Escape Pod 770: The First Trebuchet on Mars
Author : Marie Vibbert Narrator : M. Darusha Wehm Host : Tina Connolly Audio Producer : Summer Brooks Discuss on Forums This story first appeared in Analog (August 2017) The First Trebuchet on Mars by Marie Vibbert If you come to Mars you need to know that in the twelfth century a French engineer named […] Source
Quasar links out; the story lives on Escape Pod, where the author gets the click.