Fluid Mechanics BB gun shot into a glass of waterBB gun shot into plaster (hard and soft)bubbles in water CSU Engines Lab fuel injection into large-bore natural gas enginemarble dropped into a shallow container of watermilk drops deepmilk drops shallowmilk drops pebble dropped into a shallow container of watersoap bubble popspray bottlesvanilla extract drops into waterwater dripped onto a fanwater drop, close-up, in reversewater drop bouncing
