2. Aurora is a high-altitude weather phenomenon. The aurora is a very beautiful natural phenomenon that usually occurs in the high latitudes of the Earth, especially near the North and South poles. It is mainly manifested as the sky is glittering with colorful lights, which change with time andWeather conditions change, taking on different shapes and colors. 3, Aurora is a colorful plasma phenomenon, which occurs because the sun charged particles (solar wind) into the Earth's magnetic field, high above the Earth near the north and south poles, the night appears brilliant and beautiful. They are called the Aurora australis at the South Pole and the Northern Lights at the North Pole. Earth's auroras are caused by the excitation (or ionization) of molecules or atoms in the upper atmosphere by a stream of high-energy charged particles (solar wind) from the Earth's magnetosphere or the sun.
4, some analysis, aurora may be related to sunspot activity. It has been found thatAfter such a phenomenon, when a large sunspot passes through the sun's central meridian, after 20 to 40 hours, the Earth must have an aurora. This is because when the sun produces sunspots, it throws out powerful streams of charged particles - protons and electrons - from the sunspot region.
The story of the sinking of the Titanic (April 15, 1912) is true. In fact, 1,502 people died when the Titanic sank, and only 705 were rescued. The setting of the film is based on the sinking of the Titanic, and the love story is fake. Similar reports have China Daily website news: According to the Daily Express and the Sun, the movie "Titanic" is fictionalThe love touched countless people.
The Titanic wreck was real! Some of the scenes in the crash are real! Like women and children on board.
History has Titanic. It sank on its first voyage. The RMS Titanic, also known as the Titanic, was an Olympic-class cruise ship operated by the British White Star Line. At about 23:40 on 14 April 1912, Titanic collided with an iceberg, breaking the starboard bow to midship and flooding five watertight compartments.
The Titanic incident was real, TitanicAt that time, she was the largest passenger ship in the world with the most luxurious internal facilities, and had the reputation of "unsinkable". Unfortunately, on her maiden voyage, the Titanic was doomed - she set sail from Southampton, England, via Cherbourg-Oakteville, France, and Cobh, Ireland, en route to New York.
The sinking of the Titanic (April 15, 1912) is true. In fact, when the Titanic sank, 1,502 people died and only 705 people were saved. The movie is based on the Titanic sinking. So love stories are fake, too. But little known in real life is that when the Titanic, had really staged a emotional "life and death love".
Unicom Tencent King card 19 yuan package includes Youku video, Xiami video, book flag novel, UC browser, Autonavi map, iQiyi, good-looking video, fast hand and other super APP national directional traffic sharing. Non-directional traffic 1 yuan 800M (national)/day, and call 100 minutes. Tencent King card basic monthly rent 19 yuan/month, the feeAt present, there are four products: Tencent King card, Tencent King card, Tencent Tianking card, Tencent Music Xiaowang card (suspended sale), Tencent Video Xiaowang card (suspended sale).
Tencent King Card 19 yuan package is a mobile card package, jointly launched by China Unicom and Tencent. The package contains 30GB of exclusive Tencent King Card traffic, which can be used for Tencent applications, including QQ, wechat, Tencent video, Tencent Music, QQ Reading, Tencent News and nearly 200 other applications.
The Tencent King Card 19 yuan package costs 19 yuan a month, including caller ID service. With this package, users can enjoy the maximumSubject to 30GB of Tencent-only traffic. If you exceed the exclusive traffic of Tencent, other traffic charges are charged according to the standard of 1 yuan /GB, effective on the same day. Domestic voice calls (including video calls) cost 0.1 yuan per minute, while domestic calls are free.
King card is a monthly rental fee of 19 yuan, Tencent application traffic is free, non-Tencent application if the number belongs to the place of the use of traffic daily rental treasure billing method, 1 yuan /500MB, cleared every day. That is to say, according to 30 days a natural month, 30 yuan a month can use almost 16GB of free flow, totalWhat are the cards
SONY: A Japanese brand known for its high-quality audio products, SONY headphones excel in sound quality, comfort and durability, especially in the mid-to-high segment. Sennheiser: A German brand, Sennheiser is one of the world's leading audio equipment manufacturers. Sennheiser's headphones have a delicate and balanced sound quality, especially in the bass part, which has a deep and powerful performance.
