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https://jonathanferrari.com/projects/screw/ Screw This: A Study of a Simple Positive Displacement Pump - Jonathan Ferrari Mar 11, 2025 - by Jonathan Ferrari, Miles Gillam, and Jason Hilton Awarded 3rd Place in the 2020 Contra Costa County Science and Engineering Fair Purpose The purpose of our... positive displacement pumpscrew thisjonathan ferraristudysimple https://jonathanferrari.com/contact/ Contact - Jonathan Ferrari Mar 31, 2023 - Hi! I’m Jonathan, it’s a pleasure to meet you. Check below for all of my links. If you would like to contact me through this site, there is a contact form at... jonathan ferrari