Chinese people watch the rocket that sent the Tianwen-1 probe into space. Photo: AP The China National Space Administration (CNSA) announced on May 15 that the Tianwen-1 (Tianwen-1) probe had successfully landed on the surface of the “Red Planet”. “China has left its footprints on Mars for the first time, an important step for our field of space exploration,” Xinhua news agency said. The New York Times reported that since 1976, the US has successfully landed on Mars nine times. The Soviet Union in 1971 became the first country to send a lander to the surface of the Red Planet, but the mission was unsuccessful because the probe then stopped transmitting. Recently, China has continuously recorded new space science achievements. On the morning of April 29, China launched the first module to build its own Space Station (CSS). It seems that to catch up with the US and Russia, China’s ambitions do not stop at Mars and the space station. Moon Dream In January 2019, China was the first country to land a probe on the dark side of the Moon. The dark side can be understood as the night side of the Moon while the other side is observable from Earth due to receiving sunlight and is the day side. This is China’s second successful landing on the lunar surface, the first being in 2013. China is the third country in the world to successfully explore the Moon, after the US and Russia. In December 2020, China sent another probe to the Moon, which is Chang’e-5. On December 16, 2020, the Chang’e-5 spacecraft landed in Inner Mongolia carrying samples from the lunar surface. This is the first time scientists have collected samples from the lunar surface, after the Soviet Luna-24 mission in 1976. Moon samples brought back by Chang’e-5 are on display at the National Museum of China in Beijing. Photo: Getty Images China plans to launch three more spacecraft to the Moon by 2027. Beijing’s goal is to establish a base on the Moon that can be accessed by astronauts within the next decade. In March, the Russian space agency Roscosmos said it would cooperate with China in building a research station on the Moon. However, the two countries have yet to announce the details of this coordination plan. Serious competition The fragmentation of China’s Long March 5B missile falling into the Indian Ocean in May has drawn much criticism from international public opinion. In April, this Long March 5B rocket sent the core module into space to build China’s first space station. In the near future, China plans to carry out 11 more launches to complete the space station by the end of 2022. The International Space Station (ISS) jointly developed by Russia, the US and many countries will “retire” in 2024. It is still unclear what will happen next. The US National Aeronautics and Space Administration (NASA) advocates keeping the ISS operational for a few more years. Russia meanwhile announced it would withdraw from 2025. In the event that the ISS is completely shut down, China will be the only country that owns the space station. Accordingly, the Chinese space station named Thien Cung is expected to be able to host three astronauts operating at the same time. China has selected a team of 18 astronauts, including only one woman. The first three astronauts are expected to spend three months in space. Mars and more Model of China’s first space station. Photo: AP China announced that it plans to make one more Mars landing by 2028 and bring samples from the planet back to Earth for study. NASA and the European Space Agency are also embarking on this work in the hope that the US Perseverance probe, which landed on Mars in February, can bring soil and rock from Mars to Earth by 2031. This is said to be more likely to lead to a race between the parties. China also plans to take 10 years to collect samples from the comet. In addition, the country also intends to set up spacecraft to orbit around Venus and Jupiter. By 2024, China plans to launch a space telescope like the US Hubble, which has been in orbit since 1990. On China Space Day (April 24), President Xi Jinping wrote a letter to senior space scientists, encouraging them to “intensify and expand space exploration and rapidly quickly turn China into a space power.

