New Yorkers are happy to return to normal life after being vaccinated against Covid-19. Photo: AP According to the AP news agency, starting May 19, New Yorkers and Americans who have received the Covid-19 vaccine can remove their masks in most situations and restaurants, shops, and gyms. Many other businesses can also reopen at full capacity if they make sure all patrons are vaccinated. This week, the subway will operate around the clock. The midnight curfew for bars and restaurants will end later this month. Broadways tickets are on sale again, although the shows won’t start until September. Now is the time for New York to shed the image of a city that was defeated by the virus last spring and bounce back, as it was featured on the latest cover of The New Yorker, US officials said. It was an image of a giant door that partially opened the horizon to let a ray of light in. Can New York go back to the way it was? “Probably 75%…It will definitely come back,” says Mark Kumar, 24, a personal trainer. However, Ameen Deen, 63, said: ‘Full sense of normalcy won’t come anytime soon. There are too many deaths, too much suffering and inequality.” Last spring, the largest city in the US was the deadliest coronavirus hotspot in the US with more than 21,000 deaths in just two months. Black patients of Hispanic descent have higher mortality rates than whites and Asian Americans. Photo: AP Hospitals are overflowing with patients and corpses. Cold trailers were used as makeshift morgues and tents were set up in Central Park as a makeshift hospital to treat Covid-19. The bustling streets of New York became quiet, making room for ambulance sirens and nighttime applause from the windows of paramedic apartments. After more than a year of uncertainty, closure and reopening, the city hopes vaccinations will make things better. To date, about 48% of New Yorkers have received at least one dose of the Covid-19 vaccine. The number of deaths, infections and hospitalizations from Covid-19 has dropped sharply in recent weeks. Many parts of the US and the world are gradually returning to normal after the Covid-19 crisis, which has claimed the lives of 3.4 million people globally, including more than 587,000 in the US. . Las Vegas casinos are reopening at 100% capacity with no social distancing requirements. Disneyland in California also reopened late last month after shutting down for 400 days. Massachusetts also announced that all restrictions related to Covid-19 will end at the end of Memorial Day weekend. France also reopened yesterday, with the Eiffel Tower, cafes and cinemas, and the Louvre also welcoming visitors for the first time in months. Hoai Linh

