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22/09/2023

Al-Biruni: The forgotten genius who measured the Earth

Al-Biruni (about 1,000 years ago) measured📏📐 the circumference of the Earth🌍 with an accuracy of 99.7% compared to today’s accepted value.

Al-Biruni was a Persian polymath who lived from 973 to 1048. He was a scholar of many fields, including astronomy, mathematics, geography, physics, and history.

In 1030, al-Biruni used trigonometry to measure the circumference of the Earth. His estimate was 6339.6 kilometers, which is within 0.3% of the modern accepted value of 6378.1 kilometers.

Al-Biruni's method was based on the principle that the Earth's curvature causes the horizon to appear lower from a mountaintop than it does from sea level. He measured the angle between the horizon and a plumb line at two different locations, and used this information to calculate the Earth's radius.

Al-Biruni's measurement of the Earth's circumference was one of the most accurate of its time. It was not surpassed until the 17th century, when the French mathematician and astronomer Jean Picard used a more precise method to measure the Earth's circumference.

07/09/2023

01/09/2023

24/08/2023

Father* of robotics : ISMAIL AL-JAZARI (1136–1206)

Ismail Al-Jazari was a polymath: a scholar, inventor, mechanical engineer, artisan, artist, and mathematician from the Artuqid Dynasty of Jazira in Mesopotamia. ‘The Book of Knowledge of Ingenious Mechanical Devices’ is a medieval Arabic book written by Ismail al-Jazari in the 12th century. It describes over fifty mechanical devices and automata, including clocks, water-raising machines, musical automatons, and humanoid robots. Al-Jazari provides detailed instructions for constructing each device and includes anecdotes and historical references. The book had a significant influence on the development of European clockmaking and automata, offering insights into daily life and technological innovations in the Islamic world during the medieval period. It’s his book that influenced key concepts of modern-day robotics.

[*] Jorge Elices (30 July 2020). "Ismail al-Jazari, the Muslim inventor whom some call the 'Father of Robotics'". National Geographic. National Geographic Society. Retrieved 17 February 2023.

24/08/2023

It is also mentionmed in the same Hadith, "If you know any portion of the Qur'an, read it or else say:
Alhamdu lillah, Allahu Akbar and La ilaha ill-Allah."
وَفِيهَا 1‏ { فَإِنْ كَانَ مَعَكَ قُرْآنٌ فَاقْرَأْ وَإِلَّا فَاحْمَدِ اَللَّهَ , وَكَبِّرْهُ , وهلِّلْهُ }