| 摘要 |
PROBLEM TO BE SOLVED: To enable comprehension of time difference, day of the week, day, month, solstices and equinoxes generated on the earth by the yearly round and the daily rotation of the earth seen from the sun. SOLUTION: The globe is so constituted that the yearly round attitude of the earth is translated in parallel to the yearly round center and the globe can perform the yearly round revolution and daily rotation at the yearly round center. A rotary ring with time difference graduation 11 is provided along the equator. On a horizontal plane perpendicular to the yearly round axis, a calendar table 4A is provided and also a calendar-housing box 4B which can house calendars of more than 100 years is provided. On the surface of the calendar table 4A, a model of the sun 5 and a model of yearly round globe 6 are provided and also an earth yearly round calendar 4 of a year, 12 months and 365 days is provided. The globe is also provided with a tape type ruler corresponding to the reduction scale of the globe so that the distance on the surface of the globe can be measured.
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