In the region, the South and the Central Highlands provinces, many places are having rain and unfavorable weather. This will directly affect the observation of the lunar eclipse. In the sky of Hanoi, according to the forecast about 6:30 p.m The Moon will begin to appear on the horizon. At this time, it is possible that the Moon has appeared but is located right on the horizon and is being obscured by buildings. In Hanoi, viewers can observe the Lunar Eclipse in the direction between East and Southeast. However, right now (18:20) there are some pretty big clouds near the horizon. Photo at 6:20 pm in Hanoi Photos at 6:30 p.m. The sun was slowly disappearing. Theoretically, the Moon is now close to the horizon to the East, Southeast. From 6:45 pm to 7:00 pm, when the moon is high enough, this is convenient for viewers to observe. According to reflection, in Ninh Thuan, the Moon has begun to rise and viewers can observe. In Da Nang, the weather is nice and viewers can observe well. The Moon now has just finished its total phase, the Moon is gradually moving out of the shadow. Pictures at 6:30 pm In Ha Tinh: The coastal area can be observed well. Viewers can find the Moon in the East, Southeast. Some mountainous areas of Ha Tinh may have rain, making it difficult to observe. In Taiwan, a place very close to Vietnam, the weather conditions are favorable, so observing the lunar eclipse is quite easy. Below is an image of a lunar eclipse recorded in Japan. At this time, the Moon has passed its total phase and is gradually leaving the dark side of the Earth. Pictures in Japan Quang Ngai: The lunar eclipse has begun to appear. The image was recorded by a universal observatory telescope. The Moon in Quang Ngai The moon appeared dimly in the sky of Hanoi. The moon appeared dimly in the sky of Hanoi. Nha Trang and Phu Yen: The moon is rising and people can observe a partial lunar eclipse. Binh Dinh, Quang Nam: The weather is good and many places can observe the lunar eclipse. 19h00: The lunar eclipse was visible in Hanoi. The image was recorded under a telescope. Observation will be more difficult but still doable with the naked eye. Lunar eclipse can be observed in Hanoi When the Sun, Earth, and Moon are aligned or approximately aligned, part or all of the Moon will be obscured from the Sun by the Earth, causing a lunar eclipse. Lunar eclipse image recorded at 19:00 in Quang Ngai. 40% of the Moon’s area has entered the Earth’s semi-dark region. Lunar eclipse image recorded at 19:00 in Quang Ngai. The image of the lunar eclipse in Hanoi was recorded under a simple telescope at 19:15. It can be seen that 50% of the Moon’s area has left the Earth’s shadow. Photo taken during the Lunar Eclipse in Hanoi at 19:15 on May 26. At this time in some places in Hanoi it is windy. This will have a certain effect on those observing with a telescope. In Ho Chi Minh City at this time it is cloudy, viewers have almost no chance to observe the lunar eclipse. In Hanoi, 60% of the Moon has left the Earth’s shadow. According to forecast, the lunar eclipse will end at 19:52′. Thus, there is only about 30 minutes left for viewers to observe this phenomenon. 19:30: The lunar eclipse was recorded in Hanoi at 19:30. At this time, 70% of the area is bright again. 70% of the Moon was bright again at 19:30, observed from Hanoi. 19:45 : Image of lunar eclipse recorded in Hanoi. It can be seen that the Moon has almost completely come out of the shadow of the Earth. The Moon has almost completely come out of the Earth’s shadow. 19:55 : In Hanoi, the partial lunar eclipse has ended. The Moon is now moving into the Earth’s semi-dark region. In about 1 hour, from 20h00 to 20h49, there will be a penumbral lunar eclipse. At this point, the Moon will be slightly darker and dimmer than usual. After 9pm tonight (May 26), the lunar eclipse will end completely. At that time, the entire Moon will be directly illuminated by the Sun again. Live: Total lunar eclipse and super moon Vietnam on May 26 26 Today’s lunar eclipse coincides with the time when the Moon is at its closest position to the Earth. Therefore, observers will be able to witness the dual phenomenon of lunar eclipse and supermoon. Simulation of a lunar eclipse. This lunar eclipse in Vietnam will be different when accompanied by a super blood moon phenomenon. In the legends of some cultures, lunar eclipses are often associated with some bad luck. In ancient times, it was believed that a lunar eclipse was a sign of great change and foreshadowed bad luck to come. In modern times, many people still hold bad views about this phenomenon. Readers can visit here for a correct and accurate understanding of the lunar eclipse. This year, Vietnam is located in a geographical area that can observe the lunar eclipse well. However, depending on the region, the ability to observe as well as the time to observe the lunar eclipse varies between provinces. According to the National Center for Hydro-Meteorological Forecasting, some areas this afternoon will have very favorable weather to observe the lunar eclipse. Readers can visit here to know exactly where they live, whether this phenomenon can be observed. Landmarks of the afternoon lunar eclipse, May 26 (Vietnam time): – 15:47: A penumbral eclipse begins, the Moon enters the Earth’s penumbra and begins to decrease in brightness. – 4:44 pm: A partial lunar eclipse begins, the Moon enters the Earth’s shadow and gradually becomes partially obscured. – 18h18: The lunar eclipse is at its maximum, the Moon is located near the center of the shadow. – 6:25pm: The total lunar eclipse ended, the Moon began to emerge from the Earth’s shadow. – 6:35 pm: when the Moon rises from the horizon. – 19:52: The partial lunar eclipse ends, the Moon enters the Earth’s semi-dark region. – 20:49: The penumbral eclipse ends, the Moon comes out of the Earth’s penumbra.

With a length of 25 meters, the transparent outdoor swimming pool is designed by HAL Architects. It is made of acrylic and can hold up to 148,000 gallons of water or about 560,240 liters of water. The penetrating swimming pool hangs between two high-rise buildings in England. With four glass sides, the pool is located right next to the rooftop bar and spa services. Once opened, the pool in the sky will become the only place to soak in this way in the UK. This swimming pool not only gives swimmers a breathtaking view of the parliament building, London Eye, the city skyline of London, but also an enjoyable experience floating in the air. Tens of meters from the ground, nothing but a transparent layer of glass makes swimmers feel like they are looking down the depths below. It is known that transporting the bool from Colorado, across the Atlantic has been an adventure, but it is more difficult to design and install it between two new residential buildings. Thanks to modern technology and architectural innovations, Sky Pool is able to process the natural movements of the two 10-story buildings with which it connects. According to HAL Architects, it is not rigidly connected at both ends; it can slide from side to side while still retaining watertight integrity. “The vision for Sky Pool comes from a desire to cross the boundaries of construction and engineering capabilities, Ecoworld Ballymore wants to do something that has never been done before,” said Ballymore President – developer of Ambassador Gardens. . “We also wanted to cross boundaries on every aspect of the design, the transparent structure of the swimming pool that is the result of many significant advances in technology over the past decade. The experience in the pool will give off a feeling.” unique, like floating in the air in central London, “added President Ballymore. The unique Sky Pool is scheduled to open on May 19, 2021.

