How many grains of
sand are on the beach? And how many drops of water in the
Mediterranean Sea? Since the Mediterranean Sea is connected to the
Atlantic Ocean, and the Atlantic to all other oceans, we may as well
ask how many drops of water are there in the world? And as all land
is one, we may wonder how many grains make up the planet Earth? Only
Earth floats in a void detached – at least, as far as we know.
Gravity tethers us to the sun. It also tethers us to the Earth, water
to the oceans, to the seas, and grains of sand to the beach. A day at
the beach can be the most cosmic experience of all.
