3 . Skiing has always been a big part of Mikaela Shiffrin’s life. Her dad ski raced all through college and her mom raced and coached skiing. The Shiffrins taught Mikaela and her brother, Taylor, to ski at a very young age. At two and a half years old, Mikaela made her first ski run down her driveway on plastic skis.

Mikaela loved skiing. From ages 8 to 11, she did hundreds of training runs on small hills to learn the skills of slalom skiing (障碍滑雪). When Mikaela was 11, she began to learn at the Burke Mountain Academy, a Vermont boarding school for skiers. She took classes, studied, and practiced her skiing. According to Burke Mountain Academy headmaster Kirk Dwyer, “What separated Mikaela from others was the degree of her commitment (投入) to be the best. Mikaela practiced more than anyone and believed in herself then and now.” At age 14, Mikaela began her international career when she raced in the world championships for 13- and 14-year-olds. And she won!

By the time she was 17, she had already won her first World Cup race. “Living away from home four and five months at a time can be difficult,” Mikaela says. “But it can also be exciting. I’m getting to see the world.” When Mikaela began ski racing in Europe, her mother, Eileen, stayed with her. She worked as her high-school teacher while they were on the road. “She has always been a super-hard worker,” says Eileen.

For Mikaela, working hard is a full-time job. Even her off-season is work time. “If you want something, just try your best,” she says. At the 2014 Winter Olympic Games in Sochi, Russia, 18-year-old Mikaela Shiffrin became the youngest slalom skier ever to win an Olympic gold medal.

4 . As an engineer, building things was Liang Kaiyu’s hobby in his spare time. When he saw that a foreign engineer had developed an autonomous e-bike, he decided to build one himself. But when testing his self-built automatic electric motor in January 2020, an explosion occurred, and he lost his left leg below the knee. About two months after the accident, he got his prosthetic limb (假肢).

On short-video platforms, Liang saw many people with physical challenges who live no differently from other people. They ride bicycles, dance and even ski, using their prosthetic limbs. Inspired by them, Liang started to post videos about his daily life to inspire more people. Since then, he has used his engineering skills to make his prosthetic limb more comfortable and powerful than a real leg.

He tried to upgrade his high-tech prosthesis, including fitting a shock absorber and putting in a charger port. One of the latest upgrades is the addition of colored LED lights to his running blade. The LED lights can be connected via Bluetooth to a smartphone and change color as they react to music. Through design, modeling and manufacturing, he made a device that can connect the socket (承窝) of the leg with the prosthetic knee. With the small device, he can take the leg off in one second. Moreover, to better learn about the structure and system of the prosthetics, he took apart some secondhand prosthetic limbs that were made in China and abroad, which cost him a lot of money.

“These high-tech prosthetics are comfortable and safer to wear. They can boost confidence with every step. But the only thing is that the cost is unaffordable for most families,” Liang says. He adds that due to the small group of consumers, there are few companies in China investing in the research and development of such prosthetics. To advance functional performance and help amputees (截肢人士) maintain or regain their freedom of movement, Liang has provided his experience and suggestions for several prosthetics companies.

“If there is a good opportunity, I want to make high-tech prosthetics accessible and affordable to more amputees in China,” Liang says.