So I know that pi is the ratio of a circle’s circumference to its diameter (and the ratio of r³x4/3 to the volume of a sphere).

Apparently even the circumference of the universe needs less than 40 decimal places to be more accurate than we would ever need to worry about.

So my question is, how do we determine the decimal points beyond this? If pi is a ratio and even the largest conceived circle only gets you to ±36 places, how do we determine what the subsequent numbers are?

  • qt0x40490FDB@lemmy.mlEnglish
    2·
    22 hours ago

    I mean, geodetic interferometers already exist and can measure very small deviations. Give them arms the length of the observable universe and they will increase in accuracy, not decrease in accuracy.