he principle of accelerating projectiles by means of torsion was invented by the Greeks at the beginning of the fourth century BC. It was used to hurl bolts and
Celts Against The Gods the Battle Of Delphi
Our best source for the Celtic invasion of Greece in 279 BC is in the second century AD geographer Pausanias’ Description of Greece. In the final book, he describes Phocis, the region in which the oracle at Delphi was located. Much of the book is, th