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zeptosecond

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jverzani 2023-06-06 12:37:31 -04:00
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quarto/precalc/numbers_types.qmd
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@ -624,3 +624,23 @@ yesnoq(false)
```
(This shows the special casing that is done when powers use literal numbers.)
###### Question
In [NewScientist](https://www.newscientist.com/article/2112537-smallest-sliver-of-time-yet-measured-sees-electrons-fleeing-atom/) we learn "For the first time, physicists have measured changes in an atom to the level of zeptoseconds, or trillionths of a billionth of a second – the smallest division of time yet observed."
That is
```{julia}
1e-9 / 1e12
```
Finding the value through division introduces a floating point deviation. Which of the following values will directly represent a zeptosecond?
```{julia}
#| echo: false
as = [`1/10^21`, `1e-21`]
explanation = "The scientific notation is correct. Due to integer overflow `10^21` is not the same number as `10.0^21`."
buttonq(as, 2; explanation=explanation)
```