Hello

The following scientific website http://www.speed-light.info/speed_of...2000.htm#sub_2

claims that a religious Scripture has foreknolewdged the value of lightspeed.

(don't put this topic into pseudoscience thread, for I'd only like to discuss the

scientific reasoning in that website, I don't mind its religious and spiritual aspects).

It wants to prove that the distance travelled by theMoon(around the Earth) in1,000 lunar years(according to lunar-based calendars)

is the same as that oflighttravelled in24 hours.

To calculate lunar distance in 1 000 lunar years:

they isolate Moon-Earth system from Sun gravitation

In this case, Earth system doesn't revolve.

And Moon synodic period become equals to its sideral period

(thus 1 lunar month becomes=1 sideral period=27days)

their justifications: The Moon moving around the Earth and around the Sun as well, we cannot take the Earth as a inertial frame of reference, according to the special relativity. Otherwise, the distance calculated would be greater than light distance in 24h. this is why we must isolate Moon-earth system from Sun's gravity for he calculations of Moon's distance.

?What about Moon's speed

As we can see, a rotation of Earth-Moon system around the Sun for one synodic month is equivalent to an arc of 27° of the terrestrial orbit around the Sun. This angle (27°) is the same as the angular difference between 1 lunar sideral month and 1 lunar synodic month according to Earth frame of reference.

The vector "E" (beginning from the Moon) perpendicular to the segment Earth-Sun points to a different direction every synodic month, its module represents the actual Moon's speed (3680km/h)

Thus from this "triangle" of vectors, can they calculate mean Moon's speed E' in isolated Earth-Moon system:

E=square root [ (E sin phi)² + (E')² ]

thus E'= E * cosine phi

= current Moon's speed * cosine phi

= 3680km/hour * cosine 27°

E'=3279 km/hour

So without Sun's gravitationnal influence on Earth-Moon system, would Moon revolve around the Earth at 3279 km/hour ?

Could you tell me if their reasonings are right?[/u]