On the other hand, large size can cause makeup difficulties like non-stick makeup. To fix this, Beautynesia outlined habits to avoid in daily activities. Improper face washing The first habit that can create large pores is not properly cleaning your facial skin. This leaves dirt on the face while clog pores. Many people use concealer, foundation or powder to conceal large pores. This makeup step is not wrong but you need to make sure to clean it off before going to bed. Sleeping with makeup that remains intact can clog up, leading to dirt build-up, larger pores, and pimples. Therefore, facial skin needs to be properly cleaned and done every day. Cleansing skin is a care step that cannot be ignored. Photo: Allure. Use allergenic cosmetics For people who have problems with the size of their pores, you should be wise in choosing cosmetics. Some products have oil-based ingredients that cause skin pimples or cause dirt to become clogged. Therefore, you should pay close attention to the ingredients, note even if they are non-acne-causing products. Squeeze blackheads This is a job that many people do regularly. “When your skin is squeezed and stretched, you’re contributing to wrinkles, inflammation and irritation that affect pore size over time,” says dermatologist Joel Schlessinger. In addition, extreme motion and pressure make the transfer of oil, bacteria and other impurities more dangerous from your hands, which can lead to a blockage. Squeezing blackheads can cause irreversible damage to your skin over time. The blackheads after squeezing become empty and easily filled with dirt and bacteria from the hands. Photo: Benzac. Skip the sunscreen Over time, skin loses elasticity, making pores look more visible. Sun exposure accelerates skin aging. Sunscreen helps to reduce the negative effects of the sun’s rays on your skin. The visible harm of ignoring it is growing pores. Therefore, sunscreen should be included in the list of mandatory things of skin care routine. Besides, you should choose products that suit your facial skin condition. You should choose a sunscreen with an SPF of 30 or higher. Photo: Nykaa. Consume foods high in oils and fats Basically, the foods you consume will affect your appearance. Oily foods cause the insulin hormone in the body to produce more, clogging the pores and resulting in large size. Therefore, start making changes to your lifestyle by consuming low-fat foods like fruits and vegetables. In addition, you need to provide enough fluids for your body to keep your skin healthy and hydrated. 5 easy-to-do anti-aging skin treatments The earlier you fight aging, the longer you will prolong the appearance of these signs of age.

Author: boat, Chen Ping The world’s largest chip has the second generation! WSE 2 will be listed in the third quarter of this year. WSE 2 uses a 7-nanometer process technology with 2.6 trillion transistors. A large number of chips have entered the market in recent years, aimed at accelerating artificial intelligence and machine learning workloads. Based on different machine learning algorithms, these chips usually focus on several key areas, but most of them have a common limitation-chip size. Two years ago, Cerebras unveiled a revolution in the field of chip design: They developed a chip called Wafer Scale Engine (WSE) with 1.2 trillion transistors, 57 times the size of Nvidia’s GPU Titan V. The size of WSE is bigger than an iPad. Cerebras’ “violent aesthetics” once caused people to exclaim: “WSE has more transistors than neurons in the human brain!” Cerebras is also well-known in the industry. Today, the company announced that its next-generation chip, Wafer Scale Engine 2 (WSE 2), will be available in the third quarter of this year. Using a 7nm process technology, the number of transistors has doubled to 2.6 trillion and contains 850,000 AI cores. WSE-2: 46225 square millimeters, 2.6 trillion transistors. Image source: https://cerebras.net/ Cerebras has been committed to maximizing the role of logical solutions to machine learning problems. When Andrew Feldman founded the company in 2015, training neural networks took a lot of time, while large networks took several weeks. The biggest bottleneck is that data must be transferred multiple times between the processor and the external DRAM memory, which wastes time and consumes energy. The WSE R&D team pointed out: We can expand the chip so that it can accommodate all the data needed together with the AI ​​processor core. With the development of natural language processing, image recognition and other fields, neural networks have also become very large, and the AI ​​field needs a very large chip. How old is it? As large as possible, this means a whole wafer, 46225 square millimeters. CEO Feldman said: “When you want to make changes, you always encounter physical design challenges. Everything is related to geometry. It’s really difficult, but TSMC is our extraordinary partner.” 