Welcome back to The Mathematicians Podcast! This episode introduces our first "John" – John Philoponus, also known as John the Grammarian or John of Alexandria. This Christian theologian, philosopher, and arguably mathematician from 6th-century Egypt is primarily known for his religious doctrine, but we look into the fascinating overlap between mathematics and religion: the nature of infinity. Join us as we explore Philoponus's arguments against the Aristotelian view of an eternal cosmos, his insights into the conservation of momentum and the concept of "initial impetus," and his revolutionary thoughts on the vacuum and fluid drag. We'll trace the historical arguments around infinity from Zeno to Aristotle, Euclid, and Archimedes, showing how Philoponus's ideas shaped both theological orthodoxy and the future of scientific thought. You'll also discover John Philoponus's crucial role in documenting and popularizing the astrolabe, a pivotal scientific instrument of his era. Prepare for an episode that proves how deeply intertwined mathematics, physics, and theological debates were in the ancient world. Keywords: John Philoponus, John the Grammarian, John of Alexandria, infinity, Aristotelian physics, Christian theology, ancient mathematics, history of science, astrolabe, momentum, vacuum, impetus, ancient Egypt, 6th century CE, philosophy of mathematics, cosmology, Unmoved Mover, Theism, Pantheism, Deism, The Mathematicians Podcast. Hashtags:#TheMathematiciansPodcast #HistoryOfMaths #JohnPhiloponus #Infinity #AncientScience #ChristianTheology #Aristotle #Astrolabe #Momentum #Vacuum #PhilosophyOfScience #MathematicalHistory #Podcast #SciencePodcast #AncientEgypt #6thCentury #EarlyScience #MathsAndReligion #Cosmology