Wind Feather Diagram and Wind Speed ChartWind feather was a symbol used to represent wind speed. The corresponding rules for wind speed were as follows: a horizontal bar represented 4 m/s, half a horizontal bar represented 2 m/s, and a small flag represented 20 m/s.
The reference wind speed table is as follows:
Level 0 (no wind): Wind speed of 0.0 - 0.2 m/s;
Level 1 (Soft Wind): Wind speed of 0.3 - 1.5 m/s;
Level 2 (light wind): Wind speed of 1.6 - 3.3 m/s;
Level 3 (Breeze): Wind speed of 3.4 - 5.4 m/s;
Level 4 (Gentle Wind): Wind Speed 5.5 - 7.9 m/s;
Level 5 (Strong Wind): Wind speed of 8.0 - 10.7 m/s;
Level 6 (strong wind): Wind speed of 10.8 - 13.8 m/s;
Level 7 (Gale): Wind speed of 13.9 - 17.1 m/s;
Level 8 (Gale): Wind speed of 17.2 - 20.7 m/s;
Level 9 (gale): Wind speed of 20.8 - 24.4 m/s;
Level 10 (Violent Wind): Wind speed of 24.5 - 28.4 m/s;
Level 11 (Storm): Wind speed of 28.5 - 32.6 m/s;
Level 12 (Typhoon (Grade 1 Hurricane): Wind speed of 32.7 - 36.9 m/s.
In addition, there were super typhoons of magnitude 13 - 17 and above. Different levels corresponded to different wind speed ranges, and the wind speed increased with the increase of the level. In Meteorology, through the wind feather and wind speed comparison table, one could directly understand the wind direction and wind speed information from the wind arrow (composed of wind direction stems and wind feathers).
While waiting for the anime, you can also click on the link below to read the classic original work of The King's Avatar!
My Inferiority and FragilityI recommend " The Great Trickster of the State Preceptor." It was a wuxia fantasy novel written by a great duke. It was about Wu Wuyu, who had transmigrated, who relied on his mouth to trick the world into a prosperous age. He coaxed the empress and pacified the people. He even took the time to read the palms of the martial arts heroes and calculate their marriage.
" Portable Mountain Sea World " was also not bad. It was an oriental fantasy novel written by the lost soul of Qingshan. The main character, Wang Hao, had a lot of resources. Others lacked spirit stones, but he had supreme-grade spirit meridians. Others wanted spirit pets, but he led tens of millions of demon soldiers. Others went bankrupt for the sake of the Innate True Spirit, but he happily soaked in the spirit spring. Although his aptitude was poor and he had a lot of poison points, he also had a lot of bright spots. He also had the invincible attribute, and his recommendation index was four stars.
" My Hero's Proficiency is Unlimited " was an esports novel by Golden Porridge. The main character, Zhou Yuan, wanted to play professionally, and the interaction between him and his parents was very interesting.
" Deceiving the Heavens After Death " was a light novel written by Thousand Beads of Ignorance. After Ji Buping's sudden death, he began his journey of fooling the heavens. Without the system, he was relaxed and happy. The quality of the old author's new book was guaranteed.
" Immortal Cultivation: Starting from Druids " was a Xianxia novel that was re-written with deep gratitude. The fusion of Druids and Immortal Cultivation was very novel. The early stages were great, but there were some problems in the later stages, but the overall reading was acceptable. However, some people felt that the main character's principles and plot settings were unreasonable and that they had to think carefully before reading.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Words to describe the fragility of loveI recommend " Since I've fallen in love with you, I won't let go ". Who else can I love other than you? The female protagonist was optimistic, strong, and stubborn, hiding her feelings silently. The male protagonist was cold and ruthless, expressing his love with hurt. Their conversation was very interesting. The fate of the heirs of the four major corporations changed because of the female protagonist. The interweaving of love and hate was very interesting.
'I'm Building an Immortal Court in the Human World' was not bad either. It was written in fragrant sweat and thin clothes. The protagonist Xu Boqing had transmigrated with his game skills and entered the palace as a fake eunuch. The character settings were extremely rich, such as the 18-year-old protagonist and the 36-year-old Empress Dowager Chen. The main character had a good ride. There were many female leads but few emotional scenes. The plot was fast. The writing was average but direct enough. The "driving" was very stable.
Lord Arad, a work of Xu Feng. The male protagonist, Keynes, ridiculed the game for being the son of a baron. He wanted to rely on the Pugilist System to live a good life, but he was involved in a war and finally became the Guiyuan Martial God. It was a very hot-blooded story.
A Fierce Wife Is Hard to Marry, written by Misous Sorrow. The female protagonist was saved from the fate of being a slave by a man who fell from the sky. After getting a marriage contract, she turned into a fierce woman by relying on the holy beast White Tiger Wuling. Her "husband" came to pester her again. It was a warm and loving romance.
