Soha sem volt eleg :)
Assuming the mass of ordinary matter is about 1.6×10^53 kg (reference previous section) and assuming all atoms are hydrogen atoms (which in reality make up about 74% of all atoms in our galaxy by mass, see Abundance of the chemical elements), calculating the total number of atoms in the universe is straight forward. Divide the mass of ordinary matter by the mass of a hydrogen atom (1.6×10^53 kg divided by 1.67×10^−27 kg). The result is approximately 10^80 hydrogen atoms.
ami 266 biten irhato le :)
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Live free, or I f'ing kill you.