School
of Professional Education "Koriphey" Pereslavl - Zalessky, Russia |
|
Time-edition: 2002 |
 The
stony sinker was finded not far from Ekaterinburg. The sinker has
a round form. The age of this sinker is about three thousand years.
Archaeologists think, that it is not only a sinker, but an acient
calendar of fishermen. The base of this calendar is a biology rhythms
of fishes. |