Algodoo

From the 60 RPM input it outputs 0.001667 RPM.
The not-so red part outputs 0.1 RPM, or 10 minutes per rotation,
or 10 MPR. The gear ratio is 600:1.
The ultimate red part is so slow, it will make a full rotation
once every 4 days and 4 hours! I will experement with cyclodal gears.

What is possibe?
1B:1? 1T:1? Maybe even a Googol:1? And how compact?