Obsolete Russian units of measurement Peter the Great replace it with the Hindu-Arabic numeral system. The basic unit is the Russian cubit, called the "arshin", which has been in use since the 16th century. It was standardized by Peter the Great in the 18th century to measure exactly twenty-eight English inches (). Thus, 80 vershoks = 20 piads = 5 arshins = 140 English inches (). A "piad" (, “palm”, “five”) or "chetvert" (, “quarter”) is a hand span, the distance between ends of the spread thumb and index finger. Alternative units: As in many ancient systems of measurement the Russian distinguishes between dry and
Tip of the tongue similar meaning, syllabic pattern, and the serial position of some letters in the target word better than would be expected by chance. Their findings demonstrated the legitimacy of the feeling of knowing experienced in a tip of the tongue state. This study was the foundation for subsequent research about tip of the tongue phenomenon. Tip of the tongue experiences occur in people regardless of gender. The tip of the tongue phenomenon is known to occur in young adulthood, middle age, and older adulthood. Tip of the tongue experiences in childhood have not been studied. Education level is not thought to