Interesting! Is the zeroth century from year -99 to year 0, or from year -100
to year -1, or from year 0 to year 99?
Den 20:54 onsdag den 6. juni 2018 skrev Donna Y <dy...@sympatico.ca>:
Notice the the year 0 in Astronomical year numbering is
> Fred Espanak of NASA <https://en.wikipedia.org/wiki/NASA> lists 50 phases of
> the moon within year 0, showing that it is a full year, not an instant in
> time.
This zero in not nothing. It is like 0 degrees in C or F thermometers but not
Kelvin where absolute 0 is meant to represent Absolute Zero with the molecules
not moving. (only recently they have talked of temperatures below Absolute Zero
since it is an average and they are now capable of sorting molecules
> the team also adjusted the trapping laser field to make it more energetically
> favourable for the atoms to stick in their positions. This result, described
> today in Science1
> <https://www.nature.com/news/quantum-gas-goes-below-absolute-zero-1.12146#b1>,
> marks the gas’s transition from just above absolute zero to a few billionths
> of a Kelvin below absolute zero.
> https://www.nature.com/news/quantum-gas-goes-below-absolute-zero-1.12146
> the sub-absolute-zero gas is that it mimics 'dark energy', the mysterious
> force that pushes the Universe to expand at an ever-faster rate against the
> inward pull of gravity.
> Interval: Numerical values without a true zero point. The idea here is the
> intervals between the values are equal and meaningful, but the numbers
> themselves are arbitrary. 0 does not indicate a complete lack of the quantity
> being measured. IQ and degrees Celsius or Fahrenheit are both interval.
>
Donna Y
dy...@sympatico.ca
> On Jun 6, 2018, at 5:00 AM, PR PackRat <hhpack...@gmail.com> wrote:
>
> On 6/5/18, Jose Mario Quintana <jose.mario.quint...@gmail.com> wrote:
>> Let us do it the other way around; pick two dates with a similar timespan
>> using the BC/AD world standard.
>> How many years, months and days have passed between them? Does the
>> question even make sense? Forget about it. Let us try another one: how
>> many days have elapsed? Can you show us how to perform the calculations in
>> J?
>
> I have a slight background in astronomy and how it has a Julian day
> number for every date.
> You "win". See the Wikipedia article, "Astronomical year numbering"
> <https://en.wikipedia.org/wiki/Astronomical_year_numbering>.
>
> Harvey
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