Sumaya jateminɛnan bɛ baara kɛ cogo di? A bɛɛ bɛ daminɛ ni sensɛri ye. A tɛ i n’a fɔ funteni hakɛ jateminɛnan min falen bɛ ji la ani funteni hakɛ jateminɛnan min bɛ kɛ ni nɛgɛ bi-metal ye, nizɛri funteni jateminɛnan mago bɛ sensɛri la. O sensɛriw bɛɛ bɛ tension, current, walima resis...