Ode to Newtonian mechanics
22 May 2023(after Sonnet 130)Page 3 model: Solitons
30 October 2020SolitonsChalkdust issue 11 puzzle hunt #3
17 April 2020David Sheard sets the third puzzle. Can you solve it?On the cover: Apollonian packing
17 April 2020David Sheard explores the rich mathematics and history behind the Apollonian packing, and the cover of issue 11