I'm curious about the physics of "projectile" spells, as in the type that shoot an actual magic bolt (like Stupefy and Avada Kedavra), and I think this might be an interesting topic to discuss.
First of all, I was wondering, at what speed do "projectile" spells travel? Remember, they seem to go slow enough for people to duck and dodge them. Also, can the speed of the spell be increased by how loud you shout the incantation, or how hard you flick your wrist (at the possible expense of accuracy)?
Also, what effect does gravity have on spells? Do spells like Stupefy follow a parabolic path, or do they go perfectly straight until they hit something? In a similar vein what is the range of "projectile" spells? Is it unlimited until they meet an obstruction, or do they dissipate and loose force with increasing range?
Other questions come to mind: Do spells have mass? Can the trajectory of spells be altered by high winds and rain?
Tim the Enchanter