A multivalent nonmetal of the nitrogen group, phosphorus is commonly found in inorganic phosphate rocks. Phosphorus is a mineral that makes up 1% of your total body weight. While it is in every cell of your body, most of the phosphorus in your body is in your bones and teeth. Approximately 85% of your body's phosphorus is in your bones. 5 people found this useful.
The credit of inventing zipper goes to Whitcomb Judson of Chicago in 1891. He got the patent for this clasp locker in August 1893. Judson was tired of tying his shoe laces and then had an idea of inventing hook and eye fasteners for the shoes.hough it is believed that in 1851 Howe made the first zipper in the name of Automatic Continuous Clothing Closure but he was to busy with his sewing machine invention that he could not devote time to the marketing of the same.
Tank Development. Richard Edgeworth invented the Caterpillar track in 1770. In the Crimean War a small number of steam powered tractors based on this design proved very successful in the muddy terrain. The development of the modern tank remained dormant until the arrival of the internal combustion engine, patented by Gottlieb Daimler in 1885. In the United States the Holt Company built a tractor with caterpillar tracks that was used to move over difficult territory. Although it was suggested that this machine might be adapted for military use, those in positions of authority failed to see the significance of this new development.