bookmark左等下次再訪德國時參觀。

電磁驅動蒙地卡羅賽道，
耗資5百萬，用了11年

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Each 6cm car uses a Halbach array of 20+ magnets and is tracked by 5,700 sensors with 100,000 lines of code, 150,000 hours of work for toy cars that hit scale speeds of 270 km/h, German engineering at its most obsessive