[en] The Prancing Pony > The Lord of the Rings

The Hobbit Trilogy

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LordDainIronfoot:
So let's look it more engineering way !The Ballistas Arrows may have some sort of cutings and shape changes that combined with the speed and air current make the rotate and those chains or something are unleashed by the current and begin rotate WITH the Arrow itself! :-) I do not know all the proper English words to explain it more clearly but I hope you understood what I mean! :-)

CragLord:
Arrow shape is responsible for different mass distibution and start of rotation movement. Arrows are fired in translation way at first place ofc.
Same like windlance arrows, they are fired by transation but they rotate stronly after some time, that is because their shape ofc. :)

From physic way, problem is not arrow rotation, but those chains on arrow back. :P Those rotating chain would slow and crush ballista's arrow too soon. :)

Gandalf The Gray:

--- Zitat ---Elrond: alive in first age
Galadriel: alive in first age
Celeborn: alive in first age
Glorfindel: alive in first age
--- Ende Zitat ---

they are not blacksmithers 

Der Dunkle König:
You say that it is possible because of their mass distribution or shape, but I want to know how exactly it works. I doubt that it is possible at all.

And I think I haven't said it yet, but I agree with korner, I think these ballistas are quite stupid. I don't believe that they could work in any way (, and i agree with Gnomi about physics in Middle-earth,) and I don't think that they are usefull at all. Why didn't the dwarves use shields against the arrows? If they really wanted to arrive quickly at the Erebor, why did they bother with bringing the ballistas all the way from the Iron hills? I think Peter Jacksons just wanted to put another special effect into the movie, of which is already has way to much, just because it might look cool, without deliberating if it really makes sense.

CragLord:
Moment theorem on google.  :)

Because of shape there is distance between force attacking points on arrow. This causes momentum of those forces, whic causes rotation.
P.S. I am graduated student of physics btw. :P :P :P What you what to believe that is your decision. :P And send some regards to korner when you see him on german part of forum.
Cheers bro

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