Tirohia te wāhanga i raro nei, kātahi ka whakautu i te pātai i muri mai i te reo kotahi me te wāhanga:  Passage: Ko te pūtau Grove te puna mana pai o te punaha waea waea a Amerika i te wa o te 1840 <unk> 1860 na te mea he nui te putanga o tenei wa me te ngaohiko teitei ake i te pūtau Daniell o mua (i te 1.9 volts me te 1.1 volts, respectively).  Pātai: He aha i kōwhiria ai te pūtau o Grove i runga i te pūtau o Daniell mō ngā pūnaha waea?
whakaekea te reira i te putanga o nāianei tiketike, me te ngaohiko teitei