Manufacturing method of simple globe

About how to make a simple globe, the answer is as follows:

1. method

First, take a table tennis ball and draw the necessary latitude and longitude, such as equator, latitude 30, latitude 60, pole, prime meridian, longitude 180, etc. Of course, if you are good at drawing, you can also draw a map of China, but drawing a map of table tennis is not so easy.

After drawing the ball of the globe, we must make a hole in the poles. There is no such hole on the earth, but our globe is fixed on a bracket and still needs to be used. In this way, the ball of the globe is completed. Now let's make a support for the earth. The easiest way is to fold it into the shape of a globe bracket with wire. Then put the ball in and adjust the appearance of the bracket, so that a simple globe is completed.

2. Global introduction

A globe is a model of the earth. Globe is to facilitate people to understand the earth, people imitate the shape of the earth, according to a certain proportion, made the model of the earth-globe. There are deformations in length, area, direction and shape on the globe, so it is almost correct to observe the relationship between various scenes from the globe.

3 Practical function

A globe is a model of the earth. Although it can't show all kinds of geographical things and phenomena in detail like a map, and can't fully reflect the actual situation of the earth, it can avoid the errors and deformation of the length, direction, area or shape on the map, and can help us sort out many related concepts of the earth and get the main concepts of the earth.

4. Advantages

Globe is a common tool for geography researchers, a common teaching aid for geography teachers and a tool for ordinary people to solve some geography-related problems. It has the following functions: it correctly represents the position, direction and area of continents, oceans, islands and countries on the earth; Clarify the shape of the earth and the concepts of axis, pole, polar circle, tropic of cancer, equator and latitude and longitude; Explain the revolution and rotation of the earth, the reasons for the formation of day and night and seasons, local time and standard time.

Calculate the geographical coordinates of any place marked on the globe, the area of a certain area, or the distance between any two places; Determine the time of day and night and the time of sunrise and sunset anywhere on a certain latitude; Calculate the number of days and start and end dates of pole pieces and polar nights at any latitude in the polar circle.

Calculate the number of days and start and end dates of white nights anywhere in temperate high latitudes; Determine the date of the twenty-four solar terms; When calculating the local time and standard of each longitude, explain the reasons for the formation of the international international date line; Determine the approximate value of solar declination on any day of the year; Do other demonstrations in geography teaching.