3000 because it ' s measured in centimeters , silly ! Centi ? As in centum , meaning one hundred ? 3000 cm 100 cmm 30 m . Just what kind of crappy siege weapon are you using and why isn ' t it capable of launching a 90 kg object further than 30 metres ? <| sep |> The greatest creatures in my fantasy world WIP , that are from that world , are definitely the Elementals . The are magical vortexes that poses something akin to sentience , but also manifest as a nearby elemental power . These creatures are primal forces of nature amplified a thousand fold by the world ' s natural magics , which they can metabolize . Depending on the element that they manifest as , they have very different lifestyles and lifespans . Electricity is by far the shortest lived type , but they are also one of the more dangerous , on the short term . Their primal need is to be conducted through things , resulting in a being something like a radial lightningstorm running along at ground level , until it dissipates seconds later and possibly hundreds of miles out . Fire is the next fasted lived and are generally considered to be the most deadly . Their primal need is to feed , to consume fuel and grow . It is all they know and all they do . Unless they drift onto the sea , get pinned against a mountain range , or find an open space with insufficient fuel , they will burn away entire continents . And so on . The only long lived , and thankfully peaceful variety are Earth Elementals . The known world includes a single such elemental , a 400 mile long mountain range in the Elfwood Wilds . Noone would even think of trying to stop one . Biologically speaking , they are the closest thing in the world to the Gods , who come from a different reality . It is the Gods , their artifacts or most probably The Legions of Fire that they manifest that would be the final and utterly horrifically difficult end boss .