Watch a Trumpeter Play Fire in a Classic Physics Experiments That Lets Us “See Sound”
It’s not often we get to “see” sound. Perhaps we occasionally notice the digital waves in a voice recording, but watching sound happen—especially in real life—is a rarity. One classic physics experiment, however, allows us to do just that. Called Rubens Tube, or a standing wave flame tube, it displays the relationship between sound waves and sound pressure.