How do you plot a four dimensional object on a three dimensional grid?

plot it on a four dimentional grid and remove a dimentionHow do you plot a four dimensional object on a three dimensional grid?
Say for example you have drawn a cube on your grid paper, to plot the 4th dimension all you need to do is plot how the cube changes over a time scaleHow do you plot a four dimensional object on a three dimensional grid?
what is ur definition of the 4th dimension? is it time or inside/outside? Try:


http://www.newton.dep.anl.gov/newton/ask鈥?/a>
is there such thing as 4d? only x,y and z are axes i know of
dont plot...


just explain...