Maccoin virtual currency
In order to make developers get more revenue by submitting apps, Amazon launched Amazon coin, a virtual currency for apps, games and in app purchases of kindle fire
this virtual currency will first be launched in the United States in May. By then, there will be two payment methods for the kindle fire, one is through credit card binding, and the other is through Amazon coin. Where 1coin = 1 cent. The launch of virtual currency will stimulate consumption to a certain extent, because parents may be more willing to let their children make in app purchases, which will benefit developers
for developers, they don't need to do anything to use Amazon coin, but if they haven't submitted their own app, they need to submit it before April 25, so that they can use Amazon coin in May
Amazon officially announced the launch of its first virtual currency, coins, on May 13, 2013. Users can use coins to buy apps, games and in app items in the Amazon app store. One dollar can buy 100 coins. Along with the launch of the coins payment system, Amazon presented 500 coins worth $5 to all kindle fire users. Amazon said that the total value of the coins presented reached tens of millions of dollars
like other virtual currencies (such as Facebook credit coin), Amazon launched coins to promote users' consumption on amazon.com. Once users buy Amazon coins, they can only consume them on amazon.com. Amazon will continue to accept users to buy apps and games using traditional payment methods
Amazon coins can only be used to purchase apps, games and in app items, but Amazon has plans to expand the scope of its use. Mike George, vice president of Amazon's apps and games division, said: "we're going to increase the way users earn coins and expand the use of coins."
the suspense is, will Amazon expand the use of coins to all procts other than digital procts? Theoretically speaking, since Amazon can use coins in digital commodity transactions, it can also use coins payment system in physical commodity transactions
class activities are directly related to the quality of students' life, learning and teaching. Any good school will put class management in an extremely important position
the object of class management is all kinds of management resources in the class, and the main object is students. Class management is mainly the management of students
the main means of class management are planning, organizing, coordinating and controlling
class management is a process of organizational activities, which reflects the two-way activities between teachers and students, and is an interactive relationship. The participants are teachers and students. The teacher's management and the student's (class committee) management are combined to form the class management< The task of class management:
1. To achieve teaching objectives and improve learning efficiency
the fundamental reason for the emergence of class organization is to implement teaching activities more effectively. Therefore, the main function of class management is how to use a variety of teaching techniques to carefully design different teaching activities and organize, arrange and coordinate different types of students' learning activities
2. To maintain class order and form a good class atmosphere
class is the basis of all students' activities and the main place for students' communication activities. Therefore, the basic function of class management is to mobilize the enthusiasm of class members to participate in class management and jointly establish a good class order and healthy class atmosphere
3. To train students' ability and learn to take care of themselves by themselves
there are the most basic interpersonal and social connections in class organization, and there are certain organizational levels and division of work. Therefore, the important function of class management is not only to help students become self-learning, self-care, self-working people, but also to help students learn social roles, acquire the ability to understand society and adapt to society, which is extremely important for promoting students' personality growth.
