Circle modeling the earth. O is the center of the earth, r the radius of the earth, and h the height…
An illustration of a man sitting in a chair gazing over the horizon.
An illustration of a group of pirates looking off into the horizon.
A header that reads "September" in front of a city skyline.
An illustration of the sun rising over the horizon.
The seal of the United States and Cuba.
An illustration of a woman gazing out into the horizon.