Methane gas burning bright yellow/orange in a line of single flames through the nozzles (of a Rubens' tube).

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"A Rubens' tube, also known as a standing wave flame tube, or simply flame tube, is an antique physics apparatus for demonstrating acoustic standing waves in a tube. Invented by German physicist Heinrich Rubens in 1905, it graphically shows the relationship between sound waves and sound pressure, like a primitive oscilloscope. Today it is only used occasionally, as a demonstration in physics education." Wikipedia

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Size: 3624px × 2415px
Location: London, UK
Photo credit: © Maurice Savage / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: apparatus, background, black, bright, brightly, britain, burning, colorful, colourful, demonstration, england, flame, flames, gas, line, methane, nozzles, orange, pilots, rubens, school, single, tube, uk, yellow