The penetrating swimming pool hangs between two high-rise buildings in England Transparent swimming pool is located between two apartment buildings in Ambassador Gardens, Nine Elms of London, England. The designer named the project ‘swimming pool in the sky’ true to the feeling when the experience of swimming in a transparent swimming pool hovered about 35 meters from the ground. Swimming pool is 25 meters long, 3.3 meters deep, frames made of Acrylic, can hold up to 148,000 gallons of water, equivalent to about 560,240 liters of water. With four glass sides, the pool is located right next to the rooftop bar and spa services. Once opened, the pool in the sky will become the only place to soak in this way in the UK. The ‘pool in the sky’ not only gives swimmers a breathtaking view of the parliament building, London Eye, London city skyline, but also an enjoyable experience floating in the air. Tens of meters from the ground, nothing but a transparent layer of glass makes swimmers feel like they are looking down the depths below. It is known that people created swimming pools from Colorado, USA, then transported by water across the Atlantic as a long and challenging adventure. But then, the design and installation between two high-rise buildings was even more difficult. Two buildings connected to the swimming pool are subject to common impacts including wind shakes and ground subsidence. But thanks to modern technology and architectural innovations, the swimming pool is able to handle the natural movements of two 10-story buildings that it sits in between. According to the design company, the first two sections of the pool are not rigid connections that can slide from side to side while retaining watertight integrity. Chairman Ballymore, developer of Ambassador Gardens, said: “Creating a pool in the sky comes from a desire to cross the boundaries of buildability as well as technology. We also want to cross boundaries on every aspect of the design, the transparent structure of the swimming pool the result of many significant advances in technology over the past decade. swimming will bring a unique feeling, as if floating in the air in central London “. Expected, the swimming pool will open on May 19.

