7 янв 2000 г. до нашей эры - Shaduf was invented
Описание:
Shaduf was a hand operated system of lifting water. People in Egypt and India still use it today.The shaduf is made of a horizontal beam. It has a bucket or skin on one end to hold the water in it and a counterpart a little heavier on the other end. It is set up like a see saw.Добавлено на ленту времени:
Дата:
7 янв 2000 г. до нашей эры
Сейчас
~ 4028 г назад