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Video: Chinese high-speed rail runs smooth as glass

Is this a magic trick or a scientific experiment? Perhaps it's a bit of both. A coin doesn't move as a Chinese train running at 300 kilometers per hour glides smoothly over the landscape. During a nine-minute video, the coin kept its balance, prompting a surge in online viewers worldwide. Some took to performing similar experiments on high-speed trains in their own countries - with varying levels of success.