Back in 1969, it was the Apollo 11 crew who flew to the moon in a spaceship. When U.S. astronauts Neil Armstrong and Edwin “Buzz” Aldrin stepped foot on the moon, they were the first. Meanwhile, their fellow astronaut Michael Coilins circled the moon in their spaceship, named Columbia.

    When Armstrong and Aldrin were done with their walk，they returned to the command module, and back to Earth. That part of the spaceship is on view at the Smithsonian's Air and Space Museum in Washington, D.C. But, if you cannot get to Washington，soon you will be able to see Columbia on your computer or your smartphone.

    Digital scientists are scanning the inside of the spaceship. They are creating an online model, in three dimensions, or“3 D”. By looking at these photographs, you will be able to see outer space，the way the astronauts did. It will be like sitting in their seats.

    Want your very own Columbia spaceship? You will be able to print a 3D copy of Columbia. Experts say anyone can make a life-sized model. But they expect most people to make smaller models of the 320×400 cm(11'X 13')command module.

    Scientists are using special 3D technology to scan the inside. They use cameras on long arms to take the photographs. The thousands of photographs taken will be combined with 50 laser scans.

    What would it be like to sit inside Columbia and take a look around? All the images will be loaded into software that allows you to look around the module on a computer screen. The user will be able to see the Columbia both inside and out. The Smithsonian says that the 3D technology gives the user ways to see things they cannot see at the museum. And it will give information that even the museum curators(馆长)have not seen before.

    “With the Command Module, no one has been inside since it came into the collection,” says Adam Metallo. Smithsonian 3D imaging specialist. “Now the information we capture can give anyone in the world a view of what it looks like inside this incredible piece of history.”

    Whether in your life or work, the following things are not the reasons for you to feel embarrassed. It's OK and just move on.

⒈Mistakes while learning

    There will be times when you have people above you(a boss) or even next to you(a coworker) that will get really annoyed with you for“ruining"  something "important".{#blank#}1{#/blank#} Even if you make mistakes and get a punishment, persevere and push on. You do not need to be embarrassed for learning from your mistakes.

⒉Food choices

    People are different and have different taste buds（味蕾）.Whether it is healthy or not, food is a choice and it is part of life.{#blank#}2{#/blank#}  You do not need to be embarrassed for food you do or do not like. Tell them, "It is a personal choice I have made, and I am committed to it.”

⒊Your past

    Allowing positive experiences to define, limit, improve, and outshine（凸显）you may cause you to be caught up in the past and unable to truly live in the present. Whether your history is positive, negative, or somewhere in between, don't hold on to the negative experiences and let it reflect your current behavior，{#blank#}3{#/blank#}

⒋The clean lines of your car／home／workspace

    When everyone gets in the car, you realize your Starbuck bags are still on the floor. So what? Think about it this way: everyone has a "messy" aspect of their life. Maybe their home is completely clean, but the relationship with their spouse（配偶）is messy. Someone's car gets washed once a week, but his/her work life could use some help.{#blank#}4{#/blank#} We don't apologize to others about our personal limitations. By being outwardly embarrassed, it only brings more attention to the fact!

⒌Putting yourself first

    If you find yourself saying no to something or making up lies to get out of it,tell them the truth,  and don't apologize. You will feel much better in the long run if you are honest with them and yourself. If you're not up to a voluntary duty, you don't have to be. You can politely refuse the person's request.

    {#blank#}5{#/blank#} Put yourself first.

A. It is simply a personal choice that people make for their own reasons.

B. It is okay to be selfish from time to time.

C. Errors are bound to happen when you have on your training wheels.

D. Each of them waits for your immediate help.

E. Let bygones(过去的事)  be bygones.

F. Forgetting history means betrayal.

G. No one on Earth lives a perfectly "clean" life in every aspect.

    Time flies, or so they say. No matter where you are, humans are constantly measuring and checking time. Some of us are good at it—planning and doing things ahead of time—while others are always trying to beat the clock and do things at last. What about if you are behind time?

    Delay can be serious. If you were one minute late for work, would you resign? It may sound extreme to many of us, but that is exactly what occurred in the UK upper chamber of parliament, the House of Lords, in January 2018. International development minister Lord Bates arrived one minute late, and, as a result, was unable to answer a scheduled question. Instead of trying to make up for lost time, he resigned on the spot. He apologised for his discourtesy and stated that he was ashamed. His resignation, though, was not accepted by the UK prime minister.

    So, how late is too late? Many cultures take punctuality very seriously, whereas others seem to accept lagging behind as just the normal way of things. BBC employees from Latin America, Rwanda and Sri Lanka said that there are more flexible attitudes to timekeeping in their cultures. In Latin America, things may happen five minutes, 20 minutes, an hour or even two after they were planned. Whereas, in Sri Lanka, lateness is a part of the daily routine. This is because of poor infrastructure and heavy traffic conditions. In Rwanda, those who attend to deadlines with strick timekeeping are said to be “like a typical European”.

    On the other hand, German and Japanese employees mentioned a stricter adherence to time. In Japan, it is common to make an effort to arrive with time to spare for an appointment. Those who arrived at the stroke of nine to a meeting starting at 9 am would be considered late. In Germany, however, if a dinner party were to begin at eight, a person who had arrived five minutes prior, may walk around the block to make sure that they arrive at eight on the dot.

