Time Reversal Need Memory

summary: 

Time reversal requires memories of where something was, so it can be undone.

description: 

The look of time reversal is familiar. It requires a linear sequence of ordered events to be played back in exactly the reverse order. Time represents the real numbers, a totally ordered set. This set property grants the ability to run things backwards.

command: 
q_graph -dir vp -out time_reversal -loop 0 -box 5 -command 'q_add_n -5 -5 -5 -5 0.005 0.005 0.005 0.005 1000' -color yellow -command 'q_add_n -5 -5 -5 -5 0.005 0.005 0.005 0.005 1000 | q_conj | q_x_scalar -1' -color green
youtube embed: 
Outside video: 
math
equation: 

q\to q'=-q^*

tags
Physics Tag: 
time reversal
Math Tag: 
conjugates
conjugates
Programming Tag: 
command line quaternions
q_add_n
q_conj
q-x_scalar