Discus is a sport, and it is iron and can't be eaten. The discus movement has a long history. Long before the ancient Olympic Games, pebble throwing was widely circulated among the people.

In the ancient Olympic Games, discus became a formal event, but at that time, the equipment used in the competition was flat and round stones, and there was no uniform standard for weight and size. The highest organization of discus sport is international association of athletics federations, which was founded in 19 12, and its headquarters is in Monaco, with the aim of developing world track and field sports.

The origin of brain teasers

Brainstorming originated in ancient India. Brainstorming is a series of complete comic jokes published by Times Culture on 19891February 6, which changed from comic questions on the previous page to unexpected answers after turning over.

At that time, there was a great popular upsurge in Taiwan Province society, and all the streets and alleys were asking each other brain teasers, which evolved into a pattern of cold jokes and was later introduced to Chinese mainland.