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The Vertical Olive Crushing Mill as a Machine and its Energy Balance - A Preliminary Approach

Antonis G. Katsarakis (GR)

Introduction

The vertical monolithic olive mill of the type of mola olearia which, like the Roman trapetum, first appeared during the Hellenistic era and spread all over the Graeco-Roman Mediterranean, surviving until the 20th century 1 .

Experiments on Possible Stone Age Glue Types

Werner Pfeifer and
Marco Claußen (DE)
These experiments cover the making and testing of several possible glue types that might have been used in the hunter and gatherer period of the European Stone Age. Glue types produced in these experiments are: 1. Birch bark tar and pitch, 2. Pine wood tar and pitch, 3. Pine resin / wax glue, 4. Pine resin / wax / charcoal glue, 5. Hide glue and 6. Blue Bell glue...

To Reconstruct a Sacrificial Site

Egil Josefson and
Jan Olofsson (SE)

The site

Eketorp fort on southern Öland is a prehistoric ring fort excavated between 1964 and 1974. The excavations showed that the first fort on this location was built in the fourth century AD (Eketorp I). About one hundred years later, it was torn down and then re-built on the same spot. The new fifth-century ring fort (Eketorp II) served as a fortified farmers’ settlement for about 250 years until it was abandoned in the late seventh century (Borg, Näsman, & Wegraeus 1976).