1) The document discusses how the speed of light (C) can be calculated based on information from the Holy Quran that was sent down 14 centuries ago. 2) The calculation relies on a verse that states "the measure of a day is 1000 years" and uses the moon's orbital speed and period to determine C. 3) The calculated value of C using this method matches very closely with modern measurements of the speed of light from scientific institutions, providing evidence of the accuracy of the Quran.