The Columbus Student Marco Polo Illuminated Desktop Globe 12 Inch is overflowing with incredibly detailed cartography! The 12 Inch acrylic sphere is held 15 inches tall by the sturdy plastic stand but is 15 inches wide because of the circular meridian. Besides the vertical meridian, which has latitudinal degree calibrations, a horizontal meridian surrounds the globe and features a notch for each of the day's 24 hours. It can be used to tell what time of day it is in anywhere in the world.
The desktop model's illumination only spans half of the globe at a time, making the sunrise and sunset times visible across the world. At the bottom of the base there is a dial that has a notch for every day of the year. By twisting the dial, the globe replicates the earth's yearly orbit around the sun. A bright spot on the world globe represents the sun, and as the dial turns, the spot alternates from the Topic of Cancer to the Tropic of Capricorn meridian. The sun's relation to the earth, along with other astronomical information, can be read on the Marco Polo.
When the globe is illuminated, the lit part of the sphere shows the areas of the planet experiencing daytime, and the dark patch represents night. The three vertical rings on the edge of the dark patch shows the three twilight zones: nautical, astronomical and civil. In addition to its abundance of astronomical value, the Columbus Student Marco Polo Illuminated Desktop Globe 12 Inch features a detailed political map that also contains shading to illustrate the planet's physical attributes, adding to its geographical merit. The Marco Polo is the most information rich globe around, making it an indispensable educational tool!
I got this for my daughter. She loves looking at it and keeping it illuminated at night. It's filled with interesting astronomical and geographical information that I love exploring with her.