15K views · 119 reactions | This test tube sings like a flute Ever played with it? For step-by-step instructions of this experiment go here: https://mel.sc/sIo/ This experiment is not included in the MEL Chemistry subscription and should be performed only by professionals–we just love showing you the beauty of chemistry For cool and safe experiments to do at home, sign up for MEL Science here: https://mel.sc/sIp/ | MEL Science | Facebook

12K views · 34 reactions | Stamp Christmas tree art with a cardboard tube and add fingerprint ornaments ❄️ | I Heart Arts n Crafts | Facebook

Pressure & Vacuum Tube Leak test and Tube sheet soap leak test = Pressure & Vacuum Tube Leak Test Academic Definition The Pressure & Vacuum Tube Leak Test is a class of non-destructive testing (NDT) methods used to verify the leak-tightness of industrial components-mainly in piping, vessels, and heat exchanger tubes--by subjecting them to either internal overpressure (pressure test) or underpressure (vacuum test) and observing for pressure changes over time. It ensures that the tested object can

461K views · 10K reactions | (TikTok) Anime DIY//Crafts//Ideas Part 5 Credit: TikTok Tv (https://youtu.be/aIAUdao4MZI) | Ａｐｐｒｅｃｉａｔｉｖｅ | Facebook