Windows that self-close to regulate temperature
I like letting the outside air blow through my apartment, but I also like the temperature and humidity to be in a good range. So I go around opening all the windows when it's a good temperature outside, and then forgetting to close them later. I wish windows could be programmed to open themselves automatically to regulate the temperature. I bet this could save a lot of money on heating and air conditioning, while allowing fresh air from outside to come in. I'm imagining a bunch of slats of glass that can rotate like Venetian blinds that are controlled by bimetallic strips or something :) Maybe there would be two layers for better insulation, and one layer could open to allow more heat exchange but not air flow, and both could open at the same time to allow air to flow.
For modifying an already-existing window, it would have to install motors and stuff. Anyone have any ideas about how something like this could be made?