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Scientific American Supplement, No. 531, March 6, 1886电子书

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作       者:Various

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出版时间:2018-02-27

字       数:18.7万

所属分类: 教育 > 外语 > 实用英语

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Roumania is thinking of protecting a portion of the artillery of the forts surrounding her capital by metallic cupolas. But, before deciding upon the mode of constructing these formidable and costly affairs, and before ordering them, she has desired to ascertain their efficacy and the respective merits of the chilled iron armor which was recently in fashion and of rolled iron, which looks as if it were to be the fashion hereafter.
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THE USE OF IRON IN FORTIFICATION.

HIGH SPEED ON THE OCEAN.

SIBLEY COLLEGE LECTURES.

PRINCIPLES AND METHODS OF BALANCING FORCES DEVELOPED IN MOVING BODIES.

COMPRESSED AIR POWER SCHEMES.

THE BERTHON COLLAPSIBLE CANOE.

THE FIFTIETH ANNIVERSARY OF THE OPENING OF THE FIRST GERMAN STEAM RAILROAD.

IMPROVED COAL ELEVATOR.

STEEL-MAKING LADLES.

APPARATUS FOR DEMONSTRATING THAT ELECTRICITY DEVELOPS ONLY ON THE SURFACE OF CONDUCTORS.

THE COLSON TELEPHONE.

THE MELDOMETER.

TOUCH TRANSMISSION BY ELECTRICITY IN THE EDUCATION OF DEAF-MUTES.

WATER GAS.

ANTISEPTIC MOUTH WASH.

ANNATTO.

JAPANESE RICE WINE AND SOJA SAUCE.

ALUMINUM.

THE ORIGIN OF METEORITES.

CANDELABRA CACTUS AND CALIFORNIA WOODPECKER.

HOW PLANTS ARE REPRODUCED.

THE SCIENTIFIC AMERICAN SUPPLEMENT.

PATENTS.

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