Urban experts and architects say that it is time for authorities and related units to discuss and find future architectural works that when it comes to the world, the world will immediately think of the city. HCM City. There are no works of a caliber for Ho Chi Minh City According to the task of adjusting the general planning of Ho Chi Minh City until 2040, with a vision to 2060 being built, the City Department of Planning and Economic Affairs said: Regarding the orientation, the city will study and propose areas to create highlights. bamboo. This architectural highlight will note the height, the horizon … to create a unique identity for the city in the future. On April 29, talking to PV, architect Khuong Van Muoi, former President of the Association of Architects of Ho Chi Minh City, said that the search for ideas and construction of prominent architectural works are typical a “problem” is difficult, although the city really wants such a project. “Not now, but for a long time, we have held many competitions to design bridges, roads, architectural works … to find such typical highlights, but there are no works of a caliber for Ho Chi Minh City. Actually in the world too, it is not the test that will achieve the desired results ”- Mr. Muoi information. According to Mr. Muoi, typical architectural highlight works must be symbolic for that locality. For example: the Sydney Opera House (the Seashell Theater) in Sydney City – Australia, the Netherlands has a windmill project … which has special significance for that locality, to mention it immediately. instantly. “Currently we are in desperate need of typical architectural highlights, which means that when talking about that project, we know Ho Chi Minh City” – Mr. Muoi said. This is not the first time that the search for architectural accents has been mentioned. In 2019, the Ho Chi Minh City Real Estate Association (HoREA) also raised the idea of ​​building a bridge over the sea connecting Can Gio District (Ho Chi Minh City) and Vung Tau City (Ba Ria-Vung Tau Province). Sharing about this dream, Mr. Le Hoang Chau, President of HoREA, said the association was the unit that came up with the idea of ​​the first sea-crossing bridge in the 2017 Can Gio Development Planning conference at the Department of Planning- KT City. This is considered an iconic project like the Golden Gate Bridge – Golden Gate Bridge in San Francisco (USA). The work both addresses traffic needs and creates landscape for the area. The expert proposes to do prominent works of Ho Chi Minh City in Thu Thiem urban area. Photo: HOANG GIANG Time to look for a landmark project Talking to PV, architect Ngo Viet Nam Son said that if we look at the long-term until 2060, Ho Chi Minh City should have a high-tech landmark and use the “language” of the 21st century to show it. “We are having a project to develop Thu Duc City and in which there is the Thu Thiem center in Thu Duc City, the economic and financial center. In my opinion, the landmark project should be located in Thu Thiem and at least the highest in Southeast Asia or Asia ”- Mr. Son suggested. According to architect Ngo Viet Nam Son, referring to his experience when he joined the design and planning group of Shanghai East City, then Shanghai also raised the problem that there should be a prominent project. As for the bridge over the sea, Mr. Son said that it is difficult to be a typical project. As the Golden Gate Bridge (USA), it brings very high economic efficiency, greatly contributing to the development of the San Francisco Bay Area. The bridge over Can Gio sea does not reach such scale and significance. Raising his point of view, Dr. Pham Van Hung, Deputy Director of the Southern Sub-Institute of Transport Science and Technology, said that we must have a study of what is the cultural architecture of Ho Chi Minh City, urban characteristics of the city. How is Ho Chi Minh City. Then there is the idea of ​​building an iconic architecture. “Associations like Culture, Art, Architects… and experts, authorities should sit together to discuss to create a project that is a symbolic highlight for the city. We can discuss from now on so that 20-30 years later there will be such a big project ”- Mr. Hung said. According to Mr. Hung, it is time for Ho Chi Minh City to look for an architectural landmark in the future because we do not have such a convincing landmark project. Some prominent architectural works in the world Burj Khalifa Tower (Dubai Tower), this skyscraper is the tallest man-made structure in the world at the time of completion (2009), 829.8 m high. Sydney Opera House, located in Sydney Harbor – Australia, is one of the most remarkable buildings of the 20th century and is one of the most famous performing arts centers in the world. Eiffel Tower – France, built in 1889 in Paris, 324 m high, weighs 10,100 tons. This is the most popular tourist attraction in the world with more than 7 million people visiting each year. Empire State Building – USA, a skyscraper with a total height of 443 m, is a special highlight for the Manhattan skyline. The building is famous for its unique Art Deco design and is considered one of the cultural symbols of New York City.

The Burj Al Arab Hotel in Dubai boasts more than 500,000 Instagram followers, more than any other hotel in the world. This 7-star hotel has a helicopter airport. Each room was equipped with gold-plated iPads and a butler. The hotel attracted celebrities such as Roger Federer, Gigi Hadid, Claudia Schiffer and Kendall Jenner. Lowest rates for this hotel range from £ 1,000 / night to £ 19,500 / night for Royal Suite. A restaurant is built around a large aquarium. The stunning and colorful spa overlooks the skyline, priced at £ 264 for three hours of use. Burj Al Arab was built to represent Arab culture, with a space 590 feet high – significantly taller than New York’s Statue of Liberty. Luxurious interior of the hotel Burj Al Arab. The hotel is a stopover for the rich and famous around the world, from movie stars to royal members. A meal at the helipad. The infinity pool on the hotel’s terrace. The room with many details is inlaid with gold. Every position in the hotel is delicate and lavish. The hotel boasts nine restaurants, including Al Maharba, surrounded by a circular aquarium with a variety of fish, even sharks.

“Coming back in April, the wind sings in summer. There are such blue horizons. The clouds are far away and the sun is far away ”… It is the hum in the soul of music lovers from Duong Thu’s song. April is the time when you feel spring waving for the last time on the sunny horizon, farewell the green color of leaves, clouds, wind … already dark green, hard, and the flower buds bear fruit to wait for the day to ripen … Spring is gone. The glorious summer was at a glance with all but full of sunshine and wind, with the resounding holy showers and thundering thunder. Yellow gerbera. April brings us many hopes and dreams of a burning summer. It is no coincidence that the students all looked up at the arch of the phoenix, watching the bunches of phoenixes that were about to burn a fiery red fire like a youthful soul. Summer is really the season of youth, the season of aspirations, but the moment of changing season still has things to do with … and that shows in this green April. In recent years, when April comes, when the phoenix has not yet bloomed, the yellow flowers have glittered everywhere like a sunny season has come. In Hanoi, people take lilies as the April messenger of nature. The pure, pure white lilies made the season of April more emotional. Heaven and earth is like that, but nature is not equal to the human soul. It is people with anxious love, full of emotions that make up a green April of life. Green April will lead us to a summer of love to come. Green April has returned, with the sea lover, always go to the sea to watch the new waves every day fading, white and creepy of the cold season, now turning deep blue to the end of the horizon of white clouds. In April, there was no feeling and concept of spring and summer, thanks to poetic music that has created such a lovely moment. Human souls and eyes have made a poetic green April flutter. Duong Trang Huong

