The constant air pressure needed to play the hydraulis was supplied by a ?

Generally spontaneous human combustion is something that still bewilders some, human combustion happens very rarely and doesn't affect the surrounding areas, so unless you want to set your self on fire, human combustion will remain spontaneous and very rare.

True! true !

Heyaas we all know that history is the most important without it we cant solve anything. i had never read any history thats why i dunno know about any past culture.we can read it via wikipedia. u

The answer is gladiators