Dutch Ph.D. student Mathijs van Ledden has demonstrated that the often used rule of thumb 'the calmer the water, the finer the bottom sediment' is not always true. In addition to the flow rate, a ...
CORDOBA, Argentina – Media helicopters buzzed over bikers at the starting line in Peru's desert. The motorcyclists became almost invisible roaring across the dust bowls of Peru, while cars in the four ...
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