Physics
The basic design principle is that bending causes more stress in material near the edge or back of the blade than material in the middle, due to leverage. The diagram at right shows stress distribution in an ideal blade with a rectangular section, with only a small amount of normal stress present at the neutral axis. Fullers remove material from near this neutral axis, which is closer to the blade's spine if only one edge is sharpened (see photo above). This yields stiffer blades of a given weight, or lighter blades of a given stiffness. The same principle is taken to an extreme in I-beam's. Some contend that this concept was borrowed into architecture from weapons design.
Read more about this topic: Fuller (weapon)
Famous quotes containing the word physics:
“The labor we delight in physics pain.”
—William Shakespeare (1564–1616)
“... it is as true in morals as in physics that all force is imperishable; therefore the consequences of a human action never cease.”
—Tennessee Claflin (1846–1923)
“We must be physicists in order ... to be creative since so far codes of values and ideals have been constructed in ignorance of physics or even in contradiction to physics.”
—Friedrich Nietzsche (1844–1900)