1/2 bir bir bir ah oo kaashawiito ah oo muraayad dhalaalaya leh
Astaamaha
1. Gacan-gacmeedka Magnetic: Gacan-gacmeedku waxa uu leeyahay hawl birlab (magnetic) ah oo si adag ugu xajisa baalka oo ka ilaalisa in uu ka dhaco inta lagu jiro hawsha.
2. Dahaarka dhalaalaya muraayadda: Dharka gacmaha ayaa lagu dahaadhay muraayad dhalaalaya oo dhalaalaya, kaas oo bixiya caabbinta daxalka iyo dusha siman, hagaajinta adkeysiga iyo nadiifinta fudud.
3. 1/2-inji Cabbirka Darawalnimada: Qalabka gacanta waxaa loogu talagalay in lagu dejiyo 1/2-inji qalabka wadista, taas oo ka dhigaysa mid ku habboon codsiyada culus ee u baahan qulqulka sare.
4. Dhisme waara: Gacan-ku-seedka gacantu waxa uu ka samaysan yahay qalab tayo sare leh si loo hubiyo xoogga iyo nolosha adeegga ee goobaha shaqada ee adag.
5. Injineerka saxda ah: Gacmaha daloolka gacmaha ayaa loo farsameeyay si ay u bixiyaan taam sax ah oo si adag u xidha xidhxidhaha, yaraynta halista boolalku inay burburaan ama dhaawacmaan.