLUMBA









Next:

canis Major (kā´-nis Mā-jor)—the Greater Dog. (face South.)



Previous:

lepus (lē´-pus)—the Hare. (face South.)





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