Fluid motion movies
https://www.youtube.com/watch?v=6qEaz4U0MvM
https://www.youtube.com/watch?v=8WtEuw0GLg0
https://www.youtube.com/watch?v=emiBYMLNR7Y
https://www.youtube.com/watch?v=wMxK2GtFFq0
https://www.youtube.com/watch?v=1_oyqLOqwnI
https://www.youtube.com/watch?v=dfY5ZQDzC5s
https://www.youtube.com/watch?v=pkhVxqDg_fk
https://www.youtube.com/watch?v=mdN8OOkx2ko
https://www.youtube.com/watch?v=I5Phg4q5EBU
https://www.youtube.com/watch?v=EPe1Ho5qRuM
https://www.youtube.com/watch?v=uUGlPxAw9J0
https://www.youtube.com/watch?v=PCj-82oYgUs
https://www.youtube.com/watch?v=w0SlLmXXTr0
https://www.youtube.com/watch?v=_rQen_m7d6c
https://www.youtube.com/watch?v=ZUllziPdRkw
https://www.youtube.com/watch?v=UgfMx3-6Q-E
https://www.youtube.com/watch?v=y44rQdiixuw
https://www.youtube.com/watch?v=debN4toiYBM
https://www.youtube.com/watch?v=7BOhDaJH0m4
A Kundt's Tube is an apparatus used to demonstrate and measure sound waves, consisting of a transparent horizontal pipe containing powder or styrofoam beads.
https://www.youtube.com/watch?v=FF-hFdim_gs
https://www.youtube.com/watch?v=0rJnXZsrMjU
https://www.youtube.com/watch?v=jk6fOYKNWRQ
https://www.youtube.com/watch?v=VLD8E2UraXw