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http://craftybot.net/hero.html
http://campus.udayton.edu/~hume/Steam/steam.htm
Original Price: $24.80
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Saved: $20.80
83.9% cheaper
-Hero's Engine is now mainly used as a demonstration for Newton's 3rd Law of Motion- for every action there is an equal and opposite reaction.
-They are sold in science catalogs or they can be made as projects (such as this one)
- materials easy to obtain
- relatively cheap
- thought we could build a working one
Who created it?
Hero of Alexandria
between 0-100 AD
Alexandria in Roman Egypt
- Hero built this as an attempt to complete a plan to open temple doors using fire
-not used in modern times, but it was the basis for future steam engine designs