What's the most numerous, the grains of sand in the earth or the stars in the sky??

It's a very old question, for as long as he put many people, especially young children to sit on the beach aspects: What is the most numerous grains of sand on Earth or stars in the sky?
Obviously it is difficult to calculate the stars and grains of sand, but can only give a rough estimate.
David Blatner says science writer, in his new book, "spectra" that a group of researchers at the University of Hawaii Hauloaalkiem counts the number of grains of sand on Earth.
They said, if you bear with a grain of sand may average and calculated how much grain found in coffee spoon and then multiplied by the number of the seas and deserts in the world, you will find that the land comprises about 18 ^ 7,5.10 grain of sand (This is a very approximate value).
It's a large amount of grains of sand ..

Well, why are all the stars? Even in the clear night sky luminous stars, you will not see a large number of stars. Blatner says that something is weak number (several thousand), the thing that gives owners of grains of sand landslide victory. But we must take into account a layman looking at the stars.
Vmracibna Hubble telescope has a calculator, so now we can calculate the distant galaxies, stars faded .. Anything we could not account before .. Now the number of stars in large part to 70 thousand million, million, million stars observed in space (est. 2003), this authorization gives the privilege of stars that grains of sand doubled to lead in the race.

So stars are more things in the universe number?

Do not. At this moment Blatner face smacked of us. Yes, it is said that the number of stars in the sky "can not imagine", but added that we can find the same number for the water molecules "in just 10 drops of water."
What did he say?
Let me re: If you take 10 drops of water (not great, unusual drops only), and suppose the number of H2O molecules in 10 drops, you will find that is equal to the total number of stars in the universe.

It's an amazing thing for me. For some reason, when I hear a million, billion or trillion, there is no doubt that a huge number, a huge pile of stuff, sands and many stars. Big things come from the large number of materials, and small things come from a lack of materials. This thing seems self-evident to us.
But this is wrong. Small things, if they are really few, they can accumulate all such big things, says Blatner, water molecules "are actually small."
This means that even if a small amount of water (10 drops), we found a huge number of particles equal to the number of stars in the universe.