Poor water quality and unsustainable use of water resources can limit the economic development of a country, harm health and affect livelihoods. On a positive note, more sustainable practices are starting to be adopted.
William S. Paley (September 28, 1901 â October 26, 1990) was the chief executive who built Columbia Broadcasting System (CBS) from a small radio network into one of the foremost radio and television network operations in the United States.
William Jones (mathematician) William Jones, FRS (1675 â 3 July 1749) was a Welsh mathematician, most noted for his proposal for the use of the symbol Ï (the Greek letter pi) to represent the ratio of the circumference of a circle to its diameter. He was a close friend of Sir Isaac Newton and Sir Edmund Halley.