Hair is composed mainly of the protein keratin, with an inner layer containing melanin that gives our hair its natural colour. An outer layer, called the cuticle, protects the hair. Average rate of hair growth is 1cm a month. Speed of hair growth depends on genetics, age and hormone levels.
Ctrl+Alt+Down Arrow = Turns screen upside-down. Ctrl+Alt+Up Arrow = Turns screen rightside-up. Ctrl+Alt+Right Arrow = Turn screen once, clockwise. Ctrl+Alt+Left Arrow = Turns screen once, counter-clockwise.
Window scrolling. The key was meant to lock all scrolling techniques, and is a remnant from the original IBM PC keyboard. In the original design, was intended to modify the behavior of the arrow keys. When the mode was on, the arrow keys would scroll the contents of a text window instead of moving the cursor.