"Stock god" Warren Buffett earnestly advised: "don't waste your hard-earned money on investing in bitcoin!" Now, many financial experts agree with Mr. Buffett
According to Carson, blockchain will realize the equal exchange of value and services. This will change a country's economic situation and improve it. Cathy Curtis, founder of Curtis financial planning, and Carolyn McClanahan, founder of life planning, also heard about bitcoin investment opportunities from clients. "I did talk to clients about cryptocurrency and bitcoin," Curtis said Curtis added: "now what I want to say is, if you want to invest in it, go ahead. But I don't see the value of it. More cautious customers will make a detailed consultation before deciding whether to invest in it. Now don't spend too much money on bitcoin, because you've missed the opportunity. "although Curtis admits that he does not see a positive side in bitcoin investment, he is optimistic when it comes to blockchain technology. "Blockchain technology is not easy to be attacked by hackers, it can be applied to many other instries," Curtis said "Blockchain technology is great," McLanahan said when explaining blockchain technology to customers "Blockchain technology will be able to do a lot of great things, so it makes sense to think of it as an investment opportunity," the person said. But we will do that through a diversified portfolio. "
As the saying goes, "if you want to plant flowers, they will not blossom, but if you don't want to plant willows, they will become shade.". McDonald's, a fast-food giant that can't compete with virtual currency and blockchain, issued a "maccoin". Within an hour after its release, its "value" soared more than 30 times! 6.2 million McDonald's commemorative coins are given away for free all over the world, and they are fried up to 3000 yuan on the Internet
since the birth of bitcoin, countless later "money circle bigwigs" have tried to the miraculous surge until bitcoin's own value has been "cut off"
a big Mac in the domestic "golden arch" restaurant is about 21 yuan. However, after the release of the commemorative coin on August 6, the price of a maccoin was quickly fried to more than 600 yuan, and a set (5 pieces) was even fried to a maximum of 3000 yuan
of which 1 has been successfully registered, 0 is under application, 0 is invalid registered and 0 is on sale< According to Bajie's intellectual property statistics, jiaozi Guobao can also be registered with the following trademark categories:
category 1 (chemicals and fertilizers)
category 2 (pigments, paints, dyestuffs and antiseptic procts)
Category 3 (daily chemical procts, washing and care, spices)
category 4 (energy, fuel and grease)
category 5 (drugs, sanitary procts and Nutrition)
category 6 (metal procts Metal building materials, metal materials)
class 7 (mechanical equipment, motor, transmission)
class 8 (hand tools (small), tableware, cold weapons)
class 9 (scientific instruments, electronic procts, security equipment)
class 10 (medical devices, medical supplies, alt supplies)
class 11 (lighting and sanitary ware, cold and hot equipment, electronic equipment, security equipment)
class 10 (medical devices, medical supplies, alt supplies)
class 11 (lighting and sanitary ware, cold and hot equipment Disinfection and purification)
twelfth category (transport tools, carrier parts)
thirteenth categories (arms, pyrotechnics, personal protective spray)
fourteenth category (jewelry, precious metals, Zhong Biao)
fifteenth class (musical instruments, instrumental accessories and accessories)
sixteenth categories (paper, office supplies, stationery teaching aids)
seventeenth category (rubber procts, Insulation and sound insulation materials)
class 18 (bags, leather goods, umbrellas)
class 19 (non-metallic building materials)
class 20 (furniture, furniture parts, cushions)
class 21 (kitchen appliances, household utensils, washing appliances)
class 22 (ropes, awnings, bags)
class 23 (yarn, thread, silk)
class 24 (textiles, bedclothes Towel)
class 25 (clothing, shoes and hats, socks and gloves)
class 26 (accessories, wigs, buttons and zippers)
class 27 (carpet, mat, wallpaper)
class 28 (toys, sports fitness equipment, fishing tackle)
class 29 (cooked food, meat, eggs and milk, cooking oil)
class 30 (pastry, condiments, drinks)
class 31 (fresh, animals and plants Feed seeds)
category 32 (beer, non-alcoholic drinks)
category 33 (wine, alcoholic drinks)
category 34 (tobacco, smoking sets)
category 35 (advertising, business management, marketing)
category 36 (financial affairs, real estate management, pawn guarantee)
category 37 (construction, interior decoration, maintenance)
category 38 (Telecommunications Communication services)
category 39 (transportation and storage, energy distribution, travel services)
category 40 (material processing, printing, sewage treatment)
category 41 (ecation and training, sports activities, entertainment services)
category 42 (R & D quality control, it services, architectural consulting)
category 44 (medical treatment, beauty, gardening)
category 45 (security law, wedding and housekeeping Social services)
