Visualizing the Size of the Moon and Its Distance to Earth Using a Basketball and Tennis Ball
Alex Worden very cleverly visualized the size and the distance of the moon to the Earth in relative terms using a basketball and a tennis ball. While doing that he also compared the size of the United States to the size of the moon.
In a separate post, Worden also used the same tools plus an apartment building to visualize the size of the sun in comparison to both the Earth and moon.
via Digg