According to the report of Flight International on April 16th, the US Navy and Marine Corps successfully completed the first test of the concept of "lightning carrier". Twenty F-35B fighters with short take-off and vertical landing took off from the US Navy "Tripoli" amphibious assault ship to perform fast-paced operations.

　　The concept of "Lightning Carrier" was formally put forward in 2016, based on the existing "F-35B vertical takeoff and landing aircraft+amphibious assault ship" model of the US military. The name of "Lightning" in the concept comes from the F-35B Lightning II Joint Strike Fighter, and F-35B is just one of the F-35 Lightning II Joint Strike Fighter (JSF) models.

　　F-35 "Lightning II" Joint Strike Fighter (JSF) is a single-seat single-engine multi-role fighter and a low-order auxiliary aircraft of F-22. It has strong stealth capability, advanced avionics system and certain supersonic cruise capability, and is mainly used for frontline support, target bombing, air defense interception and other tasks. It is divided into three types: conventional takeoff and landing (CTOL)F-35A, short takeoff/vertical landing (STOVL)F-35B and carrier-based (CV)F-35C. Undoubtedly, in the future competition for air superiority, F-35, as one of the world’s advanced fifth-generation aircraft, has a very high photogenic rate. So how do you distinguish them in appearance?

　　one

　　plane emblem/logo

　　The F-35 "Lightning II" Joint Strike Fighter (JSF) was mainly developed by Lockheed Martin of the United States, and eight countries including Britain, Italy, Netherlands, Denmark, Norway, Turkey, Australia and Canada participated in the development, with a total cost of $276 billion.

　　In addition to R&D abroad, South Korea, Japan and Israel also vigorously purchased the F-35 to enhance the overall air combat capability. Therefore, according to the current data, a total of 12 countries have decided to equip the F-35:

　　According to the above picture, there is Israel’s Star of David emblem above the wing, which is an F-35A. (Architecture A, called F-35I, shows the F-35A fighter equipped by Israel Air Force. )

　　two

　　character

　　The U.S. Air Force, Navy and Marine Corps are equipped with three types of F-35 fighters, which are not a panacea according to their badges. If it is an F-35 equipped by the US military itself, it can be roughly distinguished by the characters in the belly position below the horizontal tail:

　　1. Symbol of the United States Air Force (F-35A of the United States Air Force)

　　2.NAVY (F-35C of the US Navy)

　　3.MARINES (The United States Marine Corps purchased two models, F-35B and F-35C).

　　In addition, there are several F-35Cs in the US Navy that also say "MARINES". But what should I do if I can’t see the military emblem or characters from the photo point of view? This uses the "shape resolution method".

　　three

　　wing span

　　Both F-35A and F-35B have a wingspan of 10.7 meters, while F-35C adopts a large wingspan design to reduce the landing speed, and the wingspan is increased to 13.1 meters and can be folded, which is the largest of the three sub-models.

　　four

　　nose gear

　　In order to withstand the impact of the ship, the F-35C has thickened the front landing gear, and changed from the basic single-wheel landing gear to the two-wheel landing gear, and the front landing gear has the unique ejection pull rod of the ejection take-off fighter. The following figure shows F-35A, F-35B and F-35C in turn.

　　five

　　Landing tail hook

　　The landing of the F-35C needs to be stopped, and a repeatedly used stern hook is equipped under the engine. Although the F-35A will also be equipped with crash landing tail hook, it is currently testing the tail hook crash landing, and even if it is installed, it will be one-off.

　　six

　　regula

　　The leading edge of the main wing of the F-35C is moved forward to increase the wing area, which leads to the strake wing in both the F-35A and the F-35B, but it is cancelled on the F-35C. The following figure shows F-35A, F-35B and F-35C in turn.

　　seven

　　Jibei

　　F-35B is a short takeoff/vertical takeoff and landing type. Due to the special requirements of takeoff and landing mode, the engine of this type adopts a lift fan device. When viewed from the top, the rear of the cockpit is flat, and the upper cover of the lift fan and the cover plate of the auxiliary air inlet will open upward during the takeoff and landing.

　　eight

　　Machine gun

　　The F-35A is the only one of the three sub-models, which adopts the built-in gun design and is equipped with a GAU-22/A four-tube 25mm gatling built-in gun. Therefore, there are obvious protrusions on the front upper part of the left wing of the fuselage, which is a remarkable feature of the A-type aircraft. F-35B and F-35C are not equipped with fixed cannon, so it is enough to mount the cannon pod on the belly line when necessary.

　　nine

　　Verifier, test aircraft and

　　Low speed initial production aircraft

　　The test aircraft and the initial low-speed production F-35 are usually numbered on the fuselage. For example, before the mass production of the F-35A, the aircraft fuselage numbers AA-01, AF-01 to AF-07 were even directly marked with F-35A, all of which contained "A"; F-35B has BF-01 to BF-04 with "B" in them; F-35C has CF-01 to CF-05 before the first mass-produced CF-06, all with "C".