7 The development of nanotechnology means huge progress, but according to Feldman, the company has also improved the micro-architecture of its AI core. He declined to give details, but said that after working with customers for more than a year, Cerebras has learned some lessons and integrated them into the new core. WSE 2: 7nm process technology, 2.6 trillion transistors WSE 2 uses TSMC’s 7nm process technology. This allows it to be scaled down, and to a certain extent, the SRAM can be reduced. WSE 2 has 850,000 AI cores. The chip size of WSE 2 is the same as that of WSE, but almost all functions have been doubled, as shown in the following table: Like the first generation of WSE, WSE 2 has hundreds of thousands of AI cores on a silicon chip measuring 46,225 square millimeters. WSE 2 has 850,000 cores and 2.6 trillion transistors-by comparison, the second largest AI CPU on the market is about 826 square millimeters and has 0.054 trillion transistors. Compared to the 40MB memory of Ampere A100, Cerebras introduced 40GB of SRAM onboard memory, which is 1000 times the former. The picture shows WSE 1. WSE 2 has the same appearance but doubled the number of cores. Its core is connected by a 2D Mesh with FMAC data path. The goal of Cerebras and WSE is to provide a single platform designed through an innovative patent that allows larger processors for AI computing and has now been extended to a wider range of HPC workloads. WSE 2 is based on the first generation The first-generation WSE chip has 1.2 trillion transistors, which is 57 times the number of NVIDIA’s flagship GPU Titan V. It is built using TSMC’s 16-nanometer process technology. It covers an area of ​​46,225 square millimeters and contains 400,000 cores. On-chip storage is up to 18G and power consumption is 1.5. Ten thousand watts (approximately equal to the power of 6 induction cookers), memory bandwidth 9PB/sec, communication structure bandwidth 100PB/sec. In addition, the first generation of WSE also achieved a speed increase of 3000 times and a storage bandwidth expansion of 10000 times. The key to the WSE-2 design is a custom graphics compiler, which uses PyTorch or TensorFlow, and maps each layer to the physical part of the chip, and allows data flow to be calculated asynchronously. Having such a large processor means no waste energy. Compilers and processors are also designed with sparsity in mind, allowing high utilization regardless of the batch size, or allowing parameter search algorithms to run at the same time. How does WSE 2 compare to the first generation? Compared with the two, the size of the chip itself has not changed. 300 mm is still the largest wafer size in mass production. Therefore, the overall size of the WSE 2 chip has not changed, but the AI ​​core has doubled. WSE 2 is still divided into a 7×12 rectangular array. Comparison of WSE 2 (left) and WSE 1 (right). In addition, the computer system CS-2 that hosts WSE 2 has not changed much. CS-2 is designed to achieve fast, flexible training and low-latency data center inference. Currently, CS-2 is powered by WSE-2. Compared with other data center AI solutions, CS-2 has higher computing density, faster memory and higher bandwidth interconnection, and uses a leading ML framework Perform programming. Cerebras, a fast-growing startup Cerebras Systems was established in California in 2015. Co-founder and CEO Andrew Feldman previously founded server chip company SeaMicro. Andrew Feldman, co-founder and CEO of Cerebras After several years of rapid development, the company’s size has basically doubled, with about 300 engineers in Silicon Valley, San Diego, Toronto and Tokyo. Reference link: https://www.anandtech.com/show/16626/cerebras-unveils-wafer-scale-engine-two-wse2-26-trillion-transistors-100-yield https://www.chinaventure.com.cn/news/114-20190820-347306.html https://cerebras.net/product/ https://spectrum.ieee.org/tech-talk/semiconductors/processors/cerebras-giant-ai-chip-now-has-a-trillions-more-transistors Amazon Cloud Technology Online Hackathon 2021 This is a like-minded training, this is a team competition where masters gather. Show your mind and play with creativity. From March 26th to May 31st, the stage of actual combat will open for you. The “Amazon Cloud Technology Online Hackathon 2021” is waiting for you! In order to encourage the participation and innovation of developers, this competition has prepared generous prizes for participants. In addition to the first, second, and third prizes, there are also special prActIcal awards, creAtIve awards, Koi Geek Awards, and Sunshine Awards. , The team that successfully submits works can receive prizes.

