On an idle poultry farm nestled in southwest China's wild mountains, a small rocket blasted off, leaving behind a white trail across the clear sky. The loud bang from the thrust echoed in the bleak coteau amid shouts and cheers. It wasn't an official rocket launch by an aeronautic organization or research institute, but an edutainment experiment by two coders from the east coast and 200 children at a rural elementary school.
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