Open post 13 @13@2137.social · Apr 12, 2026 13 @13@2137.social 2137.social Testing Refrigerants and Capillary Tubes to Find Peak Performance https://hackaday.com/2026/04/11/testing-refrigerants-and-capillary-tubes-to-find-peak-performance/ #Science #Refrigerant #Refrigeration