The oldest known globe came out around 1504. It consists of the lower half of two ostrich eggs, and the names of the continents and oceans in the world are marked on the surface with ink. By analyzing the ink samples, the researchers got the approximate age of the globe.

The clever ancients used ostrich eggs as spherical bases, which made the globe have a more realistic three-dimensional sense. On this globe, the names of continents and oceans are carefully marked.

These words marked with ink are the witness of people's cognition and exploration of global geography at that time. After years of baptism, these ink marks are still clearly visible, as if letting us see the wisdom and courage of the ancients. It makes us cherish our earth more and inspires us to explore more unknown fields.

Matters needing attention in using globe

1, handle with care: globes are usually made of glass or plastic, which is fragile. Please handle them with care during use to avoid damage caused by falling or collision.

2. Damp-proof and dust-proof: The maps and logos on the globe are generally printed, which are easy to get wet or be polluted. Avoid wetting the globe when using it, so as not to affect the use effect. At the same time, the surface of the globe should be cleaned regularly to avoid dust accumulation and influence observation.

3. Pay attention to the rotation sequence: If there is a rotating device on the globe, pay attention to the correct rotation sequence. Usually, the earth axis should be rotated first, and then the equatorial or meridian coils should be rotated. Don't turn the globe too hard or too fast to avoid damaging the internal structure.

4. Pay attention to the observation angle: when observing the globe, choose the appropriate angle and height to ensure that you can see the map and signs clearly. Avoid observing from a position where the angle is too low or too high, which will affect the observation effect.

5. Learning guidance: Different types of globes may have different methods and functions. Before using them, it is best to read the instructions or have a simple study to fully understand the skills and characteristics of using globes.