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.
Eleven years later, James Bogardus patented a âforever pointedâ pencil in the U.S. While these patents mark a great step forward in pencil history, the giant leap wouldnât occur until 1879. This is when Joseph Hoffmann invented the pushbutton clutch in New York City. First incorporated into the Eagle Automatic, a product of the Eagle Pencil Company, this represents the first true mechanical pencil.