A century ago, everyone thought time and distance were well defined physical concepts. But neither proved absolute. Instead, measures/reports of time and distance were found to depend on one%u2019s reference point, specifically one%u2019s direction and speed of travel, making our apparent...

A century ago, everyone thought time and distance were well defined physical concepts. But neither proved absolute. Instead, measures/reports of time and distance were found to depend on one's reference point, specifically one's direction and speed of travel, making our apparent physical...