A vacuum cleaner powered venturi you can print that actually demonstrates Bernoulli's principle as opposed to misconceptions like "blowing over a piece of paper".
Video explaining Bernoulli's principle and why blowing over a piece of paper does not demonstrate Bernoulli's principle: https://youtu.be/mtwTOdEQ0P0
Link to 3D models: https://www.thingiverse.com/thing:6901495
Science Fair Project
0:00 Why?
0:55 Venturi
1:56 Probes
3:26 Limitations
4:48 What to expect
6:38 Demonstration
10:34 Manometer
11:10 Installing Ports
13:24 Drilling 1/8 inch tubes
14:18 Static probe
15:37 Printing notes
16:13 Pitot probe
16:26 Assembly odds and ends
17:03 KiloPascal to inches of water
17:28 More odds and ends
17:53 What’s on Thingverse
18:17 See you later, alligator
