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When the Xray machine was invented in 1895 the inventor did not know why it worked so he called it the Xray because in Math X represents the unknown.

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tetra is short for tetragonopterus, a genus name formally applied to many of these kinds of fish, which is Greek for "square-finned"

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Q: How did Rex get the nickname x-ray?
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Related questions

Why is xray the understood leader in the book Holes by Louis Sachar?

Rex's nickname is X-Ray because in Pig Latin, 'Rex' turns into 'X-Ray'.


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X-Ray got his nickname in the book "Holes" because he claims to have X-ray vision when it comes to finding things buried in the ground. His real name is Rex, but he prefers to be called X-Ray because of his talent for finding objects underground.


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What is the antonym for xray?

There is no antonym. An xray is a wavelength. There is no opposite.


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Depends if the person is a boy or girl. Usually Alex is a nickname, though. (Alexander, Alexandra, Alexandria) Boy: Al, Rex Girl: Allie, Lexie, Alexa


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How did X-ray get his nickname?

X-ray is pig latin for Rex which is his real name. It's in the book. X-ray is pig latin for Rex which is his real name. It's in the book. X-ray is pig latin for Rex which is his real name. It's in the book.