Be surprised on the legendary Ho Chi Minh street A Luoi district is located in the west of Truong Son mountain range. This is the revolutionary land of the Pa Ko ethnic group, a resistance base of the army and the Tri Thien people during the fight against the imperialism and independence for the nation. Back then, because the heavy consequences of the war could not be overcome, from Hue, if you wanted to get to A Luoi, you had to go back to Dong Ha (Quang Tri province), turn to the legendary 9th Street, through places like Cam Lo, Huong Hoa … then runs along Ho Chi Minh Road next to the majestic Truong Son range. A Luoi years after the reunification of 1975. (Photo provided by the author) A Luoi today has changed flesh. In the photo: Students come home from school on the streets of A Luoi town Our mission of about 40 people was assigned to remote villages. Morning on the road, Hue was very cold. Before that, we were told that this season, the climate in the mountains was very cold, so we had to bring enough warm clothes, blankets … When the cam-gong drove us across the Dakrong bridge – the suspension bridge was full. When the statue leads into A Luoi area, it rains heavily. The sky was overcast, and dark clouds hung in front of him. The cold air rushed in and out of the cold, unlike when it was on the plain. The majestic Truong Son range is hidden behind a hazy cloud. Large, deep and dense bomb craters on Ho Chi Minh Road were the result of enemy bombing. Every hole is full of water up to half a wheel. Small streams cut across the road, making the car ceaselessly tilting. On both sides of the road, there are houses on stilts of ethnic minorities curled up in the cold wind. Departing from 7 am but not until 5 pm, our delegation arrived at the district center. After a night of rest in the dormitory of a boarding high school, the next morning, I and 3 other colleagues were assigned to a commune nearly 80 km from the district center. It is Hong Van commune, a commune located deep in the Truong Son range. When I arrived in the commune, I was led by a young man named Ho Tau to hamlet 4. Anh Tau is also a teacher at the commune’s primary school. In the voice of the Kinh-speaking ethnic minority, he said: “We have to go through a forest road about 5 kilometers long to reach the residence of the people. In our village, there is only one trail. Only, I try to remember so that if there is a need, the commune will not get lost “. Hearing him say that, I was also a bit shy, Truong Son forest road, if I get lost, I know who to ask. I was brought by Mr. Tau to live in a long house on stilts owned by Uncle Ho Ha and his wife. Uncle Ha is in charge of the culture of the hamlet. His house is long and wide, divided into about 5-6 small houses for each family member to live and live in. In the middle of each apartment, there is a fire with very large sticks of firewood that are always red and buried in ashes. My apartment is on the outside. The center of the house is that of Uncle Ha and his wife, this is also the place where I “stand class”. The class consists of 6-7 tables with chairs, made of pine wood from cartons. After receiving the accommodation, the first thing I did was to send him some rice stamps and food stamps from the commercial level, but Uncle Ha refused. He said: “Whatever our family eats, you will eat it. You can keep these things for later!”. Literacy classes The first night of teaching, I was provided with a hurricane lamp, a blackboard and a chalk box. The first class starts around 7:00 pm. After Uncle Ha’s squeaking sound, from the trails, many small oil lamps scrambled, those were the students who brought lamps, exercises and pens to the “opening”. When I received the list of students, I was very surprised because they all wore the surname Hồ. It turned out to show respect for Uncle Ho, the people here took Uncle Ho’s surname as their surname. My class is about 10 students, most of them are women aged 30-40, only a few are men, most speak Kinh language very poorly and are a bit hard of hearing. Due to the prior instructions, I try to give the lecture very slowly, with a simple and easy-to-understand way of speaking. The first lesson was very fun with the voice of the ladies and uncles loudly reading in unison. Butter (shore), avocado ba. Mechanical, muscle a ca. Dirty, dirty … Then there were very hilarious laughter. Just like that, even if the rain is cold, every night the class will be crowded. In the free mornings, I often follow the practitioners to trim rice, pick corn, dig cassava (tapioca) … Upland rice can only grow one crop a year due to the lack of water. The people here cultivate on a large plot of land that has been cleared, one person goes first, holding two sharp-pointed sticks, walking while thrusting sharp stakes into