Kinjal Joshi - Kinjal Hope this helps.

••First link is fron Heron's Fountain:

https://en.wikipedia.org/wiki/Heron%27s_fountain

••Second is the who he was and his background

https://en.wikipedia.org/wiki/Hero_of_Alexandria#:~:text=Hero%20published%20a%20well%2Drecognized,a%20follower%20of%20the%20atomists.

••Third, a description of his work

https://www.historyofinformation.com/detail.php?id=10#:~:text=Among%20his%20inventions%20were%3A&text=A%20windwheel%20operating%20a%20pipe,of%20wind%20powering%20a%20machine.&text=The%20first%20automatic%20vending%20machine,of%20holy%20water%20was%20dispensed.