Speed of light stated in the Koran.

[kronks]

1400 years ago it was stated in the Quran (Koran, the book of Islam) that angels travel in one day the same distance that the moon travels in 1000 lunar years, that is, 12000 Lunar Orbits / Earth Day. Outside gravitational fields 12000 Lunar Orbits / Earth Day turned out to be the known speed of light!

(a lunar year is a period of twelve lunar months (approximately 354 days)

So that would be in about 660AD

A thousand years later in 1638 Galileo estimated light traveled at least 10 times faster than sound.  

In 1728 James Bradley estimated the speed of light to be 301,000 Km/s, which is not too far off the correct value.

 Moslems (Muslims) believe that angels are low density creatures, and that God created them originally from light. They move at any speed from zero up to the speed of light. It is the angels who carry out God's orders. Those angels take their orders from a Preserved Tablet somewhere in outer space, and not from God's Throne. They commute to and from this Preserved Tablet to get their orders from God. In the following verse, the Quran describes how angels travel when they commute to and from this Tablet. And the speed at which they commute to and from this Tablet turned out to be the known speed of light:

[Quran 32.5] (Allah) Rules the cosmic affair from the heavens to the Earth. Then this affair travels to Him a distance in one day, at a measure of one thousand years of what you count.

It is the angels who carry out these orders (see Arabic wording at footnote [1]). Those people back then measured the distances neither in kilometers nor in miles but rather by how much time they needed to walk. For example, a village two days away meant a distance equivalent to walking for two days; ten days away meant a distance equivalent to walking for ten days... However in this verse the Quran specifies 1000 years of what they counted (not what they walked). Those people back then followed the lunar calendar and counted 12 lunar months each year. These months are related to the moon and not related to the sun. Hence in 1 day the angels will travel a distance of 1000 years of what they counted (the moon). Since this verse is referring to distance, then God is saying that angels travel in one day the same distance that the moon travels in 12000 lunar orbits. 12000 Lunar Orbits/Earth Day = distance/time = rate of motion (speed). However this speed depends on the frame of reference, that is, you could define million different frames and get million different results. But if you want to compare it with the speed of light in local inertial frames then you need to make the comparison in a local inertial frame.

The month for the Arabs was 29.5 Earth days, but Earth (the reference frame) was and still is non-inertial. 299792.458 km/sec is the measured speed of light in local inertial frames. These are different frames. To overcome this discrepancy in frames we are calculating 12000 Lunar Orbits/Earth Day when the geocentric frame is inertial and then comparing it with 299792.458 km/sec.


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So finally we can check the accuracy of this equation in the Quran:

      C t' 12000 L'

The distance traveled by light in one Earth Day = C t' = 299792.458 km/sec x 86170.43114  sec = 25833245358 km

The distance traveled by angels = 12000 L' = 12000 x 3682.8 km/hr x 655.71986 hr x cos(26.92952225) = 25836303825 km

By dividing the two distances we get the ratio of 1.00011839267.

Difference  = 0.01%

www.speed-light.info/measure/speed_of_light_history.htm

So remarkably the Koran knew the speed of light with and error of 0.01% or 1 part in 10,000!!!