The Good Wife, written by Lian Jiang. The reborn daughter married into the mansion. Her husband's heart belonged to someone else, and she also had someone she liked. She wanted to live a small life, but she schemed too much. In the end, she was trapped by the man. The story was very interesting.
Keeling curveThe Keeling curve was drawn by the American scientist Charles David Keeling. Keeling built an observatory in Mauna Loa, Hawaii. Two years after the observatory was built, he published a paper titled Atmospheric CO2 Concentration and Isotopic Abundance, in which he drew the Keeling curve. The curve of the change in the concentration of carbon dioxide observed by Keeling in Mauna Loa was named the Keeling curve, which was considered the most landmark image of climate change science in the 20th century.
" The Island of Life " is also a wonderful novel. Everyone is welcome to read it!
Which is easier to drive, a reverse curve or a continuous curve?The difficulty of driving a reverse curve and a continuous curve could not be simply compared because it depended on many factors.
According to the definition and design requirements, a reverse curve is a road with a design speed of less than 60Km/h. One or both of the turning radius of the two reverse curves is smaller than the corresponding radius of the corresponding design speed, and the distance between the curves is less than or equal to 2 times the design speed. On the other hand, a continuous curve road is a road with a design speed of less than 60km/h. There are three or more reverse flat curves in a row, and the radius of the flat curve is smaller than or two of them are smaller than the specified radius, and the distance between the curves is less than or equal to 2 times the design speed.
For a driver with rich driving experience and good control skills, if he was familiar with the road conditions and vehicle performance, he might find it relatively easy to turn in the opposite direction because there were more turns in the continuous curve road. He needed to adjust the direction more frequently, control the speed, and respond to changes in the line of sight. However, for inexperienced drivers, whether it was a reverse curve or a continuous curve, it was challenging. They needed to drive carefully, such as decelerating in advance, paying attention to the curve situation, and controlling the steering wheel operation range reasonably.
<a href="/?from=ask_words" style="color:red" target="_blank">Read more exciting novels for free</a>
Weather instrument, wind speed and direction indicatorThe wind speed and direction indicator was a kind of weather instrument used to measure and record the wind speed and direction in the atmosphere. It has a wide range of applications in the fields of weather monitoring, ecological environment, wind power generation, and so on. The wind speed and direction indicator could monitor the wind speed and wind direction in the environment in real time, providing detailed data support for related work. In terms of the ecological environment, the wind speed and wind direction instrument could help analyze the changes in air quality. In terms of wind power generation, the wind speed and wind direction instrument can provide real-time, first-hand data support for wind energy development site selection and wind energy operation optimization. With the improvement of science and technology, the wind speed and direction indicator would be applied in more fields to provide wind speed and wind direction data for more users.
What is the tangency of a curve?From a geometric point of view, the tangents of a curve were straight lines that just happened to touch a point on the curve. When the tangents passed through a point on the curve (the point of tangency), the direction of the tangents was the same as the direction of the point on the curve. From an algebra point of view, in advanced mathematics, if a function had a derivative at a certain point, then the derivative at that point was the slope of the tangency line passing through that point. The straight line formed by the point and the slope was the tangency line of the function.
In addition, for a special curve such as a circle, in plane geometry, a straight line that has only one common point with the circle on the same plane is the tangents of the circle. For a general curve, if P and Q are two adjacent points on the curve C, and P is a fixed point, when the point Q is infinitely close to the point P along the curve C, the limit position of the secant line PG is called the tangents of the curve C at the point P, and the point P is called the tangents. The straight line PG that passes through the tangents P and is vertical to the tangents P is called the normal of the curve C at the point P (This reflects the idea of infinite approach). It should be noted that when PT is the tangency of curve C at point P, it may have another intersection with curve C. On the contrary, although the straight line l has only one intersection with curve C, it is not necessarily the tangency of curve C.
What is an integral curve?In astronomy, the integral curve was a proper term. In the field of mathematics, curve integral was a type of integral. The value of the integral function followed a specific curve (called the integral path). When there was such a concept related to the integral path, it could also be understood as the concept of an integral curve. The curve integral included the first type of curve integral and the second type of curve integral. When the integral path was a closed curve, it was called loop integral or curve integral. In addition, there was also the integral curve defined by the differential equation. The answer could be found from the equation itself. At this time, the properties determined by the equation were qualitative.
What is a flat curve?Horizontal curve was the general term for the curve at the turning point of the route in the horizontal alignment, including circular curve and transition curve. It was the line connecting two straight lines, allowing the vehicle to transition from one straight line to another straight line.