DescriptionChemical traffic light reaction (yellow).jpg English: The color of the solution would appear to be as shown in the image when it is left unstirred...
The new engine for the Brooklyn Waterworks, built by Hubbard and Whittaker (IA sim engineering-and-mining-journal 1870-04-05 9 14) (page 1 crop).jpg....
This file has an extracted image: The Works of H G Wells Volume 4 (page 10 crop).jpg....
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