"Annie Laurie" is an old Scottish song based on a poem said to have been written by William Douglas (1682?–1748) of Dumfriesshire, about his romance with Annie Laurie (1682–1764). The words were modified and the tune was added by Alicia Scott in 1834/5. The song is also known as "Maxwelton Braes".
The diaphragm is another term for the aperture, so it controls the amount of light passing into the film camera.
An interval is the interval between two pitches of the same name.
<h3>Thanks a lot for that motivational short speech!</h3>
<h3>#1AtLeaderboard</h3>
