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Scientific American Supplement, No. 787, January 31, 1891电子书

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作       者:Various

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出版时间:2018-02-27

字       数:19.5万

所属分类: 教育 > 外语 > 实用英语

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The Colbert was launched at Brest in 1875, and her sister ship, the Trident, in 1876. Both are of iron and wood, and the following are the principal dimensions of the Colbert, which apply very closely to the Trident: She is 321 ft. 6 in. long, 59 ft. 6 in. beam, and 29 ft. 6 in. draught aft. Her displacement is 8,457 tons, her indicated horse power is 4,652, and her speed 14.4 knots. She has coal carrying capacity for 700 tons, and her crew numbers 706. The thickness of her armor belt is 8.66 in., that protecting the central battery is 6.29 in. thick, which is also the thickness of the transverse armored bulkheads, while the deck is 0.43 in. in thickness. The armament of the Colbert consists of eight 10.63 in. guns, two 9.45 in., six 5.51 in., two quick firing guns, and fourteen revolving and machine guns.—Engineering.
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THE FRENCH IRONCLAD WAR SHIP COLBERT.

STEAM ENGINE VALVES.1

RIDING CUT-OFF VALVES—PECULIARITIES AND MERITS OF THE DIFFERENT STYLES.

FIRING POINTS OF VARIOUS EXPLOSIVES.

STATION FOR TESTING AGRICULTURAL MACHINES.

WATER SOFTENING AND PURIFYING APPARATUS.

THE TRISECTION OF ANY ANGLE.

TEST CARD HINTS.

CHARLES GOODYEAR.

THE ELECTROMAGNET.1

III.RESEARCHES OF PROFESSOR HUGHES.

POSITION AND FORM OF ARMATURE.

POLE PIECES ON HORSESHOE MAGNETS.

CONTRAST BETWEEN ELECTROMAGNETS AND PERMANENT MAGNETS.

ELECTROMAGNETS FOR MAXIMUM TRACTION.

ELECTROMAGNETS FOR MAXIMUM RANGE OF ATTRACTION.

ELECTROMAGNETS OF MINIMUM WEIGHT.

A USEFUL GUIDING PRINCIPLE.

ELECTROMAGNETS FOR USE WITH ALTERNATING CURRENTS.

ELECTROMAGNETS FOR QUICKEST ACTION.

CONNECTING COILS FOR QUICKEST ACTION.

BATTERY GROUPING FOR QUICKEST ACTION.

TIME CONSTANTS OF ELECTROMAGNETS.

SHORT CORES versus LONG CORES.

ELECTRIC ERYGMASCOPE.

A NEW ELECTRIC BALLISTIC TARGET.

THE OUTLOOK FOR APPLIED ENTOMOLOGY.1

LEGISLATION.

PUBLICATION.

CO-OPERATION.

THE DEPARTMENT AND THE STATIONS.

STATUS OF OUR SOCIETY.

SUGGESTION AND COMMENT.

CONCLUSION.

POTASH SALTS.1

EXPERIMENTS.

THE EXPENSE MARGIN IN LIFE INSURANCE.

THE FLOOD AT KARLSBAD.

THEATRICAL WATER PLAYS.

SCIENCE IN THE THEATER.

NEWER PHYSIOLOGY AND PATHOLOGY.

THE COMPOSITION OF KOCH'S LYMPH.

WHAT PROFESSOR KOCH SAYS IT IS, AND WHAT IT CAN DO.(By Cable to the Medical Record.)

CAN WE SEPARATE ANIMALS FROM PLANTS?

THE RECOVERY OF SILVER AND GOLD FROM PLATING AND GILDING SOLUTIONS.

A new Catalogue of Valuable Papers

Architects and Builders Edition

Building Plans and Specifications.

Scientific American Supplement.

Useful Engineering Books

PATENTS.

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