Eureka (word)
The exclamation 'Eureka!' is attributed to the ancient Greek scholar Archimedes. He reportedly proclaimed "Eureka! Eureka!" after he had stepped into a bath and noticed that the water level rose, whereupon he suddenly understood that the volume of water displaced must be equal to the volume of the part of his body he had submerged. (This relation is "not" what is known as Archimedes' principle—that deals with the "upthrust" experienced by a body immersed in a fluid.) He then realized that the volume of irregular objects could be measured with precision, a previously intractable problem. He is said to have been so eager to share his discovery that he leapt out of his bathtub and ran naked through the streets of Syracuse.
Short U (Cyrillic)
The letter originates from the letter izhitsa with a breve (Іереѵ̆ская власть, пучина Егеѵ̆ская, etc.) used in certain Ukrainian books at the end of the 16th and the beginning of the 17th centuries. Later, this character was probably in use in the Romanian Cyrillic script, from where it was borrowed in 1837 by the compilers of Ukrainian poetry book "Rusalka Dnistrovaja" (Русалка днѣстровая). The book's foreword reads “we have accepted Serbian "џ" . . . and Wallachian [Romanian] "ў" . . .”. In this book, is used mostly for etymological [l] transformed to [w]. Modern Ukrainian spelling uses ([v]) in that position.