Marka haddii, dunida waa mid ka hadlayd ka qeybka teknolojiga. Dynamos waxaa la sameyn karaa in ay ku jiro electrical generators ee ku xiriir ah oo dhan. Waxaan ku yidhaahdeen electric power markii ay ugu yarannayn electromagnetic induction iyo ay ku saabsan permanent magnet ama electromagnet markii ay ku daran magnetic field ee rooda ah. Xogta Dynamos iyo generators carruurta aaduuna waa in dynamos ay ku sameyn karaa armature ee adeeg ah oo uu leh copper wire, markaasuu ku haystayn electricity sababtoo ah armature ee rooda ah. Markii uu si toos ah ku jira current ee electric, wuxuu ku sameyn karaa motor ee electric markii uu ku daran magnetic field ee rooda ah. Motor ee direct current (DC) ee electric ay ku sameyn karaa energy iyo ay ku start kartaa spinning. Fogaanka ah, Dynamos waxaa la sameyn karaa in ay ku jirin energy ee electric ee devices teknolojiyada xiriir ah oo kale oo ku jira light bulbs. Markii aan ku jirin teknolojiya ah, waxay ku jirtay generators carruurta oo ahista ah. Koox daraaleed ah oo dhammaan ku jiran dunida waa mid ka soo jeedin yihiin oo aan u baahan tahay teknolojiya ah carruurta aaduuna ayay ku jiray. Waxayna ahista ah. Maxaa yeelay, educators ayay ku yimid in ay ku sameyn karaa students problems ee dhexeeya ah ee electric generation.