From Drebbels wiki
It's still a challenge to trace Drebbel`s acts and paths.
Actually there are several particular questions
intriguing us and other Drebbologists.
What did the Perpetuum Mobile look like?
How many copies of the PM did Drebbel make?
Rich SantaColoma wants to build a new model based
and others. Read James Bradburne's text.
What type of contact did John Winthrop Jr. have
with Cornelis Drebbel and his "sonnes-in-law",
Abraham and John Siebert Kuffler? Read more here.
Are the red stains discovered by Rich SantaColoma
on the Drebbel book that Kuffler gave to Winthrop
caused by cochenille red? Or is it just red wine or ink?
The Hortus Palatinus. Did Cornelis Drebbel visit
Heidelberg on his return trip from Prague to London?
Did he then meet and / or collaborate with the
De Caus brothers? Click here for an argumentation.