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Di akhir abad ke-19, motor pertama lahir tanpa lampu listrik seperti sekarang. Saat itu, berkendara malam hari penuh tantangan karena minim penerangan jalan. Solusinya? Mekanik menggunakan lampu karbit, teknologi yang sebelumnya dipakai pada sepeda. Gas asetilena dari campuran kalsium karbida dan air menghasilkan cahaya terang, lalu difokuskan dengan cermin cekung. Cahayanya setara dengan bohlam 6 volt 30 watt, mirip dengan motor produksi tahun 1930–1950. Salah satu motor yang masih pakai tekno...
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Before there were flashlights, miners used lamps fueled by carbide and water to illuminate coal caves. How come? Inside this lamp there are two rooms. The top is filled with water and the bottom is filled with carbide. When lit, water will drip from the top onto the carbide, and it reacts to produce acetylene gas. This acetylene gas is channeled out, then ignited into a white flame, similar to sunlight. Miners can adjust the brightness of the lamp by dripping more water onto the carbide. Credit...
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