Chief among these differences is the ability to see color and the ability to see in low light. To understand the differences it is important to understand how the human eye works and from that a derivative can be made to other mammalian species. The eye itself is composed of various components.
If each small box is equal to 0.04 seconds or 1 mm, then the standard ECG speed is 1 mm per 0.04 seconds or 25 mm per second. The standard approach to reading an ECG includes in this order: 1  Examining the rate.  Examining the rhythm.
12 milliseconds between the time a headbanging signal buzzed the first front leg and the time it reached the rearmost one on the opposite side, a distance of about 16 millimeters.