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Pada tahun 1932, seorang penemu menciptakan “Airprop Cycle” sepeda yang digerakkan oleh baling-baling di bagian belakang! Saat pedal dikayuh, baling-baling berputar dan mendorong sepeda ke depan, mirip seperti pesawat kecil di jalanan. Penemunya percaya sistem ini bisa diterapkan untuk memperpanjang waktu meluncur pada pesawat glider. Bahkan, dalam video ini, terlihat juga seorang wanita mencoba mengendarainya dengan mudah. Eksperimen unik ini menjadi salah satu contoh kreativitas dan semangat ...
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