CCTV News:An earthquake of magnitude 6.2 occurred in Jishishan County, Linxia Prefecture, Gansu Province. At present, the State Council Earthquake Relief Headquarters and Emergency Management Department have upgraded the national earthquake emergency response to Grade II.

The National Disaster Prevention, Mitigation and Relief Committee and the Emergency Management Department upgraded the national emergency response to the second level, and on the basis of allocating 42,500 central relief materials to the disaster-stricken areas in Gansu in the early stage, the second batch of 47,500 central relief materials was urgently allocated to Gansu. 21,500 pieces of central relief materials were urgently allocated to Qinghai. Central relief materials include cotton tents, cotton coats and cotton bedding.

As of 10 o’clock today (December 19), 186 people were injured in the earthquake. The National Health and Wellness Commission guided the establishment of a joint expert group to consult with local medical staff on the wounded.

The National Health and Wellness Commission has urgently dispatched medical emergency workers and multi-disciplinary national experts to the disaster area, and organized three national emergency medical rescue teams in Sichuan, Shaanxi and Ningxia to go to support as soon as possible.

Gansu Electric Power Company, the State Grid Corporation, launched the earthquake emergency response at the first time, and sent 18 emergency repair teams, 11 power generation vehicles and 15 generators to participate in the on-site repair. Up to now, two 35 kV lines have all resumed power transmission, the main lines of 12 10 kV lines have resumed, and some branches and sections are stepping up emergency repairs, and 88.36% of users in Jishishan County have resumed power supply.

In addition, the Ministry of Housing and Urban-Rural Development launched the second-level earthquake emergency response to guide the disaster-stricken areas to carry out emergency safety assessment, emergency repair and other work for housing buildings and municipal facilities after the earthquake.

The China Meteorological Bureau launched the second-level emergency response of meteorological services for earthquake disasters today. It is estimated that today, the Jishishan earthquake zone and its surrounding areas will be mainly sunny, and the lowest temperature from midnight to early morning will be low, at MINUS 15℃-mdash; Between minus 9℃.

　　　　　　 According to the analysis of the National Seismological Network Center, this earthquake belongs to thrust rupture, which is caused by the mutual extrusion of the crust on both sides of the fault. Southeast Gansu is the northern part of the North-South seismic belt in China, and the regional geological tectonic activity is relatively strong. As of 10: 00 a.m., there were 9 aftershocks of magnitude 3 or above, the largest of which was magnitude 4.1. It is unlikely that aftershocks of greater magnitude will occur in the future, but it is expected that aftershock activities will continue for some time. It is reported that the vicinity of Jishishan County in Linxia Prefecture is historically an earthquake-prone area.

　　　　　　 The two departments urgently allocated 200 million yuan of disaster relief funds to Qinghai, Gansu.

　　　　　　 The reporter learned from the Emergency Management Department that today, the Ministry of Finance and the Emergency Management Department urgently allocated 200 million yuan of central natural disaster relief funds to Gansu and Qinghai provinces. Among them, 150 million yuan in Gansu and 50 million yuan in Qinghai support local earthquake relief work, ensure the safety of people’s lives and property, and minimize disaster losses and impacts.

　　　　　　 National Development and Reform Commission: Some materials are arriving in Jishishan, Gansu.

　　　　　　 After the Jishishan earthquake in Gansu Province, the National Development and Reform Commission immediately launched an emergency response mechanism to ensure the supply of energy, electricity and living materials, actively guided power grid enterprises to repair damaged power facilities, organized emergency power supply, and fully guaranteed people’s livelihood and key electricity demand. Organize the Grain and Material Reserve Bureau to allocate cotton tents, quilts, cotton coats and other relief materials as soon as possible. At present, some materials are arriving one after another. The National Development and Reform Commission will continue to coordinate relevant departments and enterprises, pay close attention to and track the first-line disasters, and earnestly do a good job in security work.

　　　　　　 Orderly restoration of the lines affected by the earthquake in Lanzhou Bureau of China Railway

　　　　　　 The reporter learned from Lanzhou Bureau of China Railway that as of 9: 00 this morning, due to the earthquake, the ordinary trains in lanzhou railway administration were delayed by 28 trains, with a maximum delay of 5 hours and 40 minutes, and the trains of EMU were delayed by 21 trains, with a maximum delay of 1 hour. After thorough investigation and elimination of hidden dangers, there is no blocked section in the pipeline, and the Baolan line, Zhongchuan line and Lanzhou hub area resume normal speed operation.

The National Health and Health Commission appointed a working group to guide the earthquake medical emergency work.

