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| | Inventors |
 | | During this period Polhem's numerous designs included hoisting devices, mine pumps, burglar-proof locks, pendulum clocks, sluices, shipbuilding docks, the Polhemsknut (a flexible shaft coupling), and a wide range of textile and agricultural machinery. |
 | | But due to problem it was delayed and he didn't live when it was finished, but the people that saw the canal said it must be the eight Wonder of the World, because the canal had been made through the old mountain and with that the ships could pass more easily. |
 | | Polhem made two sluices, one in Stckholm and one in Trollhättan that was named the Polhem sluice. |
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