Table (2) Lunar month and terrestrial day

**Period:** Lunar Month T

**Siderial:** 27.321661 days = 655.71986 hours

**Synodic:** 29.53059 days

**Period:** Terrestrial day t

**Siderial:** 23 h, 56 min 4.0906 sec = 86164.0906 sec

**Synodic:** 24 hours = 86400 sec

The aim of this work is to determine the value of the greatest speed mentioned in the following relativistic Quranic verses. In these verses the sideral system should be used for both the lunar month and the terrestrial day as accurate measured periods (with respect to a distant apparently fixed star).

A New Relation in the Earth-Moon System: The length of the moons’ orbit L and the time t of one terrestrial day are correlated in a marvelous Quranic verse which describes a universal constant velocity of a certain cosmic affair as follows:

“GOD rules the cosmic affair from the heavens to the earth. Then this affair travels, to Him (i.e. through the whole universe) in one day, where the measure is one thousand years of your reckoning”(32:5)

The Quranic expression “of your reckoning” leaves no doubt as to our understanding of the year as the lunar year.

The verse begins with a reference to a certain “cosmic affair” which GOD creates and commands. This affair travels, permanently through the whole universe between the heavens and the Earth, so speedily that it crosses in ONE DAY a maximum distance in space equivalent to that which the moon passes during ONE THOUSAND LUNAR YEAR (i.e. during 12000 Sidereal months). The question which pause.; itself now is: what could this cosmic affair be? and what is its greatest velocity as expressed in this Quranic equation?.

To answer this question. The above Quranic verse has been understood** in terms of the following equation:

Distance crossed in vacuum by the universal cosmic affair in Osle sidereal day = length of 12000 revolutions of the moon around the earth.

.:. Ct = 12000 L .

where:

C is the velocity of the cosmic affair, t is the time interval of one terrestrial sidereal day defined as the time of one rotation of the earth. about its axis (relative to the stars). i.e. 23 hr, 56 min, 4.0906 sec = 86164.0906sec. )

L is the inertial distance which the moon covers in c-o revolution around the earth during one sidereal month i.e. L is the net length of the moon’s orbit due to its own geocentric motion, without the interference of its spiral motion caused by the earth’s revolution around the sun, i.e. _ is the lunar orbit length excluding the effect of the solar gravitational field on the measured value.

Let V is the measured average orbital velocity of the moon deduced from the average radius R of the lunar geocentric orbit as measured from an orbiting earth during its heliocentric motion)

.:. V=2 Pi *R/T…(2)

substituting R = 384264 km and T = the siderial lunar month = 655.71986 hr

.:. V= (2X3.l4l6x384264 )/ 655.71986= 3682.07 km/hr

This value is given in all text books of astronomy and is accepted by NASA.

Let @ (Fig. 1) is the angle traveled by the earth moon system around the sun during one sidereal month of period 27.321661 days. We can calculate @ if we take into consideration the period (365.25636 days of one heliocentric revolution (1 year) of the earth-moon system (Fig.l).

@ = 27.321661*360/365.25636= 26,92848

Thus @ is a characteristic constant of this system depending on uniform periods of the month and the year.

Since the presence of the sun changes the geometrical properties of space and time , we must screen out its gravitational effect on the earth moon system according to the validity condition of the second postulate of special relativity, i.e. we must only consider the lunar geocentric motion without the heliocentric motion of the earth-moon system. Thus a velocity component VO=V cosO representing the net orbital velocity of the moon as shown in fig. (1) is introduced for calculating the net length L of the lunar orbit assuming a stationary earth.

.:. L = V cos @ T … (3)

From equation (1) and (3) we get a new Quranic relation for the earth moon system:

Ct= 12000 V cos @ T…(4)

.:. C =12000 V cos @ T/t…(5)

substituting the sidereal values of the periods t and T from table (2), the NASA value of the measured orbital lunar velocity V = 3682.07 km/hr., and the calculated value of cos@ = cos 26.92848 = 0.89157, we get the velocity of the cosmic affair from eq. 5 as expressed in the Holy Quran.

C=12000 x 3682.07 x 0.89157 x 655.71986/86164.0906

.:. C = 299792.5 km/s

Referring to table (1) and the international value of C = 299792.458 km/s we find an extremely marvelous agreement. Thus we conclude that the cosmic affair, mentioned in the previous Quranic verse, is identical to LIGHT and all similar cosmic affairs traveling in vacuum with this maximum speed such as: all types of electro magnetic waves propagating between the heavens and the earth, the expected Gravitational waves spreading all over the universe, and all particles traveling in this cosmic greatest speed such as neutrinos.