THE COST OF WATER. The cost of supplying water varies significantly between western and developing nations, but prices are rising all around the world. Providing access to clean drinking water requires the construction and maintenance of a robust system that also disposes and treats dirty water.
In the 1830s, Robert Anderson of Scotland built an electric carriage. Powered by non-rechargeable power cells, the car wasn't very practical. Electric cars wouldn't be practical until rechargeable lead-acid batteries were invented in 1859. By 1886, Karl Friedrich Benz of Germany had invented the first gasoline-powered car. It was a three-wheeled vehicle, which other engineers later improved by adding a fourth wheel and a more efficient engine.
The first person to experiment with an internal-combustion engine was the Dutch physicist Christian Huygens, about 1680.But no effective gasoline-powered engine was developed until 1859, when the French engineer J. J. Ãtienne Ã©tienne lenoir built a-double, acting-spark ignition engine that could be operated. continuouslyhe first person to experiment with an internal-combustion engine was the Dutch physicist Christian Huygens, about 1680.