There is a copy of the book “The American Practical Navigator” by Nathaniel Bowditch, first published in 1802 on each of the US Navy ships.

This is considered an encyclopedia about navigation, filled with data on the longitude and latitude of many places, from Bugio lighthouse in Lisbon, Portugal, to Kannonzaki lighthouse in Yokosuka, Japan.

The book provides detailed instructions on how to use a hexagonal glass to measure a ship’s current position by observing the Sun, Moon, stars, and horizon. However, the presence of this book on board is only a ritual, as the US Navy has long been accustomed to using electronic charts based on GPS, Nikkei Asia said.

But the threat of electronic warfare from rivals like China, forcing the US Navy to consider the possibility of reusing the supposedly outdated navigation system, in preparation for the GPS system scenario prepares the enemy. disable.

Combining ancient and modern

In August 2020, the USS Patriot, an Avenger-class minesweeper of the US Navy stationed at the port of Sasebo, Japan, crossed a distance of 1,700 km into the western seas solely by astronomical positioning.

A pilot is using the hexagonal glass to calculate the ship’s position in the Pacific. Photo: US Navy.

Every afternoon, sailors would take a hexagonal glass, a centuries-old measuring instrument, to measure the angle of the Sun at its highest point in the day. The data will be fed into a computer program called the astronomical estimation system of latitude and longitude, also known as STELIA.

Sailors also observed the angular distances between the horizon and the Moon, the planets and the stars to calculate longitude and latitude. On the command tower, a navigation team consisting of the captain, subordinate officer and the pilot uses manual measurement data to control the ship.

Astronomical navigation has disappeared from the US Naval Academy curriculum since 2006, because it was deemed obsolete. But since 2015, the technique has been reintroduced into the program, to teach students how to measure and apply math to locate.

The re-teaching of astronomical navigation has been prompted by the acknowledgment that the US armed forces are increasingly dependent on digital systems. An attack on the GPS system that the US military is relying on, could limit the capabilities of the world’s most powerful military.

This concern becomes even more urgent as China invests heavily in electronic warfare and cyberspace.

Peter Singer, an expert at the Center for New Security of America, said the battle to kick off the next big war will take place in silence. In other words, it’s the war in cyberspace.

If digital communication was to be attacked, the US Navy would have to rely on the natural world, ears and eyes to survive, which is the reason for the return of the hexagonal glasses.

Learn how to position birds

Mr. Singer said that in addition to the astronomical navigation system dating back to the 18th century, the US should study another smarter navigation system for navigating ships, or guided missiles without relying on GPS. , similar to how birds migrate annually.

One sailor is working on calculating longitude and latitude based on Bowditch’s book. Photo: US Navy.

“The way they (the birds) move is not memorizing, it’s how they perceive Earth’s magnetic field. Some insects can do this too, so in-depth research is needed to develop a digital version of how birds move, ”says Singer.

The U.S. Defense Advanced Projects Research Agency (DARPA) is pursuing the Adaptive Navigation System project, a navigation technique that can work in buildings, under dense canopy, under water and ground. This system is said to be superior to GPS.

In February, a team of scientists released a report stating that birds may have global GPS systems.

“The precise navigation of these little birds is amazing, as they move alone across the sea, across the vast desert and through extreme weather conditions is one of the long-standing mysteries. behavioral biology “, a British scientist wrote on the World Economic Forum.

This may be the answer the US military is looking for in its defense mission against electronic warfare operations by China and other adversaries.

Billy Fabian, senior analyst at data analytics firm Govini, said preparing for the scenario of digital communication disruption is crucial, given the potential confrontation with China.