3 ms·
The number of stars in the observable universe is roughly of the same order as the number of grains of sand on earth, and the number of atoms in a human eye. E
by andruby 4y ago
The number of stars in the observable universe is roughly of the same order as the number of grains of sand on earth, and the number of atoms in a human eye.
Estimates are: 10^19 grains of sand, 10^22 atoms in the human eye and 10^23 stars in the observable universe.
- srcreigh 4y agoI just saw that estimate for atoms in an average human body is on the order of 10^27. I didn’t expect that the whole body is 100,000x atoms compared to the eye. By weight (68kg/28g) the body is only about 2500x the size of an eye.