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.
Bierock
Bierocks are similar to both pirogi/pirozhki of Russian cuisine and börek of Turkish cuisine. There is debate about the actual etymology of the word "bierock". Traditionally it was supposed that "bierock" was derived from the Russian word "pirog". However, a recent theory speculates that the word "bierock" may be derived from "börek". This theory is based on both geographic close proximity of the former Volga German ASSR to present day Kazakhstan as well as the influence of considerable population of historically Turkic speaking peoples such as Kazakhs and Tatars living in the Volga region. Neither theory, however, has been conclusively proven.