اگر زمین مانند زحل حلقه داشت چه شکلی میشد؟2009-11-29http://bamdadi.com/2009/11/27/the-rings-of-earth/?utm_source=feedburner&utm_medium=feed&utm_campaign=Feed%3A+itpedia%2Flinkdoni+%28%3F%3F%3F%3F%3F+%3F%3F%3F%3F%3F%3F%3F+%3F%3F+%3F%3F%3F%3F%3F%3F+%3F%3F%3F%3F%3F%3F%3F%29 ...