"Buildings designed exclusively on scientific principles will depress their occupants and constrain their creativity.", Robert Evans

Project Outcomes

Find a creativity technique
New creativity technique

Exercise 7: The electric bulbs

There are three switches outside a closed room. There are three lamps inside the room. You can flip the switches as much as you want while the door is closed, but then you must enter just once and determine which switch is connected to which lamp. How can you do it?

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This project has been funded with support from the European Commission. This publication
reflects the views only of the author, and the Commission cannot be held responsible for any
use which may be made of the information contained therein.

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