ポスト
4000年前の中国の上水道 導水管が陶器なので錆びない
メニューを開くS.L. Kanthan@Kanthan2030
4,000 years ago, Chinese had ceramic water pipes! 😳 These pipes were found in the archaeological site of Pingliangtai on Central Plains of China. (Don’t ask me where that is). How advanced did the people have to be to understand the need for clean water, and not only invent…