Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Ballista
The Ballista is a device for throwing large darts very accurately. The Roman Ballistas threw stones instead of darts.
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Catapult
Catapult from the Roman military system. The Roman army was divided into legions, each of which contained about 6,000 men, although at first the number was much smaller. Each legion was in turn subdivided into ten cohorts. Besides the...
Curated OER
Educational Technology Clearinghouse: Clip Art Etc: Catapulta
Roman catapulta war machine.