Shenhai e fakamoʻoni fakaʻauha
ʻOku maʻu ʻe Nano efu ukamea ha feituʻu lahi, tupu ai ha oxidation vave ʻaupito ʻi he fukahi tahi. ʻOku fakaiku ʻeni ki he vela vave ʻa ia he ʻikai lava ke dissipated lelei.
Naʻe toe talangofuaʻa lahi ange ʻa e vela ʻo e ʻea ʻi he founga oxidation. This ongoing accumulation of heat eventually allows the efu ukamea to ignite spontaneously in the air.