NP but Archimedes/roots of gravity
grladams at mail.teleport.com
grladams at mail.teleport.com
Thu Jul 13 05:15:38 CDT 2000
Subject: archimedes' words article
Scientists Find Archimedes' Words
ROCHESTER, N.Y. (AP) - Scientists at Rochester Institute of Technology are
restoring a 10th century manuscript - the only known copy in the original
Greek of some of the writings of mathematician Archimedes.
The text, which scholars believe was copied in the 10th century by a scribe
from Archimedes' original scrolls, was erased 200 years later by a monk who
reused the parchment for a prayer book. It was purchased anonymously at a
1998 auction for $2 million.
Using digital cameras and processing techniques as well as ultraviolet and
infrared filters, the scientists captured images of the original words and
drawings that were washed away and then covered with a new text.
``There is always a residual, traces of what was there,'' said Robert
Johnston, an archaeologist and RIT professor emeritus. ``It's amazing what
can come out. Soon, nothing will be secret or hidden.''
Archimedes lived from about 287-212 B.C. The manuscript is the only copy in
the original Greek of Archimedes' theory of flotation of bodies, which holds
that the buoyant force on an object immersed in a fluid is equal to the
weight of the fluid displaced.
The text and diagrams also detail his mathematical treatises and mechanical
theorems and contain the roots of modern calculus and gravitational theory.
The team is working on five pages from the text as part of a competition
that will determine who will analyze the entire manuscript, which contains
more than 170 pages.
``This book is Archimedes' brain in a book,'' said William Noel, curator of
the Walters Arts Gallery in Baltimore, where the manuscript is kept. ``What
we need to do is X-ray that brain.''
RIT's scientists plan to finish their work by September. The gallery expects
to make a selection by the end of the year.
The text is on vellum, a writing surface made from animal skin. It was
cleaned off in the 12th century and the valuable parchment was reused in a
Greek prayer book.
The book disappeared from the Convent of the Holy Sepulchre in
Constantinople in the 1920s. It resurfaced in the possession of a French
family in the 1930s and was sold by the family in 1998.
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