After the 6.2-magnitude earthquake occurred in Jishishan County, Linxia Prefecture, Gansu Province, the National Health and Wellness Commission urgently dispatched a working group to the disaster area to guide medical emergency work.

The National Health and Wellness Committee organized responsible comrades for medical emergency work and national experts from Peking Union Medical College Hospital and west china hospital for critical illness, orthopedics, neurosurgery and general surgery to rush to Gansu; Organize three national emergency medical rescue teams in Sichuan, Shaanxi and Ningxia, which are close to Gansu Province, to assemble quickly, and will go to Gansu Province and Qinghai Province for support as soon as possible.

After the accident, the health department of Gansu Province immediately launched an emergency response, and immediately directed the dispatch of 33 professional vehicles such as ambulances and 173 medical staff to the scene to carry out the treatment and transportation of the wounded. Qinghai Province dispatched 68 ambulances, and more than 40 provincial and municipal experts carried out rescue at the scene.

　　　　　　 As of 6: 30 today, more than 300 wounded people have been treated in the disaster area. The National Health and Wellness Commission has guided the establishment of a joint expert group to consult with local medical staff to investigate the hidden injuries one by one, and make a diagnosis and treatment plan with one person and one policy to fully treat the wounded. The National Health and Wellness Commission will send more medical rescue forces at any time according to the needs of treatment to ensure the life safety and physical health of the people in the disaster areas to the maximum extent.

The China Red Cross Society urgently launched the second-level emergency response.

After the earthquake, the China Red Cross Society launched a second-level emergency response and sent a working group to the disaster area to carry out earthquake relief work. At the same time, the cooperation mechanism of the Northwest Cooperation Zone of Red Cross Emergency Rescue was launched, and rescue teams such as Red Cross search and rescue, medical care and relief were sent to the disaster area to carry out rescue. The first batch of emergency relief funds was 5 million yuan, and 700 cotton tents, 2,000 folding beds, 12,700 quilts, 4,500 cotton coats and 1,000 family bags were allocated. The Red Cross Society of Gansu Province has allocated 200 cotton tents, 2,000 beds of quilts and 2,000 cotton coats to support disaster relief. The first batch of relief materials arrived in the disaster area around 9 am on the 19th, and the rescue team has arrived in the disaster area to carry out rescue work.

　　Recently, international gold and silver prices have risen sharply again. As of the close of May 17, the main contract of COMEX gold in the New York Mercantile Exchange was reported at $2,419.8 per ounce, up 1.44% on that day, approaching the historical high of $2,448.8 per ounce set in mid-April; COMEX’s main silver contract rose 6.36% to $31.775 per ounce, the highest since February 2013.

　　According to "The reporter of Daily understands that on May 19th, domestic gold jewelry brands quickly raised the retail price of gold, and many brand prices have reached a new high.The listing price of gold jewelry on that day was 740 yuan/gram.、、、It is 739 yuan/gram.

　　On the afternoon of May 19th, the reporter saw in a number of gold and jewelry brand stores on the first floor of a large shopping mall in Shenzhen that on the eve of "520", many stores launched promotional activities, and young consumers were stopping to choose. Ms. Lu, the person in charge of a gold jewelry brand store, told the Daily reporter: "During the’ 520′ event, the purchase of a single piece can be reduced from 20 yuan/gram to 30 yuan/gram."

　　Some people buy and some people recycle. A person in charge of a merchant in Shenzhen Shuibei Market told the Daily reporter: "Today, the gold price of our store is 571 yuan/gram, and the recycling price is 561 yuan/gram. Some customers planned to sell some time ago, and the price of gold rose sharply this weekend, and they all sold it in unison. The amount of gold recovered in our store these two days is very large. "

　　The impact of rising gold prices on the gold jewelry industry has attracted attention.According to the research report released on May 19th, since the end of 2022, the price of gold has increased by more than 40%. Gold products have both consumption and investment attributes, and also provide consumers with better consumer demand support. Although the rising price of gold will disturb the consumption to some extent, it will positively boost the profit rate of gold jewelry companies. On the whole, the rise of gold price has more advantages than disadvantages for the performance growth of gold jewelry enterprises.

　　Bai Wen, vice chairman of China Enterprise Capital Alliance, told the Securities Daily reporter: "For those gold jewelry companies that have more gold reserves in the early stage, the profit rate is expected to increase more with the rise of gold prices."

　　Gold, silver, etcThe rise in prices comes from the influence of multiple factors. In terms of gold, the fundamentals of supply and demand are the fundamental reasons for pushing up the price of gold. according toAccording to the association data, in the first quarter of this year, the national gold consumption was 308.905 tons, an increase of 5.94% compared with the same period in 2023. On the macro level, the research report said that gold prices at home and abroad are in good shape due to the expected increase in overseas interest rate cuts and the resurgence of geopolitical risks in the Middle East.

