What's the fun of spinning a top with toys that I grew up with?

Gyros have been found in ancient Egyptian cultural relics as early as 3000 ~ 2000 BC.

This is an ancient inertia toy. China called the gyro Qian Qian in Song Dynasty. Later, the gyro circulated by the people was inverted cone, and it was whipped with a whip to make it rotate. /kloc-in the 0/9th century, Europe began to produce modern inertial toys. At that time, the inertia toy car produced in Germany, the shell was stamped with thin iron sheet, and the movement was a lead cast flywheel. China began to produce modern inertia toys in 1930s. The earliest variety was "Lianren". The shape is a lotus flower in bud. Press the handle, the gear drives the lotus to rotate, and the petals unfold due to centrifugal force, revealing the words hidden in the stamen. There is also an inertial toy, the principle of which is the same as that of "chicken breaking its shell". Since 1960s, there has been a factory specializing in the production of inertial toy movements in China. The flywheel in the movement is changed from lead casting to iron sheet superposition, which not only simplifies the production process but also reduces the product cost.

Playing top is a traditional folk game, which exercises the muscles of the whole body to coordinate their efforts. There are more activities on the shoulders, which are especially beneficial to scapulohumeral periarthritis and cervical vertebra. It seems to be playing, and I have been exercising unconsciously. Every time you whip, your whole body will move.