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phartnett
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How long would it take to count all of the atoms in 12 grams of Carbon-12, If you could only count one atom per second?
It is estimated that there are approximately 7.5 x 10^18 atoms in a single grain of sand. If we were to count one atom per second, it would take approximately 238 trillion years to count all the atoms in a grain of sand.
The average human body is estimated to contain around 7 octillion atoms (7 followed by 27 zeros). If we were to count one atom per second, it would take approximately 2.2 quintillion years to count all the atoms in a human body.
The Earth is estimated to contain around 1.33 x 10^50 atoms. If we were to count one atom per second, it would take approximately 4.2 x 10^42 years to count all the atoms on Earth.
The Milky Way galaxy is estimated to contain around 100 billion stars, and each star is estimated to have around 10^57 atoms. This means that the Milky Way galaxy could potentially have around 10^67 atoms in total. If we were to count one atom per second, it would take approximately 10^59 years to count all the atoms in the Milky Way galaxy.
The observable universe is estimated to contain around 10^80 atoms. If we were to count one atom per second, it would take approximately 3 x 10^72 years to count all the atoms in the observable universe. This is significantly longer than the current age of the universe, which is estimated to be around 13.8 billion years.