I kēia lā e kamaʻilio kākou e pili ana i ka "pepa wela"!Hoʻopili ʻia ke kumumanaʻo o ka pepa wela ma ka pepa maʻamau o ka pauka ʻāpana kumu, ʻo ka haku mele he phenol dye ʻole a i ʻole nā mea acidic ʻē aʻe, i hoʻokaʻawale ʻia e kahi kiʻiʻoniʻoni, ma lalo o nā kūlana wela, hoʻoheheʻe kiʻiʻoniʻoni, pauka hui ʻia o ka kala reactio...
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