Artificial Petrified Wood
Artificial petrified wood has been produced in a Washington laboratory. In the process small cubes of pine are soaked in an acid bath for two days, then in a silica solution for another two. The product is then cooked at 1400 °C in an argon atmosphere for two hours. The result was silicon carbide ceramic which preserved the intricate cell structure of the wood.
Read more about this topic: Petrified Wood
Famous quotes containing the words artificial, petrified and/or wood:
“Nothing strengthens the judgment and quickens the conscience like individual responsibility. Nothing adds such dignity to character as the recognition of one’s self-sovereignty; the right to an equal place, everywhere conceded—a place earned by personal merit, not an artificial attainment by inheritance, wealth, family and position.”
—Elizabeth Cady Stanton (1815–1902)
“In spite of his practical ability, some of his experience had petrified into maxims and quotations.”
—George Eliot [Mary Ann (or Marian)
“My mother said that I never should
Play with the gypsies in the wood,”
—Unknown. Gypsies in the Wood (l. 1–2)