Newsgroups: sci.archaeology,sci.anthropology.paleo,sci.math,
alt.alien.visitors,soc.culture.usa,soc.culture.czecho-slovak
The block to be moved serves as a fixed axle for wheels
made out of wooden shoes. The block is pulled by the ropes
wrapped around its middle.
Looking at Kevin's diagram, I had realized that as is, this
method would produce Mechanical
Disadvantage.
Justification
One loop of the pulling rope around the block, which serves
as the spooler, is less than the circumference of the wheel.
Therefore, wrapping the rope around the fixed axle (block)
produces mechanical disadvantage.
Improvement of the method
To regain Mechanical Advantage I
had proposed the
following improvement.
Spooler fits the track below With a track beneath the block,
or any other heavy object, we can add a spooler reaching into
the track. Now, one loop around the spooler has a greater
circumference than the wheels at the ends of the block (axle).
Thus, when using this method, we gain mechanical advantage, .
Of course, by now, the reader realizes that the track in the floor
of the Grand Gallery could in principle serve the same purpose,
as the track in the diagram above.
High Five,
Jiri Mruzek
Oldest image of a horseman? Judge!
http://www.oocities.org/CapeCanaveral/Lab/5586/debate.htm
jirimruzek at shaw dot ca
**************
Science is a team sport - Philosophers coach