Davinci Valves 2000 YEAR OLD DESIGN OF FOOT POWERED PUMPS (Read in 1 minute)In the old days also water wheels and manual labor were needed to lift water from wells, rivers, canals and ponds to agricultural land....
Davinci Valves CHINESE ANCIENT INVENTIONS FOR WATER RECOLECTION: JIEGAO AND HÚDOU (Read in 1 minute)CHINESE ANCIENT INVENTIONS FOR WATER RECOLECTION: JIEGAO AND HÚDOU The shaduf in China is known as Jiégāo and was locally called Diaogan,...
Davinci Valves WIE TEC 2020 SHANGHAI CHINAIn spite of the challenges posed by the COVID-19 pandemic, many companies presented their products at WieTec 2020 in Shanghai with the...
Davinci Valves THE ANCIENT MAYA CHULTUNS FOR WATER STORAGE (Read in 1 minute)THE ANCIENT MAYA CHULTUNS FOR WATER STORAGE (Read in 1 minute) The Ancient Maya Population in the region faced the problem of a lack of...