Cornelis Jacobszoon Drebbel was a Dutch engineer and inventor. He was the builder of the first operational submarine in 1620 and an innovator who contributed to the development of measurement and control systems, optics and chemistry.
"Perpetuum mobile" clock by Drebbel
First navigable submarine
Reconstruction of the Drebbel, Richmond upon Thames. In 2002, the British boatbuilder Mark Edwards built a wooden submarine based on the original version by Drebbel. It was shown in the BBC TV programme Building the Impossible in 2002.
A thermostat is a regulating device component which senses the temperature of a physical system and performs actions so that the system's temperature is maintained near a desired setpoint.
Honeywell's "The Round" model T87 thermostat, one of which is in the collection of the Smithsonian.
Next Generation Lux Products TX9600TS Universal 7-Day Programmable Touch Screen Thermostat.
A Honeywell electronic thermostat in a retail store