The morning and evening, the first tree a table in the East, manipulate a table but go to the previous table ten steps, in order to look at the sun began to go out of the north of the Lian. When the sun comes straight in, another watch is set up in the east, and the watch in the west is used to look at the sun, and the square enters the northern part of the country to set the east side. In the two tables, and the table of the West, then the East and West of the positive. Day winter solstice, sunrise in the southeast dimension, into the southwest dimension. To the spring and fall equinoxes, sunrise in the east, into the west. Summer solstice, out of the northeast dimension, into the northwest dimension, to the south. Want to know the east-west, north-south vastness of the number of people, set up four tables to square a mile, the first spring equinox if the autumnal equinox more than 10 days, from the north of the table to look at the beginning of the day and Dan, in order to wait for the corresponding, corresponding to this and the day straight also. The south of the table to look at, to enter the previous table number for the law, in addition to raising the wide, in addition to the establishment of the table vast, in order to know the number of things from this also. If you look at the sunrise, into the former table in an inch, is an inch of a mile, a mile of 8,000 inches, from this east of 18,000 miles. If you look at the sun, half an inch into the front table, then half an inch to get a mile, half an inch and divided by a mile to get 36,000 miles, divided by the number of miles from the West. And the east of the number of miles, then the extreme diameter. Before the vernal equinox and straight, has been the autumnal equinox and not straight, this place south also. If the equinox is straight before the fall equinox, and the equinox is not straight, this is the north. If the equinoxes are straight, and the equinoxes are not straight, then the north is also north. From the center, I want to know the middle and the south, but not straight before the autumnal equinox, and this is the middle of the north and the south. From the center, I want to know the distance between the north and south poles, from the southwest table to look at the sun, the summer solstice began to come out and the north table, then the east and northeast table and so on. The east is 18,000 miles, then from the center of the north is also 18,000 miles. The number of miles between north and south is also doubled. It is not from the center of the number, in order to enter and exit the former table of the number of gains and losses, the table into an inch, inch minus the day close to a mile, the table out of an inch, inch gain far a mile. Want to know the height of the day, the tree table is one ten feet high, north and south of a thousand miles apart, the same day degree of its yin, the north table one foot, the south table feet nine inches, is a thousand miles south of the yin short inches, south of 20,000 miles is no view, is straight down the day also. Yin two feet and get a high ten feet, South one and high five, then set from this South to the number of miles under the sun, and thus five, for 100,000 miles, then the sky is also high. If you make the scene and table, etc., then high and far, etc..