    With smart technology increasingly influencing all aspects of our lives, it is only a matter of time before someone invents “smart” shoes—ones that can be made based on personal needs. Called “ShiftWear”, the sneakers are the brainchild of a team of businessmen, and engineers led by New York-based designer David Coel.

    The adaptable shoes can be customized by using a smart phone app. Shoe owners will have the option of selecting a design from a variety of HD pattern by famous artists or creating one themselves. The company's founders imagine a marketplace where artists can not only share but also sell their designs to others. Despite being electronic, the designs are clearly visible even in the brightest sunlight. What's even cooler is that by switching on a backlight, users can even show off their designs in the dark!

    According to Coel, the sneakers will keep their charge “forever” if only images are displayed. Though they will need periodic recharging, active users have nothing to worry about. That's because the shoes are equipped with special walk-n-charge technology that powers the shoes—with every step. Inactive users also have options of charging the sneakers without using wires.

    The bottom part of the shoes is covered with Kevler fibers, a kind of strong material, reducing normal wear and tear. Even better? They are completely waterproof (not let water through) and can even be thrown into an ordinary laundry machine for a quick wash! The company predicts that the shoes will range the price from $150 to $1000 depending on the size of the E-panels where the designs are displayed.

    This is not the first time that electronics and shoes have combined. Lithuania-based iShuh Technology has come up with a similar concept that connects e-reader panels to a smart phone app via the Bluetooth. Whether these smart shoes become as popular as our smart devices remains to be seen, though they surely are attractive.

The rolling out of 5G services has triggered a wave of competition across the world. More importantly, it has started a race to develop 6G as the telecommunications sector has always been a hotspot for competition.

Compared with 5G technology, 6G will have lower latency, higher speed and more bandwidth. And this advanced technology will help connect the real world with virtual digital world. It will also make product design R&D(Research and development) and experiments significantly more efficient and greatly reduce their costs while making it possible to produce digital products. In the physical world through high-tech, including 3D printing. The seamless and intelligent connection of the physical and digital worlds will lead to a thorough reconstruction of the division of labor and societal cooperation.

In terms of economic development, 3G fostered e-commerce while 4G boosted e-commerce and mobile payment. 5G infrastructure building and application marked the beginning of intelligent manufacturing. Similarly, wireless cognition technology associated with 6G technology, once it matures, will further boost the development of the digital economy. In digital economy, intelligence based on big data will become the real force for innovation and 6G networks not only will be highways for transmitting data, but will also much more seamlessly integrate edge and core computing as part of a combined communications. This will provide many potential advantages as 6G technology becomes operational, including access to AI capabilities. Digital economy based on 6G will become the determining factor of the country's competitiveness in the future, and 6G technology with wireless cognition as its major characteristic will become core technology and main driver of the digital economy.

Starting with 5G our telecom industry, thanks to its extensive R&D input, has taken the lead in standardizing and manufacturing 5G telecom equipment，the competition in 6G will start with the setting of standards, which will determine the level of R&D needed for the launch of the technology and thus decide the market share of the emerging industry . As far as R&D in 5G technology is concerned. We have already enjoyed two advantages. first, it is a global leader in the telecom sector and has a solid reserve of talents. And second, it has a relatively complete industrial chain that covers R&D and design, manufacturing and application. and is home to leading 5G equipment maker. Recent history shows whoever leads the telecom technology sector sets the standards for telecom products and services. and plays a bigger role in the industry's future development . An official research team on 6G including the government. enterprises and research organizations has been established to obtain the advantage of 6G development competition .

Every year on April 1,April Fools' Day is celebrated in many countries around the world.In France,it's called "Poisson d' Avril"or"Fish of April".In Scotland, the holiday is often called "Gowkie Day".In Iraq, the holiday is called "Kithbet Neesan" or "April Lie".

History experts say people have celebrated April Fools ' Day for a long time.Some believe April Fools' Day comes from the ancient Romans more than two thousand years ago, which was a day of playing games and pretending to be someone else.

Others say the day for fooling began in France in 1564.when King Charles changed the yearly calendar.He moved New Year's Day from April 1 to January I Many people did not know about the change because of communication problems then.Some people continued to celebrate New Year's Day on April 1.Other people called them April Fools and played jokes on them.

In the United State, April Fools' Day is just a day of joking and playing tricks on friends.These kinds of jokes are also called pranks(恶作剧).These jokes typically end in the prankster shouting "April Fools"!

Simple pranks, like telling a friend a funny lie or making prank phone calls, are still common.But major companies also get in on April Fools' Day in a much bigger way.A few years ago,on April 1,Starbucks announced it was introducing new coffee cup sizes-plenta and Micra.The very large cups,bigger than a human head,remained useful for customers even after finishing all that coffee.According to Starbucks,the cups could be used as a rain hat,a pot for plants,or a lampshade.

It did not take long for customers to catch on to the prank.More and more people use media or smartphone apps to play pranks on their friends on April Fools' Day.One very annoying smartphone app,Cat Facts,sends funny facts about cats to your friends 5 phones every day.