See the book <i>Ancient Inventions</i> for some descriptions of stuff the ancients had.<p><a href="http:&#x2F;&#x2F;www.amazon.com&#x2F;gp&#x2F;aw&#x2F;d&#x2F;0345401026&#x2F;" rel="nofollow">http:&#x2F;&#x2F;www.amazon.com&#x2F;gp&#x2F;aw&#x2F;d&#x2F;0345401026&#x2F;</a>