hey guys my project is that i need to build a model that will press a switch( which will turn off the light) itself after exactly 15 minutes...it has to be resettable, meaning that we should be able to use it again and again whenever we want...basically everytime we switch on the light, the model should press that button in exactly 15 minutes which will switch off the light..this is basically to save electricity in case someone leaves a room with the lights on, so that the light gets turned off after 15 minutes by itself, so no waste, u see? please help...but keep in mind this project can not use electrical equipment, batteries or anything of that kind...it has to be plain mechanics..basically i need help in making something move or jerk suddenly so as to press the button,...IN A TIMED PERIOD (here its 15 minutes)...i really dont understand how im supposed to make sure a movement happens in 15 minutes exatly!! please help!!
HELP!! PHYSICS PROJECT!!?
- Thread starter Appa
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