Koenig's manometric flame apparatus was a laboratory instrument invented in 1862 by the German physicist Rudolph Koenig, and used to visualize sound waves. It was the nearest equivalent of the modern oscilloscope in the late nineteenth and early twentieth centuries.
Read more about Koenig's Manometric Flame Apparatus: Description
Famous quotes containing the words flame and/or apparatus:
“You behold a range of exhausted volcanoes. Not a flame flickers on a single pallid crest.”
—Benjamin Disraeli (1804–1881)
“Our talk of external things, our very notion of things, is just a conceptual apparatus that helps us to foresee and control the triggerings of our sensory receptors in the light of previous triggering of our sensory receptors.”
—Willard Van Orman Quine (b. 1908)