OCR Text |
Show White Coal White coal is the figurative name for falling water that is capable of being used for power purposes. The term originated in France; it is the literal translation transla-tion of houille blanche and was probably suggested because much of the. falling water in France originated in snow-covered mountains, moun-tains, or because falling water when filled with air bubbles appears ap-pears white when compared with the blackness of coal. Tide water, usable for power, is sometimes called "blue coal. |