Constant acceleration motion can be represented in motion graphs which represent velocity, acceleration, and distance as functions of time. These graphs are useful for calculating information about motion using the slopes of the curves in each plot.
Rubik's Cube is a 3-D combination puzzle invented in 1974 by Hungarian sculptor and professor of architecture ErnÅ Rubik.
The fastest robot to solve a Rubik's Cube is Sub1 Reloaded, constructed by Albert Beer (Germany). MultiCuber 3, constructed by David Gilday set a record for completing a 4x4x4 cube by a robot in 1:16.68 minutes on 15 March 2014 at Big Bang Fair in Birmingham.