According to China's ancient wondrous book "Classic of Mountains and Seas", there are three green birds***, the name of which is Zhaolan, Purple Swallow (there is another green bird whose name the author did not check), are the attendants and messengers of the Queen Mother of the West, they can fly over thousands of mountains and rivers to pass the message, and pass the good tidings of good fortune, happiness, and joy to the earth. It is said that the Queen Mother of the West once wrote a letter to Emperor Wu of the Han Dynasty, and the Queen Mother of the West sent the green bird to deliver the letter, and the green bird carried the letter from the Queen Mother of the West all the way to the Hall of Cheng Hua in front of the Han Palace. In later myths, the green bird evolved into the phoenix, the king of all birds.
Li Jing, the lord of the Southern Tang Dynasty, wrote a poem, "The bluebird does not send letters beyond the clouds, and the lilac knots the sorrows in the rain"; Li Bai of the Tang Dynasty wrote a poem, "I wish that the three bluebirds could report the longing for each other"; and Li Shangyin wrote a poem, "There is not much way to go to Pengshan, but the bluebird is attentive to visit it. The green bird is very attentive to visit", Cui Guofu has a poem "Remote thought of Han Wu Di, the green bird a few times", borrowed from the allusion to the "green bird to pass on the book".
The Yellow Ear
The pigeon is more familiar with the pigeon because there are pigeon associations now, and long-distance pigeon flights are often held. The fact that pigeons do not get lost in long-distance flights stems from a feature unique to them, namely, the ability to recognize direction by sensing magnetism and latitude.
There is no clear statement about the exact time of the beginning of pigeon messenger, but as early as in the Tang Dynasty, pigeon messenger was already very common. The fifth generation Wang Renyu "Kaiyuan Tianbao remains" book in the "pigeons" records: "Zhang Jiuling boy, the family pigeons. Every letter with the pro-knowledge, only to tie the book on the feet of the pigeon, according to the teachings of the place, fly to cast. Jiuling eye for flying slaves, the people were all surprised." Zhang Jiuling was a politician and poet in the Tang Dynasty, he not only used carrier pigeons to deliver letters, but also gave them a beautiful name - "Flying Slave". Since then, Song, Yuan, Ming and Qing dynasties, pigeons have been playing an important role in people's communication life.
Kite communication
The kite, which we use for entertainment today, played an important role as an emergency communication tool in ancient times.
Legend has it that as early as the end of the Spring and Autumn Period, the master craftsman of the State of Lu, Gongshu Pan (i.e., Lu Ban), had modeled after the shape of a bird, "chipping bamboo and wood as a magpie, into the flight, three days not", which was made of bamboo and wood as a material that would fly the "wooden magpie", which was the predecessor of the kite. In the Eastern Han Dynasty, Cai Lun invented papermaking, and people used bamboo gabions to make a frame, and then used paper to paste it, which became the "paper kite". In the Five Dynasties, when people made paper kites, they attached a bamboo whistle to them, and when the wind blew the bamboo whistle, the sound was like the sound of a kite, and the word "kite" came from it.
Originally, kites were made for military needs, and their main purpose was to be used for military reconnaissance, or to transmit information and military intelligence. It was only after the Tang Dynasty that kites gradually became an entertaining toy and were spread among the people.
Lighthouses
Lighthouses originated as signaling beacons in ancient Egypt. The world's earliest lighthouse was built in the 7th century B.C. It was located on Cape Baba in the Darnell Strait and stood like a huge bell tower. At that time people burned firewood in the lighthouse and used its firelight to guide their course.
In 280 BC, the ancient Egyptians built a lighthouse on the island of Pharos opposite the city of Alexandria, Egypt, on the order of King Tolomei II Philadelph, which was 85 meters high and burned wood day and night to use the flames and columns of smoke as a sign to aid navigation. Faros lighthouse is known as one of the seven wonders of the ancient world, destroyed by an earthquake in 1302. 9 century, France in the Gironde estuary surgical Duon reef on the establishment of the lighthouse, has been twice rebuilt, the existing built in 1611.
Among the old lighthouses, Italy's Leghorn Lighthouse is still in use today. This lighthouse was built in 1304 in stone and is 50 meters high. The first lighthouse in the United States was the Boston Lighthouse built in 1716. After that, in 1823, built a lens lighthouse, 1858 built a power lighthouse, 1885, the first caisson method of building lighthouses on soft foundations, 1906 inaugurated the first gas flash tower. 1850, the world's only 1570 lighthouses, in 1900 increased to 9,400. By early 1984, the total number of lighthouses, including other illuminated beacons, had exceeded 55,000.
