e=mc^2

c is v

apply e=mv^2

if m=0 v of m=c

if m > 0 v of m nerver c

s = infinity

s1 to s2 = 1s

gravity is force because force can changed direction and can decrease s between 2 mass

simple force is charge of + -

free neutron unstable and decay

every matter have mass and charge (+ - 0)

time is all incident no incident is no time

frequency is part of an incident

frequency is change of same s and v in the next round

incident > 0 is frequency > 0 and can use atomic clock

you can make some thing jump from 0 to 1s and 0 to -1s in 1 round is a frequency of jump mass

if you want to change direction of this machine you must make asymmetric of this jump

other question ...

what is age

what control age of individual species ???