This is Bandhu's first successful steam engine. Click on image to see it larger.

Click here to download a Quicktime movie of this contraption in operation,

Approximate Download Times
56K = 4-5 mins
Cable = 0-1 min
DSL = 0=1 min

Engine #2 was originally made to run on steam, but has been converted to compressed air operation. Note the "governor" spinning horizontally, which helps regulate the speed.

Click here to download a Quicktime movie of this contraption in operation

Approximate Download Times
56K = 4-5 mins
Cable = 0-1 min
DSL = 0=1 min

Engine #3 features a condensor and pump to collect part of the exhausted steam and circulate it back into the boiler.

Click here to download a Quicktime movie of this contraption in operation

Approximate Download Times
56K = 4-5 mins
Cable = 0-1 min
DSL = 0=1 min

This marble run operates with a hand crank. Marbles are elevated up the central spiral, then run down one of two tracks. An automatic gate makes the marbles take turns on the downward tracks, while a mechanized lever feeds the marbles into the elevator one at a time.

Click here to download a Quicktime movie of this contraption in operation

Approximate Download Times
56K = 4-5 mins
Cable = 0-1 min
DSL = 0=1 min