Is there a way to harness frictional or heat energy?
Heat energy is harnessed in power plants and heat engines all the time. Frictional energy can also be harnessed, but there needs to be a reliable and large source of it for it to be worth it.
Moderator's note: thread moved from General Discussion to General Physics.
Please try to choose the most appropriate area of the forums when starting a new thread.
Absolutely, a heat engine can do just that.
Separate names with a comma.