Communication towers
In the 18th century, the French engineer Claude Chapey succeeded in developing an accelerated communication tower. Chapey succeeded in developing a practical communication system to speed up the transmission of information. The system consisted of a number of communication towers erected 230 kilometers between Paris and Lille. At the top of these towers was erected a wooden post on which was mounted a horizontal cross-bar which could be turned and swung at various angles by the operation of a rope. At the ends of the horizontal bar are two vertical arms, which can also be turned. In this way, each tower could be formed into 192 different configurations by means of the wooden poles, and nearby towers with telescopes would be able to see the messages indicating the 192 meanings. Passed down in this order, a message could be completed in only 2 minutes over a distance of 230 kilometers. The system was instrumental in the French Revolutionary War in the 18th century.
Signal flags
Signal flag communication has been used on ships for more than 400 years now. The advantage of signal flag communication is that it is very easy, so even though today's modern communication technology is quite advanced, this easy way of communication is still preserved as an important way of proximity communication. When conducting flag communication, signal flags can be used individually or in combination to indicate different meanings. Usually a single flag is flown to indicate what is most urgent, important, or commonly used. For example, flying an A flag means "there are divers below our ship, please slow down and move away from our ship"; flying an O flag means "someone is overboard"; flying a W flag means "our ship needs medical assistance" and so on.
Signals
For 200 years in the 15th and 16th centuries, fleet commanders commanded their ships by firing their guns or hoisting their sails, and in 1777 Admiral Howe, commander of the British fleet in the Americas, was the first to write a signaling book when he printed one. Later, Admiral Lord Popham used a number of flags as "shorthand" letters to create a complete alphabet of semaphore, and in 1805, when Lord Nelson was commanding the Battle of Trafalgar, his last signal before he was killed in action was Popham Signal No. 16: "Sail close to the enemy, and fight at close quarters."
In 1817, Captain Marriott of the British Navy compiled the first internationally recognized letter number. The Boat and Sea Signal Flags*** had 40 faces, including 26 letter flags, 10 number flags, 3 surrogate flags and 1 answer flag. The shapes of the flags are different: dovetail, rectangle, trapezoid, triangle and so on. The colors and patterns of the flags also vary.
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Respondent: Cherry Butterfly Frost - Beginner Disciple Level 1 5-19 21:22
The green bird passes on the book Tang Taizong life believe in God, one day flew in a green bird, very beautiful (that is, the phoenix later on) Tang Taizong saw the busy Taoist priests, the Taoist priests told him that the bird is a messenger from the Queen Mother, he came! Tang Taizong was busy setting up a banquet to entertain him, and a while later, the Queen Mother did come. You are the fifth grade language it I also
Responders: Zi Yi Qianhui - magic apprentice level 5-19 21:36
Week King Yuyi to take the consort a smile, commanded underhand lit beacon
Responders: water drop purple - magic apprentice level 5-19 22:39
Beacon fire communications
Far away from the Zhou Dynasty in our country there is beacon fire
Method of transmission of information, beacon fire
What is a beacon fire, beacon fire
What is a beacon fire
When the Zhou Dynasty in our country has a beacon fire, beacon fire is a method of transmission of information, beacon fire is the method of communication. The method of transmitting information, beacon as a primitive means of sound and light communication, serving the ancient military war. From the border to the capital of the country as well as on the border defense line, a beacon tower was built every certain distance. When the enemy invaded, the beacon fire was lit one after another, and when the lords saw the beacon fire, they immediately sent troops to help them resist the enemy.
Western Zhou Dynasty, in order to prevent enemy invasion, the use of "beacon tunnel" as a border emergency contact signal. In the ancient history book "Zhou Li" has such a paragraph records "in the countries from the border to the hinterland of the channel, every distance, built a beacon, one after another, on the platform with orange pulley, orange pulley head with a cage containing firewood, the enemy invasion, beacon one after another to fireworks to transmit the alarm. Whenever the night warning, guarding the stage people ignite the cage of firewood and grass and raise it high, relying on the light of the fire to the leader of the platform to pass the message, known as "beacon", the daytime warning is ignited on the stage on the accumulation of fuel grass, smoke to show the urgency, known as the "flint". Ancient people in order to make the smoke straight and not curved, in order to be seen from afar, but also often with wolf dung instead of fuel grass, so also known as wolf smoke. The Zhou Dynasty stipulates that: the Son of Heaven raised the beacon flint lords around the world must immediately bring troops to the rescue, *** with the resistance to the enemy. It can be seen, the implementation of the beacon system, means that as early as in the Zhou Dynasty has appeared a huge and perfect military information contact network.