　　In terms of silver, Ye Qianning, an analyst at GF Futures, said that on the fundamentals of supply and demand, there was a supply gap in silver for three years. On the macro level, the expectation of interest rate cuts in the United States has been consolidated during the year. In terms of technical trading sentiment, silver technical indicators have turned bullish, and the current speculative capital inflows have accelerated.

　　For the late trend of gold and silver prices, many analysts expressed their views.Rising space. Wang Xu, a senior investment consultant of Jufeng Investment, told the Securities Daily reporter: "In the long run, in the context of the increasing holdings of central banks, there is still room for international gold prices to rise, and gold investment is still a good choice."

　　Zhao Jian, fund manager of UBS SDIC, said that major economies will gradually enter the easing cycle, which may push the prices of silver and other products up for a long time. The rebound of global manufacturing industry will increase the demand for upstream resources and industrial products. Considering that the capital expenditure of most upstream resources industries in the past few years is at a historically low level, many commodity prices have significant upward elasticity.

　　It’s too fierce! Has reached 740 yuan/gram! The retail price of domestic gold shops rose overnight, and the price of 12 yuan/gram silver also reached an 11-year high.

　　Silver is going crazy! "may be on the verge of a bull market"

　　The price of gold reaches 740 yuan/gram! Gold and silver have gone crazy. Is there room for growth?

　　Gold exploded again! "The stores are too crowded."

　　These A-share companies may benefit from soaring gold prices (attached list)

Special feature of 1905 film network On July 30th, the first VR movie about youth love in China was officially released. As a film focusing on immersive experience, brand-new audio-visual and beautiful youth journey, the public release of this 20-minute work shows to some extent that the technical experiment of VR film is gradually moving towards the mainstream market.

In the current movie market, VR movies have not yet formed a scale, but today, with the popularity of 3D movies, VR movies can bring viewers a more immersive viewing experience than 3D or even 4D movies. More and more filmmakers have paid attention to the field of VR, and more and more people have begun to devote themselves to the creative experiments of VR movies. The future of VR film has infinite possibilities, and many people are curious: will it mark another beginning of the film as it did then?

When mentioning the differences between VR film shooting and traditional movies, the director of "Secrets in Time Projection" mentioned: "When we shoot, we need to always wear heavy title equipment, which is different from the monitor when shooting traditional movies. The picture presented inside the title is a virtual shadow. After shooting, we have to export its material on the spot and make rough cuts to see the shooting effect."

Because the VR movie needs the audience to browse 360 degrees in all directions, it is very different from the traditional shooting methods, and the picture presented is not on a plane, but inside a sphere, which is a huge challenge for the creative team.

Not only that, VR needs to interact with the audience to break the dimensional wall, so that the audience can focus on the parts of interest independently in the scene. Because the audience’s eyes are no longer limited to one plane, how to mobilize the audience and let the audience follow the plot has become a challenge for VR film creation.

Director Yao Tingting made his own attempt: using sound design to guide the line of sight. For example, there is a scene in the film where the plane flies from the sky, and the audience will naturally be attracted by the sound. At this time, the audience will coincide with the heroine’s line of sight in the film, thus producing a chemical effect of interaction with the role.

Although VR movies are usually rated as "like games" by the audience, the sense of game should not be the development direction of VR movies. Therefore, how to distinguish the boundaries between VR movies and games has become an important topic for creators. Director Yao Tingting mentioned that he came into contact with VR games first and was influenced by the games before he came up with the idea of shooting VR movies.

When she filmed "The Secret in Time Projection", she deliberately weakened the sense of game and used the idea of drama to create. However, because the VR film made the traditional audio-visual language invalid, after the film was released, there were still audiences who bluntly said that it was like playing a youth love game.

At present, the conditions for shooting and watching VR movies are still immature, VR theaters are scarce, and there is still a long way to go before they are popularized. There is no small room for improvement both technically and artistically. But people also realize that the VR future envisioned by director Ready Player One may be slowly approaching us.

It can be expected that VR movies, like the "train" that slowly entered the station a hundred years ago, brought unprecedented shock to the audience.

Today’s film reviewDirector’s observation:I saw this film in the traditional propaganda materials of the previous film, but I haven’t seen the VR film and heard some controversies, so I operated this topic with curiosity. Two scenes were constructed to present the dialogue between the viewers and the main creators. The new visual technology experience is interesting, but the presentation of the content still has barriers with the traditional film narrative! Furthermore, I also understand that it is not easy for the industry capital and the practitioners to pay attention to all aspects after the heat wave fades. For the first time, in the first episode of the program, the host in the shed+the host on location+the director, was Xiao Zhang okay? Cheer yourself up ~ oh yeah! (Xiaoli, director of Today’s Film Review.)