Dr. James Bradburne wrote this interesting article analysing Drebbel's Perpetuum Mobile and situating it in its context.
Nederlandstalige '''[[PDF:Going through the Motions NL|versie hier]]'''. https://drebbel.net/Bradburne%20DrebbelPerMobDRAFT2_OK.pdf ---- [[Category:Perpetuum]] [[Category:PDF]][[Language::English| ]][[Year:: 2006| ]][[Published in::London| ]]