Title Text:Fun fact: The standard North American NAD83 coordinate system is misaligned from the actual Earth, off-center by about 7 feet. Someone knows where I am, and I’m in the wrong place. Origin:https://xkcd.com/2920/ https://www.explainxkcd.com/wiki/index.php/2920:_Survey_Marker 测量标记 有趣的事实：标准的北美 NAD83 坐标系统与地球实际位置不对齐，偏离了大约 7 英尺。有人知道我在哪里，而我却在错误的地方。…