Dop RA m.d.,MSC steam locomotive that can drive themselves up for the first time ever, but it still does not work, because the cars weigh too much. Make the rail cannot gain weight.
Has invented a steam engine That can propel himself up the first time. But it still did not work. Because there is too much weight Body can not take the weight.
With the invention of steam locomotive. That can be powered by himself up for the first time, but still didn"t work because the car weighed too much. The table can not get weight.