How would you explain to a pigmy in the Equatorial Rain Forest – who has never seen an aeroplane – what an aeroplane is? No doubt you would use a picture, e.g. saying that an aeroplane is like a large bird, but made of metal, it cannot land on trees, and drinks petrol, etc.
Namna gani unaweza kufasiria mumbute anayeishi ndani ya mwitu wa equator – mwenye hayaonaka gari ya mabawa na hajui kama ni nini? Hakika inaomba kutumia picha, kwa mfano kusema kama gari ya mabawa ni ndege kubwa, lakini ya chuma, yenye haiwezi kutua juu ja miti, na inakunywa mafuta na kazalika.