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@solved_science on Instagram: "This video shows an aerial view of what could be one of the longest trains in the world, captured from a helicopter. The train appears to stretch endlessly across the landscape, consisting of hundreds of connected cars moving in unison. Trains like these are often used in mining and freight operations, especially in countries like Australia, where the BHP iron ore train can exceed 7 kilometers in length. Helicopter footage offers a rare perspective, highlighting th