Richard Hachel

2024-02-20 12:58:03 UTC

Eisntein said:

------------------

We arrive at a much more practical determination along the following line

of

thought.

If at the point A of space there is a clock, an observer at A can

determine the

time values of events in the immediate proximity of A by finding the

positions

of the hands which are simultaneous with these events. If there is at the

point B

of space another clock in all respects resembling the one at A, it is

possible for

an observer at B to determine the time values of events in the immediate

neigh-

bourhood of B. But it is not possible without further assumption to

compare,

in respect of time, an event at A with an event at B. We have so far

defined

only an “A time” and a “B time.” We have not defined a common

“time” for

A and B, for the latter cannot be defined at all unless we establish by

definition

that the “time” required by light to travel from A to B equals the

“time” it

requires to travel from B to A. Let a ray of light start at the “A

time” tA from

A towards B, let it at the “B time” tB be reflected at B in the

direction of A,

and arrive again at A at the “A time” t

.

In accordance with definition the two clocks synchronize if

tB − tA = tA − tB.

---------------------

I don't understand anything this man is saying.

Is it me who's a moron or him who was incompetent and didn't understand

anything at all?

R.H.

------------------

We arrive at a much more practical determination along the following line

of

thought.

If at the point A of space there is a clock, an observer at A can

determine the

time values of events in the immediate proximity of A by finding the

positions

of the hands which are simultaneous with these events. If there is at the

point B

of space another clock in all respects resembling the one at A, it is

possible for

an observer at B to determine the time values of events in the immediate

neigh-

bourhood of B. But it is not possible without further assumption to

compare,

in respect of time, an event at A with an event at B. We have so far

defined

only an “A time” and a “B time.” We have not defined a common

“time” for

A and B, for the latter cannot be defined at all unless we establish by

definition

that the “time” required by light to travel from A to B equals the

“time” it

requires to travel from B to A. Let a ray of light start at the “A

time” tA from

A towards B, let it at the “B time” tB be reflected at B in the

direction of A,

and arrive again at A at the “A time” t

.

In accordance with definition the two clocks synchronize if

tB − tA = tA − tB.

---------------------

I don't understand anything this man is saying.

Is it me who's a moron or him who was incompetent and didn't understand

anything at all?

R.H.