For my engineering class we have to improve something that has already been invented. Or something that needs to be invented.
I already have a few ideas but I would like to hear other people’s opinions.
It would also help if the thing that is being improved is “green.” Green as in helping the environment. i.e. a solar powered roof or something. It doesn’t have to be as extravagant as that though.

All feedback is appreciated !!

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