If you lie in a sand desert or on a
beach on one of the nights, you can probably count the number of stars in the
night sky but if you tried to count the number of sand grains it would perhaps
be impossible. It may seem unimaginable even just to think about it. Indeed,
scientists could do that. According to Mr.Cain, one cubic centimeter consists
around 8,000 grains of sand and there are about 700 trillion cubic meters of
sandy area on the ground. Therefore, according to a group of researchers at the
University of Hawaii, there are about 7.5x1018 grains of sand on our planet. However, what is weird
is when you know that the numbers of stars in the sky are more than the number
of sand grains on the ground. According to Driver, Professor at the
International Centre for Radio Astronomy Research in Western Australia and one
of the scientists who worked on this research, there are 70 sextillion stars in
our planet. Let me show you what 70 looks like: that means there are
70,000,000,000,000,000,000,000 stars! So, we can say that the number of stars
is about 10 times more than the number of sand grains of deserts and beaches.
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