Z Skrypty dla studentów Ekonofizyki UPGOW
According to scientists, the Sun is pretty big.[1]
The Moon, however, is not so big.[2]
Notes
- ↑ E. Miller, The Sun, (New York: Academic Press, 2005), 23-5.
- ↑ R. Smith, "Size of the Moon", Scientific American, 46 (April 1978): 44-6.