#40Death of ArchimedesArchimedes’s emblematic death makes sense psychologically and embodies a rich historical p... more15 Jul 202526 MINS26:2115 Jul 2025
#39Torricelli’s trumpet is not counterintuitiveThere is nothing counterintuitive about an infinite shape with finite volume, contrary to ... more30 Dec 202456 MINS56:3930 Dec 2024
#38Did Copernicus steal ideas from Islamic astronomers?Copernicus’s planetary models contain elements also found in the works of late medieval Is... more29 Nov 20231 HR 27 MINS1:27:0429 Nov 2023
#37Operational Einstein: constructivist principles of special relativityEinstein’s theory of special relativity defines time and space operationally, that is to s... more23 Jul 20231 HR 16 MINS1:16:3823 Jul 2023
#36Review of Netz’s New History of Greek MathematicsReviel Netz’s New History of Greek Mathematics contains a number of factual errors, both m... more11 Oct 202252 MINS52:0411 Oct 2022
#35The “universal grammar” of space: what geometry is innate?Geometry might be innate in the same way as language. There are many languages, each of wh... more20 May 202232 MINS32:2220 May 2022
#34“Repugnant to the nature of a straight line”: Non-Euclidean geometryThe discovery of non-Euclidean geometry in the 19th century radically undermined tradition... more20 Feb 202230 MINS30:4020 Feb 2022
#33Rationalism 2.0: Kant’s philosophy of geometryKant developed a philosophy of geometry that explained how geometry can be both knowable i... more17 Nov 202130 MINS30:0017 Nov 2021
#32Rationalism versus empiricismRationalism says mathematical knowledge comes from within, from pure thought; empiricism t... more18 Sep 202143 MINS43:5018 Sep 2021
#31Cultural reception of geometry in early modern EuropeEuclid inspired Gothic architecture and taught Renaissance painters how to create depth an... more10 Jul 202133 MINS33:4710 Jul 2021
#30Maker’s knowledge: early modern philosophical interpretations of geometryPhilosophical movements in the 17th century tried to mimic the geometrical method of the a... more10 May 202149 MINS49:2910 May 2021
#29“Let it have been drawn”: the role of diagrams in geometryThe use of diagrams in geometry raise questions about the place of the physical, the senso... more10 Mar 202151 MINS51:1210 Mar 2021
#28Why construct?Euclid spends a lot of time in the Elements constructing figures with his ubiquitous ruler... more20 Jan 20211 HR 18 MINS1:18:0120 Jan 2021
#27Created equal: Euclid’s Postulates 1-4The etymology of the term “postulate” suggests that Euclid’s axioms were once questioned. ... more10 Dec 202041 MINS41:0010 Dec 2020
#26That which has no part: Euclid’s definitionsEuclid’s definitions of point, line, and straightness allow a range of mathematical and ph... more03 Nov 202043 MINS43:3303 Nov 2020
#25What makes a good axiom?How should axioms be justified? By appeal to intuition, or sensory perception? Or are axio... more04 Oct 202035 MINS35:2104 Oct 2020
#24Consequentia mirabilis: the dream of reduction to logicEuclid’s Elements, read backwards, reduces complex truths to simpler ones, such as the Pyt... more08 Sep 202035 MINS35:5008 Sep 2020
#23Read Euclid backwards: history and purpose of Pythagorean TheoremThe Pythagorean Theorem might have been used in antiquity to build the pyramids, dig tunne... more30 Jul 202041 MINS41:3730 Jul 2020
#22Singing Euclid: the oral character of Greek geometryGreek geometry is written in a style adapted to oral teaching. Mathematicians memorised th... more21 Jun 202040 MINS40:1021 Jun 2020
#21First proofs: Thales and the beginnings of geometryProof-oriented geometry began with Thales. The theorems attributed to him encapsulate two ... more15 May 202042 MINS42:2715 May 2020