Science Frontiers ONLINE No. 78: Nov-Dec 1991 Issue Contents

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Who was manufacturing what?

Between 240,000 and 750,000 years ago, someone in the northern Jordan Valley made a flat, polished plank, 25 centimeters long, from a willow tree. The area where the plank was found is Middle Pleistocene in age and rich in stone tools as well as fragments of wood.

("Mollusc Confirms Dating of Oldest Known Plank," New Scientist, p. 14, July 20, 1991.)

From Science Frontiers #78, NOV-DEC 1991. © 1991-2000 William R. Corliss

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Science Frontiers Sourcebook Project Reviewed in: Icarus: Volume 41, Issue 3, p. 470-470 1984, Vol.56:3, P.615 1983, Vol.58:3 June 1984, Vol.60:3 Dec 1984, Vol.72:3 Dec 1987 Journal of the Royal Astronomical Society of Canada, Vol. 81, no. 1 1987 American Journal of Physics, Volume 52, Issue 8, p. 764 August 1984 Quotes "Before opening the book, I set certain standards that a volume which treads into dangerous grounds grounds like this must meet. The author scrupulously met, or even exceeded those standards. Each phenomenon is exhaustively documented, with references to scientific journals [..] and extensive quotations" -- "Book Review: The moon and planets: a catalog of astronomical anomalies", The Sourcebook Project, 1985., Corliss, W. R., Journal of the Royal Astronomical Society of Canada>, Vol. 81, no. 1 (1987), p. 24., 02/1987