>> There is very little EE stuff in a toilet! > Note: here on the piclist the EE tag stands for everything > engineering > not electrical engineering so problems with toilet > mechanisms do just > about fit under the EE tag. Challenge: Just try and make a toilet cistern with existing functionality without any engineering. ie Every piece of functionality present is engineering based. You MAY be able to persuade one to grow as a biological object - using "only" bio engineering :-). Russell -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist