Ancient Greece and wine have been uncovered by archaeologists, demonstrating the scope of Greek influence. A shipwreck discovered off the coast of southern France included nearly 10,000 amphoras containing nearly of Greek wine, presumably destined for trade up the Rhône and Saône rivers into Gaul. It is estimated that the Greeks shipped nearly 10 million liters of wine into Gaul each year through Massalia. In 1929, the discovery of the Vix Grave in Burgundy included several artifacts demonstrating the strong ties between Greek wine traders and local Celtic villagers. The most notable of these was a large Greek-made krater, designed to hold over of
Leyden jar used in demonstrations. The jar is constructed out of a glass cup nested between two fairly snugly fitting metal cups. When the jar is charged with a high voltage and carefully dismantled, it is discovered that all the parts may be freely handled without discharging the jar. If the pieces are re-assembled, a large spark may still be obtained from it. This demonstration appears to suggest that capacitors store their charge inside their dielectric. This theory was taught throughout the 1800s. However, this phenomenon is a special effect caused by the high voltage on the Leyden jar. In the dissectible