Scientists who worked on qibla determination
Abū’l-‘Abbās al-Faḍl ibn Ḥātim al-Nairīzī (Arabic: أبو العباس الفضل بن حاتم النيريزي, Latin: Anaritius, Nazirius, c. 865–922) was a Persian mathematician and astronomer from Nayriz, Fars Province, Iran. He flourished under al-Mu'tadid, Caliph from 892 to 902, and compiled astronomical tables, writing a book for al-Mu'tadid on atmospheric phenomena. Nayrizi wrote commentaries on Ptolemy and Euclid. The latter were translated by Gerard of Cremona. Nairizi used the so-called umbra (versa), the equivalent to the tangent, as a genuine trigonometric line (but he was anticipated in this by al-Marwazi). He wrote a treatise on the spherical astrolabe, which is very elaborate and seems to be the best Persian work on the subject. It is divided into four books: 1. * Historical and critical introduction. 2. * Description of the spherical astrolabe; its superiority over plane astrolabes and all other astronomical instruments. 3. * Applications. * Applications. He gave a proof of the Pythagorean theorem using the Pythagorean tiling. Ibn al-Nadim mentions Nayrizi as a distinguished astronomer with eight works by him listed in his book al-Fihrist. (Wikipedia).
From playlist Freedom
Origins of ISIS (Islamic State of Iraq and Syria)
Support CaspianReport through Patreon: https://www.patreon.com/CaspianReport In the aftermath of the invasion of Iraq in 2003, Saddam Hussein, the man who ruled the country with an iron fist, was captured. He was then executed by the new Iraqi government. However despite what most people
From playlist History
Origins of the crisis in Yemen
Support CaspianReport through Patreon: https://www.patreon.com/CaspianReport In a previous CaspianReport, released back in 2011, we argued about the likelihood of a civil war in Yemen and that the Iranian back Houthi rebellion would trigger a new front in the ongoing Saudi-Iranian cold wa
From playlist Geopolitics
Branches of Islam & Family Tree of Shia Imams
Buy the Asian Royal Family Trees chart: https://usefulcharts.com/collections/royal-family-trees/products/asian-royal-family-trees Abbasid Family Tree https://www.youtube.com/watch?v=B5mCvrBsOV0 CREDITS: Script by Syawish Rehman Narration by Matt Baker Audio editing by Ali Shahwaiz Intro
From playlist Religious Studies
Why is it so hard to cure ALS? - Fernando G. Vieira
Check out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/why-is-it-so-hard-to-cure-als-fernando-vieira Amyotrophic Lateral Sclerosis (ALS), also called motor neuron disease and Lou Gehrig’s Disease, affects about two out of every 100,000 peop
From playlist New TED-Ed Originals
AlphaFold: The making of a scientific breakthrough
The inside story of the DeepMind team of scientists and engineers who created AlphaFold, an AI system that is recognised as a solution to "protein folding", a grand scientific challenge for more than 50 years. Find out more: deepmind.com/alphafold Protein references: TBP = To be publ
From playlist The story of AlphaFold
Lester Mackey, Stanford University - Stanford Big Data 2015
Bringing together thought leaders in large-scale data analysis and technology to transform the way we diagnose, treat and prevent disease. Visit our website at http://bigdata.stanford.edu/.
From playlist Big Data in Biomedicine Conference 2015
Prisoners' dilemma and Nash equilibrium | Microeconomics | Khan Academy
Why two not-so-loyal criminals would want to snitch each other out Watch the next lesson: https://www.khanacademy.org/economics-finance-domain/microeconomics/nash-equilibrium-tutorial/nash-eq-tutorial/v/more-on-nash-equilibrium?utm_source=YT&utm_medium=Desc&utm_campaign=microeconomics Mi
From playlist Firm behavior and market structure | AP Microeconomics | Khan Academy
More on Nash equilibrium | Game theory and Nash equilibrium | Microeconomics | Khan Academy
Looking more closely at the definition of Nash Equilibrium Watch the next lesson: https://www.khanacademy.org/economics-finance-domain/microeconomics/nash-equilibrium-tutorial/cartels-cheat-tutorial/v/why-parties-to-cartels-cheat?utm_source=YT&utm_medium=Desc&utm_campaign=microeconomics
From playlist Firm behavior and market structure | AP Microeconomics | Khan Academy
"Don't Fear The Spreadsheet" - A Great Story, Really!: Podcast #1584
Weekend Learn Excel from MrExcel Podcasts allow Bill some greater latitude in topic and means. Today, this Special "Learn Excel / Don't Fear The Spreadsheet" Podcast looks at "The Highwaymen" of Florida. NPR [National Public Radio] originally did a story on 'The Highwaymen' [you can find t
From playlist "Don't Fear The Spreadsheet"
Rebuilding a 1,000-Year-Old Humanoid Robot | History Remade with Sabrina
Al-Jazari, one of the greatest inventors during the Golden Age of Islam, developed concepts crucial to devices we still use today. In this episode, Sabrina recreates Al-Jazari's drumming automaton - or drumming robot! #HistoryRemadeWithSabrina Subscribe for more HISTORY: http://histv.co/
From playlist History Remade with Sabrina