You may have heard of Dude Perfect. They are 5 guys who make crazy trick (技巧) shots and have fun for a living! They are so good at what they do. They have one of the top 10 channels (频道) on YouTube. It all sounds good. But their real story is much deeper and better. It is a story of trust, friendship, hard work, passion and giving back.

Dude Perfect is made up of 5 best friends who met while at college at Texas A&M University. Their names are Coby, Cory Cotton, Garrett Hilbert, Cody Jones, and Tyler Toney. At college, they became friends through their love of sports. They enjoyed spending time with each other so much that they all became roommates.

One day, in their backyard, they said they could make a trick basketball shot. They started to take video of their crazy shots. Within one week, the video received over 200,000 views! Soon, they received a call from the TV show Good Morning America who wanted to interview them. That was their first interview, the one that started everything! As Dude Perfect started to catch on, they started to attract star athletes to shoot videos with them.

Despite all their success, they have never taken their eyes off their bigger goal to spread good worldwide. Their message of the power of faith and friendship is at the heart of what they do.

Their videos show the history of Dude Perfect and the values that drive them. There is a great example of how they use their fame (名声) to spread good. They also show how they invite children from the Make a Wish Foundation to be a “Dude for a Day”!

Dude Perfects tricks are so good that some people question whether they are real. Well, they are. The secret is simply hard work and persistence (坚持). Their videos show how they do what they do!

Kate Hanselman’s home is a shrine to hobbies past and present. Fencing suit sits beside multiple pairs of rock-climbing shoes. “I find yarn everywhere because I love knitting, and I have a whole set of embroidery (刺绣) stuff,” she says. Plus: stacks of puzzles, her partner’s golf clubs, and equipment from his flying lessons. “Our house is like a full hobby station,” she says with a laugh.

Challenging, fun and engaging hobbies have the power to make us happier and healthier, says Hanselman, a nurse with the counseling practice Thriveworks. Such pursuits help us grow in creative, physical and intellectual ways, and can boost self-esteem. Plus, they often foster connection with others. Hobbies lead to better physical health, more sleep, lower stress, greater life satisfaction, a larger social network and improved work performance.

That resonates with Chris Johnson, recreational woodworker, motorcyclist, gardener, cook and runner. He has accepted that he’ll never be a master surfer, but that doesn’t dampen his enjoyment of riding waves. And he’s so taken with beekeeping that his backyard is now home to 20,000 honeybees.

“I really love learning and figuring things out, and developing an understanding of how things tick,” says Johnson, of Carolina Beach, North Carolina. His hobbies tend to evolve out of curiosity, boredom or need. Take the bees: After moving into a new home with a barren yard, he was concerned about a lack of pollinators, so he planted a garden and became a beekeeper.

“If you derive joy from your hobby—it doesn’t matter if it’s a board game or beekeeping—I’m confident it will make you a better person in every aspect of your life,” he says.

Qian Xuesen is a world-famous expert on aerospace rockets and aerodynamics（空气动力学）. He obtained great achievements in areas of applied mechanics, engineering cybernetics（控制论）and system engineering and made distinguished contributions to the foundation and development of Chinese aerospace industry.

After graduating from Shanghai Jiaotong University in 1934, Qian Xuesen went to America to study in MIT one year later. After receiving master's degree there, he went to study in California Institute of Technology and received PhD degrees in both aerospace and mathematics.

In 1955, Qian Xuesen returned to his motherland despite all the barriers. His return brought China the hope of developing space science and its own missiles（导弹）.

In 1956, he put forward "Proposal on the Development of China's Aviation（航空）Industry for National Defense". With the support from the Premier Zhou Enlai, Qian Xuesen began to prepare for the establishment of China's first missile and rocket research and development structure, the Fifth Research Institute of State Ministry of Defense. From then on, he has long been in charge of the chief technological research and development of China's missile, rocket and spacecraft.

China successfully exploded its first atom bomb in 1964. Later, China launched its first man-made satellite to the earth orbit on April 24, 1970, becoming the fifth country to independently launch satellite following the former Union of Soviet Socialist Republics, the USA, France and Japan. The satellite floated around the earth, broadcasting the song Dong Fang Hong, which has the same name as the satellite.

As a forerunner of China's aerospace science and technology, he provided chances for young scientists. Wang Yongzhi, former chief designer of China's manned-space project, has benefited a lot from Qian. "He suggested that rocket of the second generation should be developed by our second generation scientists. This gave us chances to be general designers". Recalling the experience working with Qian, Sun Jiadong, general designer of China's lunar orbiter project, is grateful. "He put great expectation on us and trusted us a lot. Whenever we made mistakes, he seldom blamed us but helped find out the reason so we could avoid it in the future."

Honored as Father of Missile and King of Rockets, Qian never stopped his work on scientific research after retirement. He said he had no time to review the past, but looked forward to the future.