“Why are railroad rails exactly 4 feet, 8.5 inches apart?”

The US standard railroad gauge is 4 feet, 8.5 inches. Why? Because the first railroads were built in Europe. On roads constructed by the Romans. And the Romans constructed the […]

The US standard railroad gauge is 4 feet, 8.5 inches. Why? Because the first railroads were built in Europe. On roads constructed by the Romans. And the Romans constructed the […]