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Saturday, April 18, 2020
Echo and X-Ray - International Maritime Signal Flag Concordance
The letter X and letter E, are called X-Ray and Echo. In the modern day, Echo location and X-ray vision are important tools in science and military technologies. When you take an X-ray picture, you are basically looking at an Echo of high frequency radiation.
The queer thing is that the names for the flags for Echo and X-Ray create a concordance, as a names of the flags pair up like salt n' pepper, Romeo n' Juliet.
Image X-ray
https://www.nibib.nih.gov/science-education/science-topics/x-rays
Image echo
https://www.yousigma.com/interestingfacts/whatisecho.html
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