Best earphone brands: Beats, SONY, Triangle, Doc, Sennheiser. Beats Apple Inc., the Beats brand was created in 2006China, a world-renowned fashion headphone brand, was acquired by Apple in 2014 and became its independent headphone brand.
Good headphones brands are: AKG (Love technology), Grado (Goethe), Beyerdynamic (Baiya power), millet circle iron headphones Pro, O-Fresh stereo headphones. AKG AKG (Chinese trademark: Love Technology), one of the well-known brands in the audio field, one of the world's four largest headphone manufacturers.
Headphones with good sound quality: Sennheiser, Iron Triangle, Baia Power, Shure, AKG. Founded in 1945, Sennheiser is a German audio equipment manufacturer. Its products include headphones and microphones. Offering a wide range of headphones for different types of people is one of the most popular brands in the world. Iron Triangle, one of the world's top audio equipment manufacturers, was founded by Panasonic in 1962 and is one of the relatively young brands on the list.
Headphones with good sound quality are: SONY, Sennheiser, Iron Triangle, Rambler, Philips, AKG and so on. SONY SONY is a world giant, with the world's most powerful brand. SONY was founded in 1946It was co-founded by Daika Ibuka and Akio Morita. SONY's headphones feature excellent audio technology and products, including noise-cancelling headphones and Bluetooth earbuds.
In the mechanical field GPS has another meaning: Geometrical Product Specifications - GPS. Another interpretation is that G/s (GB per s) is defined using GPS positioning satellites, in real time on a global scaleThe system for positioning and navigation is called the Global Positioning Satellite System (GPS). GPS can provide vehicle positioning, anti-theft, anti-robbery, driving route monitoring and call command and other functions.
GPS is an abbreviation for GlobalPositioningSystem (GPS), which is a satellite-based positioning system for obtaining geographic location information and accurate universal coordinated time. The system consists of 24 satellites placed in orbit by the U.S. government. GPS provides accurate navigation to within 10 meters. It can be in anyWork in weather conditions, anywhere in the world. There is no order or installation fee for using GPS.
GPS is the abbreviation of Global Positioning System (Global Positioning System). GPS began as a U.S. military project in 1958 and became operational in 1964. In the 1970s, the United States Army, navy and air force jointly developed a new generation of satellite positioning system GPS.
GPS is the Global Positioning System. Simply put, this isA satellite system consisting of 24 satellites covering the globe. This system can ensure that at any time, any point on the earth can observe four satellites at the same time, to ensure that the satellite can collect the longitude, latitude and height of the observation point, in order to achieve navigation, positioning, timing and other functions.
1, the fuel consumption of the aircraft is 0.1 to 0.5 kg per kilometer. Airplanes need 0.1 to 0.5 kilograms of fuel consumption per kilometer, but generallyThe default is an airliner, if it is a combat aircraft, then the fuel consumption per kilometer is 0.7 to 5 kilograms, and the fuel consumption has a large relationship with the fuel consumption rate and the flight time.
2. The fuel consumption of the aircraft is about 38 liters. The economy class of a plane can carry 186 people, the fuel consumption is about 3,000 kilograms per hour, and the plane can fly about 900 kilometers per hour. From this data, you can calculate the 100 km fuel consumption of the aircraft, that is, the consumption of 3,000 kilograms of oil per kilometer divided by 900 kilometers, and then divided by 186 people, the result is about 79 kilograms.
3, the fuel consumption of the aircraft is: 80 eachThe seats consume 3 kg of fuel per 100 km, and the 550 seats consume 1,595 kg of fuel per 100 km. A 416-seat Boeing 747. The average fuel consumption is 1 liter per 100 kilometers per seat, 5 kilograms per 100 kilometers per person, and 1040 kilograms per 100 kilometers for 416 seats. Actual fuel consumption (kg) = kg thrust × fuel consumption × flight hours.