This video breaks down how scientists and economists use very large numbers, with clear examples from astronomy, mathematics, and modern wealth statistics to make scale easier to understand. Florida’s ...

Visualising 1 × 10 90 as the number of particles in the universe was seen as a sort of upper limit for all practical purposes for numbers(9 August, p 28). Why bother with infinity? I think we are ...

1 × 10 90 seems very small compared with the useful numbers used to generate cryptography keys. Given that such numbers are routinely involved in calculations with practical real-world applications, ...