Parallax

Parallax
Greek for alternation, often used to denote subscreen systems in video games used to enhance the feeling of depth and movement (a division of fore-, middle-, and back-ground graphic fields scrolling at different rates), thus contributing to EHSPF functionality. A prime example being the Training Scene in Mike Tyson's Punch Out ¹, a 1987 NES title. Parallax also applies to the derivation of various stellar distances via techniques like triangulation and the measurement of Doppler redshift. Results from these measurements are given in units called parsecs, where d=1/p when the parallax is given in arcseconds. However, this approach has proven insufficient when applied to Venus' black drop effect. Astrophysicists have speculated this shortcoming is due to the infamous "parallax" error, a mathematical glitch requiring an equational addendum [see below] to compensate for what is essentially a rounding error when dealing with distances of stellar magnitude.

¹ A title later re-skinned as Punch-Out!!! Featuring Mr. Dream. It was widely and errantly reported the re-skinning was due to Tyson's 1992 conviction of raping Miss Black Rhode Island in an Indianapolis hotel room - however Nintendo cancelled Tyson's contract immediately following his stunning upset to Buster Douglas under the Tokyo Dome in 1990.