Machine with Concrete
This machine was inspired by dreaming about gear ratios and implications of exponential powers.
Each worm/worm gear pair reduces the speed of the motor by 1/50th. Since there are 12 pairs of gears, the final speed reduction is (1/50) to the 12th power! The implications are interesting. With the motor turning at around 200 revolutions per minute, it will take well over two trillion years before the final gear can make but one turn. Consequently, it is possible to do anything at all with the final gear... even embed it in concrete... and the machine will run just fine.
This machine was followed up by a related work- Beholding the Big Bang which has a more modest gear reduction- 13.7 billion years- the estimated age of the universe since the big bang.