https://physlab-wiki.com/ 2026-04-17T22:09:43+00:00 https://physlab-wiki.com/ https://physlab-wiki.com/lib/tpl/UChicago/images/favicon.ico text/html 2021-11-08T14:47:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/physics_with_a_bang/waves_and_optics/breaking_a_beaker_with_sound?rev=1636400856&do=diff Breaking a Beaker with Sound A sine generator is used in conjunction with an audio amplifier and a horn loudspeaker to generate a powerful, single frequency tone. The sound waves will cause a common Pyrex beaker to vibrate. If the frequency of the generated tone matches the dominant resonant frequency of the beaker and the sound waves are strong enough, the beaker will break. text/html 2021-11-08T14:48:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://physlab-wiki.com/physicsdemos/physics_with_a_bang/waves_and_optics/singing_corrugated_tube?rev=1636400903&do=diff Singing Corrugated Tube Tones are heard when a plastic corrugated tube is swung around in the air. Several harmonics may be generated by varying the speed with which the tube is swung. L2 PIRA DCS 3D30.35