the ground. The follower took the grain of rice from the small basket and put it in the hole and covered it with soil. But perhaps the most interesting is that according to Uncle Ha, he hunts small animals such as mites, hares, porcupines … or even boars come back to disturb the fields. Every time he hunted one, he shared it with his neighbors to improve the meal together. The food here is mainly corn, cassava, vegetables, dry meat … cooked together in a pot. At that time, the whole country was in the period of overcoming the consequences of the war, so the life of the people here was very difficult. After only 3 months of work, I have seen two students in the neighboring neighborhood get injured when digging up leftover bombs and ammunition. As a rule, on every Saturday at the end of the month, our group of teachers must go to the Commune People’s Committee to meet and report on difficulties and advantages in the working process. The first month I went to the meeting, because I had to go alone early, I was somewhat worried. But then went deep into the shady forest and followed the trail that Mr. Ho Tau took, so he was very confident and spoiled for the view of the mountains and forests. Through the third month, the curriculum reached its end. Students can self-rhyme for reading and writing. At that time, my wife was about to give birth to my first child, so I took 2 nights off to visit home. Uncle Ha gave me a bag of fresh corn to bring back to foster my wife. Hearing the news, Mr. Tau said: “Let me go with you, from childhood to big, I do not know where the street is!”. That morning, I got up early, Mr. Tau came to me and brought me some cassava roots wrapped in banana leaves for breakfast, then we both went to the national highway to take the cam-gong bus ride to Hue. Arriving at the street, I took Mr. Tau to Dong Ba market to eat Hue beef noodle soup. Seeing everything he is also interested, looking intently. I bought him a warm shirt, some scarves. He gave me back the dagger that he always had on hand while on the road. Three months of teaching here also ended. The day I broke up was very sad because I knew that there would rarely be a chance to reunite with everyone. I also know that due to the circumstances and life here, if students only learn to know without the conditions to improve, the risk of re-illiteracy can occur. I know that but how can it be! A Luoi district is not the same as before. The road up here now goes straight from Hue, the distance is only 1/3 of the distance we had to go more than 40 years ago. Now the people of A Luoi are no longer living in stilt houses, but instead are bricked red tiled houses. The village has been planned more neatly. Electric lights illuminate all over deep areas. Many places have become attractive tourist destinations. Thanks to the mechanization and expansion of irrigation, farming is much more efficient. On the two sides of the national highway, many shops sell all kinds of items that do not lack anything like in the town. The revival of this land has been soaked in blood, sweat, and tears of the people here. COMPANION UNIT

YouTube channel owner EverythingApplePro also said that the back of the iPhone 13 Pro Max will remain the same design as the iPhone 12 Pro Max. The difference between these two phones is that the iPhone 13 Pro Max has a larger camera cluster. The camera’s lenses are also improved, including the standard camera, the telephoto camera, the super wide-angle camera and the LiDAR scanner with a larger size than before. IPhone 13 Pro Max and iPhone 12 Pro Max drawings. According to Filip Koroy, the iPhone 13 mini was almost eliminated by the unimpressive sales of the iPhone 12 mini. However, users will have the opportunity to witness an upgraded version of the iPhone 12 mini launched last year. Apple will equip OIS optical stabilization technology on the iPhone 13 mini. This enhancement enables clearer and more stable video recording than before. However, no telephoto lens will be added to the camera cluster of the iPhone 13 mini. LiDAR scanners also do not appear to aid in measuring the distance from the camera to the object. Apple will improve the battery weakness of the iPhone 12 mini before. With the iPhone 13 mini, the device is equipped with a new technology battery, which is more energy efficient and durable. IPhone 13 mini drawing when compared to iPhone 12 mini. Overall, both the iPhone 13 Pro Max and iPhone 13 mini maintain the same screen size as their predecessor. However, it will be a bit thicker, adding about 0.25mm with the iPhone 13 Pro Max and 0.26mm with the iPhone 13 mini. As the launch date of the two phone models comes closer, users will have more accurate information about the new versions of the iPhone 2021 series. Tuan Nghia (According to Phonearena)