The time for one complete cycle, a left swing and a right swing, is called the period. The period depends on the length of the pendulum, and also to a slight degree on the amplitude, the width of the pendulum's swing.he period of swing of a simple gravity pendulum depends on its length, the local strength of gravity, and to a small extent on the maximum angle that the pendulum swings away from vertical, Î¸0, called the amplitude.
Compulsory elementary schooling was formally introduced in Sweden in 1842. A process of reform, destined to take many years, began in the 1940's with the aim of expanding compulsory schooling.
Under section 8(4) of the Education Act 1996, a new single school leaving date was set for 1998 and all subsequent years thereafter. This was set as the last Friday in June in the school year which the child reaches the age of 16.urham University was also established in the early nineteenth century. Towards the end of the century the  redbrick  universities were founded. The 1944 Education Act established the Tripartite System of grammar schools, and secondary modern schools.