1、 National flower: Rose, belongs to Rosaceae, Rosaceae decious shrub, with many needles on the branches, odd pinnate compound leaves, 5-9 leaflets, oval shape and edge thorns. Petals obovate, double to semidouble, purple red and white, fruiting from August to September, oblate. Its branches are soft, drooping and dense with thorns, and its flowering period is only once a year, so it is rarely used in breeding. Recently, its main characteristics are disease resistance and cold tolerance
National Emblem: the national emblem of the United Kingdom, that is, the emblem of the king. The central design is a shield emblem, with three Golden Lions on the red bottom in the upper left and lower right corners, symbolizing England; In the upper right corner is the red lion standing on the top half of the yellow ground, symbolizing Scotland; The lower left corner is a golden harp on a blue background, symbolizing Northern Ireland. Each side of the emblem is guarded by a crowned lion representing England and a unicorn representing Scotland3. National Anthem: God save the queen
4. National treasure: robins, also known as redbreasted Robin
robins (English Name: Robin), also known as Eurasian Robin, belong to birds of the family Turdidae. Is a small songbird, distributed in Europe, Western Asia and northern Africa. British robins often fly to gardeners to find insects to eat. As for their close relatives in the European continent, they are much more wild than them
2. Germany
1. National flower: Blue cornflowers: it is the national flower of Germany, the hometown of happy cornflowers in Europe. It used to be a kind of wild flower. After years of cultivation, it has less "wild" nature, larger flowers and more colors. There are purple, blue, light red, white and other varieties, among which purple and blue are the most precious
it can be found everywhere on the slopes, fields, waterside, roadside, front and back of houses in Germany. It has won the praise and love of the German people for its beautiful color, beautiful flower shape, fragrant breath and tenacious vitality, so it is regarded as the national flower
2. National Emblem: the national emblem of Germany is a golden shield with a red claw, a red beak and an eagle with two wings spread out on the shield, which is called the "federal Eagle". The black eagle symbolizes strength and courage, and reflects with the three colors of the national flag
this national emblem re uses the national emblem design of Weimar Republic (1919-1935), which was adopted by the government of the Federal Republic of Germany in 1950. The current version is designed in 1928 by Tobias Schwab (1887 – 1967). The current national emblem also became the new national emblem of Germany after the reunification of Germany before Christmas 1990
3. National Anthem: German anthem
4. National treasure: grizzly bear and freshwater salmon. Grizzly bear is also an auspicious animal in Berlin
grizzly bears and freshwater salmon used to be the most common wild animals and fish in Germany. With the destruction and pollution of the natural environment, grizzly bears have disappeared from German land for many years, and freshwater salmon are on the verge of extinction. Today, Grizzlies are rediscovered in the German Alps. Grizzly bears and freshwater salmon are listed as national animals in Germany in 2005
French flower: Iris pallida Lamarck is a perennial herb belonging to iris genus of Iridaceaerhizomes were thick and thick, oblate, obliquely extended, annular, yellowish brown or brown; The fibrous roots are thick and yellow white. The leaves are gray green, covered with white powder, sword shaped. The flower stems are smooth, green and powdery; Bracts 3, membranous, silvery white, ovoid or broadly ovoid, containing 1-2 flowers
The outer perianth lobes are elliptic or obovate, the tip is penlous, and the claws are narrowly cuneate. The inner perianth lobes are round or obovate, and the claws are narrowly cuneate. Capsule ovoid cylindrical, blunt tip, beakless, mature from the top down into three petals; Seeds pear shaped, brown. The flowering period is may, and the fruiting period is June to September National Emblem: France has no formal national emblem, but the traditional emblem was used in diplomatic occasions in 1912 and submitted to the United Nations in 1953. The logo of the French government, the head picture is Mariana, the little words on it are: freedom, equality, fraternity. The following big letter is: the French Republic3. National Anthem: Marseilles
4. National treasure: & quot; Colette & quot;. The national treasure of France is not a thing, but a woman writer named klaette
as soon as Colette's novel "clephantine at school" came out, it immediately caused a sensation in Paris. The novel was published again and again, and the name of "clephantine" became a household name. Later, Colette wrote dozens of works such as "clephantine in Paris", which were dedicated to the French people and the world, thus winning people's respect. In 1954, when klaette died, the government made an exception to hold a grand state funeral for her and called her "the national treasure of France"
source of reference:
Network - UK
Network - Germany
Network - France
where: me - rated braking torque, nm
d-diameter of brake wheel m
p-rated spring working force, N< br /> μ— The friction coefficient is 0.4< br /> η— The total transmission efficiency of the mechanism is 0.9
I3 - spring lever ratio;