Circle diagram Circle diagram First conceived by A. Heyland in 1894 and B.A. Behrend in 1895, the circle diagram is the graphical representation of the performance of the electrical machine drawn in terms of the locus of the machine's input voltage and current. The circle diagram can be drawn for alternators, synchronous motors, transformers, induction motors. The Heyland diagram is an approximate representation of circle diagram applied to induction motors, which assumes that stator input voltage, rotor resistance and rotor reactance are constant and stator resistance and core loss are zero. Another common circle diagram form is as described in the two
Love Is Just a Four-Letter Word Love Is Just a Four-Letter Word "Love is Just a Four-Letter Word" is a song written by Bob Dylan, and long associated with Joan Baez, who has recorded it numerous times, and performed it throughout her career. Baez immediately took to the song, which was written by Dylan sometime around 1965, and began performing it, even before it was finished. In the film "Dont Look Back", a documentary of Dylan's 1965 tour of the UK, Baez is shown in one scene singing a fragment of the then apparently still unfinished song in a hotel room late at night. She then