Bunsen burners in 2500 and visualization of sound waves

In different countries, popularizer of science spend very entertaining and spectacular experiments, which attract a large number of inhabitants to the scientific issues. Recently in the network has been laid out an interesting movie, which demonstrated a very advanced version of трубы Rubens (in Habré, incidentally, has already published a post about the, how to make a pipe Rubens ).



Here's what Wikipedia tells us about Rubens 'tube' Cut pipe perforated along its length. One end is connected to a small speaker, and the second - to the source of combustible gas (propane tank). The tube is filled with a combustible gas, so that gas leaking out through the hole burning. If the constant frequency is used, the tube may be formed within the standing wave. When the speaker is on, in the tube formed by the field of high and low pressure. Where due to sound waves is an area of ​​high pressure through the holes and leaks more gas flame height more. This makes it possible to measure the wavelength of a measuring tape measure the distance between the peaks ».

So, in the experiment in question has been used more than one pipe with holes, and the whole system consisting of 2,500 burners. The whole system is called Pyro Board.

The whole system is very effectively responds to changes in pressure, due to the influence of the sound waves, and we can literally "see" the sound.



Source: habrahabr.ru/post/220159/