After spinning for two days and two nights, the silkworm will have produced a single thread measuring up to 5,000 feet [1,500 m] in length. That is about four times the height of a tall skyscraper!
Setelah memintal selama dua hari dua malam, ulat sutra menghasilkan benang yang panjangnya sampai 1.500 meter, kira - kira sama dengan empat kali tinggi gedung pencakar langit!