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Do you know all the "cold knowledge" of the Winter Olympics? Xiaoxin brings you up knowledge!
2022-02-18 16:23:23
You can always trust Zhang Yimou."
The wonderful presentation of the opening ceremony of the 2022 Beijing Winter Olympic Games witnessed the romance of the Chinese people and provided a wonderful visual feast for the world.
(countdown of 24 solar terms at the opening ceremony of the Winter Olympic Games)
Zhang Yimou, general director of the opening ceremony of the Beijing Winter Olympic Games, used four words to summarize the opening ceremony as "ethereal, romantic, modern and scientific".
Opening ceremony of Beijing Winter Olympic Games
While enjoying the opening ceremony of the Winter Olympic Games and the wonderful performance of the athletes, let's also enjoy the charm behind the hard core "black technology" enabled Winter Olympic Games with Xiaoxin!
The mystery of the Winter Olympic torch
As one of the elements that have attracted much attention in the previous Olympic Games, the "flying" of the Winter Olympic torch attracted countless eyes once it appeared.
Beijing Winter Olympic torch
The flare shell should not only be fire-resistant and high-temperature resistant, but also be able to be used in extremely cold weather. How to withstand the double test of "ice and fire"?
The mystery lies in the new materials used. The Winter Olympic torch "flying" combines carbon fiber and high-performance resin to make carbon fiber composites. The quality is only about 1 / 4 of that of steel, but the strength is 7 ~ 9 times that of steel.
Through the three-dimensional and three-dimensional weaving of carbon fiber wire, the torch shell is finally woven like "knitting sweater", without any seams and pores, and the whole shape is integrated.
Beijing Winter Olympic torch
In order to achieve high temperature resistance, the combustion end of the upper half of the flare is vitrified at a high temperature above 1000 ℃, which effectively solves the problems such as blistering and cracking of the flare shell during high-temperature preparation, meets the requirements of both temperature resistance and fire resistance, and realizes the normal use under the hydrogen combustion environment with the combustion temperature > 800 ℃.
Beijing Winter Olympic torch
Moreover, the torch made of carbon fiber is light and strong, and can not be broken. At the same time, during the torch relay in winter, the traditional metal materials feel bad. Carbon fiber can effectively solve this problem and avoid the cold touch.
Beijing Winter Olympic torch
In addition, you may have noticed that the flame of hydrogen was originally invisible in the sun, so why is the color of the "flying" flame so dazzling?
This is because the research team has developed a formula that can adjust the color of hydrogen flame to make it have visible flame color in sunlight.
"Charm" in Winter Olympic clothing
The award ceremony dress is a beautiful scenery of the Olympic venue. Different from the summer Olympic Games, the minimum temperature of Winter Olympic venues can reach more than minus 30 degrees.
In such a cold environment, how to make the award ceremony clothes beautiful, comfortable and warm?
Beijing Winter Olympics clothing
There are three sets of ceremony costumes for the Winter Olympic Games and the winter Paralympic Games, namely "auspicious snow and clouds", "good luck landscape" and "flying snow of Tanghua". Not only the appearance is elegant and generous, but also black materials are specially added to the inner liner of the clothes - this is the second-generation graphene heating material developed for the Winter Olympic Games. The thermal conductivity of graphene is very high.
In the case of power on, the carbon molecular groups rub and collide with each other to produce heat energy, which is evenly radiated in a plane through the far-infrared ray, which can be well accepted by the human body and produce a kind of warmth from the inside to the outside.
Beijing Winter Olympics clothing
In addition, the scientific and technological content of competition clothing is higher: for example, in speed skating competition clothing, a rubber material with dozens of times stronger elasticity than ordinary fiber will be selected in the thigh, which can minimize physical consumption.
At the right crotch, a synthetic fiber will be used to effectively reduce friction. In order to reduce air resistance, honeycomb polyurethane materials are used in the hands and feet of speed skating competition clothes. These materials are selected to maximize athletes' performance.
Beijing Winter Olympics clothing
Ski suits are made of shear thickening fluid (STF) material, which is a kind of intelligent molecular material. Normally, it is in a viscous semi-liquid state. Once encountering high-speed impact, these intelligent molecules immediately connect with each other to form a protective layer, so that the external impact force can be dispersed to the periphery and will not be concentrated at a certain point of the body.
The ski suit made of STF material has high protective gas. More importantly, for athletes, it solves the problems of air resistance and clothing flexibility.
Beijing Winter Olympics clothing
The hard core "black technology" in Winter Olympic clothing provides an important guarantee for athletes to achieve good results.
Hard core black technology -- Changxin fourth generation black gold
Finally, when it comes to hard core black technology, Xiaoxin has to tell everyone that Amway and Changxin batteries are the fourth generation upgraded black gold and silver alloy batteries.
"As long as you play, you should be beautiful."
Changxin battery also shows its beautiful posture to the world like the Winter Olympic games powered by hard core black technology!
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