| Do Physical Laws Make
This chapter is part of a work in progress and is subject to continual revision. Date of last revision: March 16, 2004. The chapter was originally published in NetFuture #155. Copyright 2004 The Nature Institute. All rights reserved. You may freely redistribute this chapter for noncommercial purposes only.
I illustrated this by describing what happens when we release a leaf in a vacuum chamber. The leaf now "drops like a rock". That is, we get a trajectory that seems to be little more than the graphic display of a mathematical expression we call t