A 26-year-old Chinese tech influencer, known online as "Amazing Ayu," has successfully built and piloted a homemade hoverboard. Song Xingyu, from Enshi, Hubei province, spent approximately two months constructing the device. He shared a video demonstrating his flight over mountains and the Yangtze River, garnering significant attention and over 3 million social media followers for his aerial inventions. AI
RANK_REASON The item describes a personal invention and demonstration, not a release from a frontier lab or significant industry event.
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