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Updated: May 18, 2025
Then it was swiftly lifted; there was the gleam of an immense mass of silver in its meshes, an instant of furious struggle, the quick stroke of a short, heavy baton; and the great salmon was landed and despatched. The hook was well set in the outside of his jaw, just underneath his chin; no wonder he played so long, with his mouth shut! Bring the spring-balance and test his weight.
Procope and Timascheff demurely bowed their heads. The professor resumed. "Upon a steelyard, or spring-balance, dependent upon mere tension or flexibility, the attraction will have no influence. If I suspend a weight equivalent to the weight of a kilogramme, the index will register the proper weight on the surface of Gallia.
Sitting in the shade of the poop, they opened the box, which was filled with fine dull-yellow grains. Then Lister sent a man to the boat for some things he had brought, and when the fellow came back hung a small steel cup from a spring-balance. "The scale's pretty accurate; I use it on board," he said.
I reply, on the same principle by which a butcher weighs a ham in a spring-balance. When he picks the ham up, he feels a pull of the ham towards the earth. When he hangs it on the hook, this pull is transferred from his hand to the spring of the balance. The stronger the pull, the farther the spring is pulled down. What he reads on the scale is the strength of the pull.
And sceptical physicists like Sir William Crookes demonstrate by laboratory experiments that "mediums" like Douglas Home can make the pointer of a spring-balance go round without touching the weight suspended from it. Nor is belief in individual immortality any criterion.
If I remember correctly, Damoiseau estimated its mass at about three one-hundredths that of the Earth, which would make its surface gravity about one-sixth. However, it is actually almost a half, as you see by this spring-balance here. Therefore it is quite a little more massive than has been...." "What of it? Let's go places and do things!"
The weight of objects is not the same all over the world; a thing which weighs thirty pounds in New York would weigh an ounce more than thirty pounds in a spring-balance in Greenland, and nearly an ounce less at the equator. This is because the earth is not a perfect sphere, but a little flattened. Thus weight varies with the place.
When within one thousand feet of the surface, Seaton weighed a five-pound weight upon a spring-balance, finding that it weighed five and a half pounds, thus ascertaining that the planet was either somewhat larger than the Earth or more dense. The ground was almost hidden by a rank growth of vegetation, but here and there appeared glade-like openings. Seaton glanced at the faces about him.
If the butcher, with his spring-balance and a ham, could fly to all the planets, one after the other, weigh the ham on each, and come back to report the results to an astronomer, the latter could immediately compute the weight of each planet of known diameter, as compared with that of the earth.
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