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Updated: May 2, 2025
You would think the man had pretty good molars that should gnaw a spike like a stick of candy, but a bottle of innocent-looking hydrogen-gas will chew up a piece of bar-iron as though it were some favorite Cavendish. The prominent lesson of science to men, therefore, is faith in the intangible and invisible. Shall we talk of matter as the great reality of the world, the prominent substance?
They are airtight and filled with compressed helium-gas, which is non-inflammable and nearly as light as its highly volatile rival, hydrogen-gas." "Hydrogen-gas is surely a dangerous commodity around fire," said Mr. Giddings.
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