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# The Speed of Light

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### The Speed of Light

1. 1. This presentation is about howTHE SPEED OF LIGHTTHE SPEED OF ELECTROMAGNETIC WAVE THE HIGHEST SPEED IN THE UNIVERSE That is 299792.5 km/sec. Can be determined / calculated exactly based on The information taken from an old document
2. 2. Perhaps you have ever known that the constant C, or the speedof light that is the highest speed in the universe has beencalculated, measured or determined by the institutions below: • US National Bureau of Standards C = 299792.4574 + 0.0011 km/sec • The British National Physical Laboratory C = 299792.4590 + 0.0008 km/sec • 17th conference on measurements and weight standards ”one metre is the distance reached by the light in vacuum in 1/299792458 sec".
3. 3. But you should know that the constant C can bedetermined / calculated using the information takenfrom a holy book sent down 14 centuries ago..The Noble Qur’an, the holy book of Islam
4. 4. It is told in the Noble Qur’an: ”It is He (ALLAH) who made the sun to be a shinning glory and the moon to be a light (of beauty), and measured out stages for it, that ye might know the number of years and the count (of time)”- (10:5) ”It is He (ALLAH) who created the Night and the Day, and the sun and the moon: All (the celestial bodies) swim along, each in its rounded course“ – (21:33)“He directs the affairs from the heavens to the earth: then it ascends unto Him, on a Day the measure of which is a thousand years of your reckoning” (32:5)
5. 5. Based on verses, mainly the last verse (verse 32:5) it can be concluded that: The distance reached by The affairs in a day is equal toThe distance reached by the moon in 1000 years or 12000 months C . t = 12000 . L where : C = the speed of the Affairs t = time in a day L = the route length of the moon’s trip in one month
6. 6. Many calender systems, has been tested,But only “sidereal month calendar system” produce the value CWhich equal to the value of C based on measurementThere are two month calendar systems:1. Sinodic System, based on virtual apparition of moon’s and sun’s motions from the earth. 1 day = 24 hours 1 month = 29.53059 days 2. Sidereal System, based on relative motion of the moon’s and the sun to the star in universe. 1 day = 23 hours 56 minutes 4.0906 seconds = 86164.0906 seconds 1 month = 27.321661 days
7. 7. Consider the moon’s position after The moon position ! 29.52 days The period time 360o revolution moonto initial position exactlyearth The moon go back = 26.92484o revolution in line between the sun and the earth. This period is called This period in 27.321661 days or 655.71586 hours. “one sinodic moon” And it is called “One sidereal moon” 29.1061o 26.92484oαα
8. 8. Then consider the moon’s route during one sidereal monthThe route is not of a circle like you possibly imagineBut in the form of a curvature with a length of L = v . T L = v. T where: v = the speed of the moon T = moon revolution period 26.92848o α = 27.321661 days 27.321661 days α = 365.25636 days * 360 = 26.92848o o
9. 9. A Note on the speed of moon (v)There are two types of moon’s speed :1. Relative speed to earth which can be calculated with the following formula: ve = 2 . π . R / T where R = radius of moon revolution = 384264 km T = the period of moon’s revolution = 655.71986 hours Hence ve = 2 * 3.14162 * 384264 km / 655.71986 hrs = 3682.07 km/hr 2. Relative speed to star or universe. This is what we need Albert Einstein proposed that this type of speed can be calculated by doing a multiplication of the first with cosine α, so that: v = Ve * Cos α Where α is the angle formed by earth’s revolution during one sidereal month α = 26.92848o
10. 10. Remember !Hence: L = v.T C . t = 12000 . L Remember ! v = ve . Cos α C . t = 12000 . v . T Remember ! C . t = 12000 . ( ve . Cos α ) . T ve = 3682.07 km/hr α = 26.92848o T = 655.71986 hrs t = 86164.0906 secC = 12000 . ve . Cos α . T / tC = 12000 * 3682.07 km/hr * 0.89157 * 655.71986 hrs / 86164.0906 secC = 299792.5 km/sec
11. 11. Compare the C (the speed of the Affairs) as the result of this calculationwith the C (the speed of light) which has been known ! The C calculated C = 299792.5 km/sec The C measured → US National Bureau of Standards C = 299792.4574 + 0.0011 km/sec → The British National C = 299792.4590 + 0.0008 km/sec Physical Laboratory → 17th conference on “One meter is a distance reached by the light in vacuum in 1/299792458 seconds" measurement and weight standard
12. 12. The Noble Qur’an 32: 1-5 In The Name Of Allah, The Source Of Mercy, The Most Merciful Alif Lam Mim. (This is) the revelation of the Book in which there is no doubt, from the Lord of the Worlds Or do they say “he (Mohammed) has forged it ?”, Nay, it is the Truth from thy Lord that thou mayest admonish a people to whom no warner has come before thee : in order that they may be rightly guided.It is Allah Who has created the heavens and the earth, and all between them, in six Days. Then He established Himself on the Throne: Ye have none, besides him, to protect or intercede (for you) . Will ye not then receive admonition ? He directs the affairs from the heavens to the earth: then it ascends unto Him, on a Day the measure of which is a thousand years of your reckoning
13. 13. The conclusion (from the article of Prof Elnaby)“This calculation proved the accuracy and consistency of the constant C resulted from measurement and also shows the truth of the Noble Qur’an as revelation which is proper to be studied with a sharp analysis for the Writer is the Creator of the universe”
14. 14. Reference:Elnaby, M.H., 1990, A New Astronomical Quranic Method for The Determination of The Greatest Speed CFix, John D. 1995, Astronomy, Journey of the Cosmic Frontier, 1st edition, Mosby-Year Book, Inc., St Louis, Missouri
15. 15. Prepared ByHussain FahmyThe End