Members had to accompany the scientists on visits to factories, laboratories, construction sites, farms and hospitals to obtain a clear understanding.
製作人員常得到工廠、實驗室、飼養場、種植場、醫院等地去看個明白，然後才能將所得資料融匯貫通，理出頭緒，再編寫劇本。即使這樣仍不敢保證寫出來的沒有錯，還得商請專家過目、查核。劇本定稿後，開始拍攝外景。