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.
First, a puzzle that many people would recognize today as the 2x2 cube: Larry Nichols invented this 2x2x2 cube in March of 1970, 4 years before Rubik invented his 3x3x3 cube. Second, Frank Fox invented a spherical 3x3 puzzle that functioned similarly to the Rubik's Cube we know today. Unfortunately, I couldn't find a picture of it, but here's a link to patent: jaapsch.net.