What is a Meteor?

A meteor is a meteor body (usually including space particles such as cosmic dust particles and solid blocks) that moves in interstellar space and is attracted by the earth due to the gravitational perturbation of the earth, so it enters the earth's atmosphere and burns with the atmosphere. The resulting light trail. The meteor originally moved around the sun. When it passed near the earth, it was affected by the gravity of the earth and changed its orbit to enter the earth's atmosphere. Meteors are single meteors, fire meteors, and meteor showers. Before falling to the ground, most of them have been burned to ashes, and a few will be turned into meteorites and fall to the ground. Most visible meteors are similar to sand particles and weigh less than 1 gram. The speed at which the meteor enters the atmosphere is between 11 km / s and 72 km / s. People usually give it a beautiful meaning, and think that seeing and wishing at the meteor can achieve their wish.

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Meteors are

In addition to the sun in the solar system,

Meteor :

The discovery and record of the meteor shower is also the earliest in China. In the "Book of Bamboo Chronicles", there are records of "Fifteen Years of the Emperor Xia Emperor, and the stars fall like rain in the night."

Of course, we must not let go of the "outer guest" of the meteorite. Analyze the composition of meteorites and find that they can be divided into three types: meteorite (meteorite), stone meteorite (meteorite) and iron meteorite (meteorite) according to different chemical compositions. ^[2]

Observing meteors is of great significance for us to study the structure and physical properties of the upper atmosphere, the short-wave radio communication of ionized gases caused by meteors, and the origin and evolution of the solar system.

January

Ancient weapon, extra-long soft weapon with flying hammer. There are single meteors and double meteors. A single meteor has a grip at one end, and a duck egg-shaped copper hammer the size of a gourd on the other end. The handle and the copper hammer are usually connected by an eight-foot-long rope (also using a thin iron chain or a wire rope); Meteors are usually five-foot long ropes between two small copper hammers of the same size and mass.

For a long time, many meteors have been mistaken for soft whip. There is an essential difference between a soft whip and a single meteor:

In shape, the soft whip is usually one by one (such as the common nine and thirteen whip), does not have a flying hammer, and the whip body is relatively hard, less flexible than the meteor's rope.

In use, the soft whip is usually used to pull the grip by a wrist to perform a spike attack, while the meteor uses the centrifugal force generated by the fly hammer to carry out a wrap-around attack. Therefore, a warrior using a meteor shakes a flying hammer above his head when preparing to launch an attack, while a warrior using a soft whip does not.

Ancient one

A kind of acrobatics, where a water bowl, fireball, or colored ball is tied at both ends of a long rope, and the rope is shaken to make the water bowl, fireball, or colored ball fly in the air, but the water does not overflow, the fire does not fall, and looks Air shooting star. Techniques include overhead, biting, hanging shoulders, palm rest, waist, frame back, roll, riding, etc. In the old days, the show was held with this program.