Kuyambitsa khola la nkhuku la H, yankho labwino kwambiri paulimi wasayansi, wokhala ndi zida zodziwikiratu, kulimba, chitetezo chambiri komanso kudalirika.Izi zapangidwa kuti zizipereka malo abwino komanso achilengedwe kwa nkhuku, zomwe zimawathandiza kukhala athanzi komanso opanda nkhawa.