![A lantern slideshows four overlapping illustrations of the Earth depicting its tilt at different time periods in the past, present and future. Dates represented are 13000 BC, 5544 BC, 1921 AD, 2296AD. Handwritten in blue ink at bottom left corner of plate is the text 'G53 CLW [illegible] Aug '22'.](https://publicseminar.org/wp-content/uploads/2026/02/Wragge_Earth-300x293.jpg)
Public Seminar is a journal of ideas and debate published by the Public Seminar Publishing Initiative at The New School. Our free, nonprofit publication is made possible by the support of The New School and the generosity of our readers.
Public Seminar is a journal of ideas and debate published by the Public Seminar Publishing Initiative at The New School. Our free, nonprofit publication is made possible by the support of The New School and the generosity of our readers.