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:
“The tendencies of the times favor the idea of self-government, and leave the individual, for all code, to the rewards and penalties of his own constitution, which work with more energy than we believe, whilst we depend on artificial restraints.”
—Ralph Waldo Emerson (18031882)
“New York ... is a city of geometric heights, a petrified desert of grids and lattices, an inferno of greenish abstraction under a flat sky, a real Metropolis from which man is absent by his very accumulation.”
—Roland Barthes (19151980)
“Lock in! Be alert, my acrobat
and I will be soft wood and you the nail
and we will make fiery ovens for Jack Sprat
and you will hurl yourself into my tiny jail
and we will take a supper together and that
will be that.”
—Anne Sexton (19281974)