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Search: Posts Made By: a1call
Forum: Science & Technology 2019-05-15, 13:01
Replies: 27
Views: 14,584
Posted By a1call
There is a different/better way. Persians have...

There is a different/better way.
Persians have synced the 1st day of the year to the Spring-Equinox for at least 900 years.
The leap year is observationally set rather than via an algorithm....
Forum: Science & Technology 2018-03-12, 02:52
Replies: 27
Views: 14,584
Posted By a1call
https://en.wikipedia.org/wiki/Around_the_World_in_...

https://en.wikipedia.org/wiki/Around_the_World_in_Eighty_Days


One can conclude that IDL is irrelevant to both stories.

You would gain/lose a day in observed number of day cycles regardless...
Forum: Science & Technology 2018-03-12, 01:51
Replies: 27
Views: 14,584
Posted By a1call
https://en.wikipedia.org/wiki/International_Date_L...

https://en.wikipedia.org/wiki/International_Date_Line
Forum: Science & Technology 2018-03-12, 01:06
Replies: 27
Views: 14,584
Posted By a1call
And I thought that Jules Verne...

And I thought that Jules Verne (https://en.wikipedia.org/wiki/Jules_Verne) was an original.:smile:

https://en.wikipedia.org/wiki/Around_the_World_in_Eighty_Days
Forum: Science & Technology 2018-03-11, 05:31
Replies: 27
Views: 14,584
Posted By a1call
:bow wave:

:bow wave:
Forum: Science & Technology 2018-03-11, 04:05
Replies: 27
Views: 14,584
Posted By a1call
My kind of a person: ...

My kind of a person:

https://twitter.com/scottbroom/status/972209582872449025/photo/1

:smile:
Forum: Science & Technology 2018-03-11, 02:21
Replies: 27
Views: 14,584
Posted By a1call
Sidereal-Year is not relevant here: ...

Sidereal-Year is not relevant here:

http://astro.unl.edu/naap/motion3/sidereal_synodic.html

However, Topical year is also subject to variations from its mean value.

There is nothing very...
Forum: Science & Technology 2018-03-11, 00:57
Replies: 27
Views: 14,584
Posted By a1call
https://en.m.wikipedia.org/wiki/March_equinox ...

https://en.m.wikipedia.org/wiki/March_equinox

Note the yearly shift of 5 hours 48 minutes of the occurrence of the Spring Equinox (with the explained slight variations) in the Universal-Time-zone...
Forum: Science & Technology 2018-03-11, 00:32
Replies: 27
Views: 14,584
Posted By a1call
If the solar year was exactly 365 days long...

If the solar year was exactly 365 days long (instead of 365 days and 5 hours and 48 minutes, Google tropical year), then at any given locale on earth any given orbital event such as Spring Equinox...
Forum: Science & Technology 2018-03-10, 22:54
Replies: 27
Views: 14,584
Posted By a1call
Japan time zone for 1979 in attachment. To...

Japan time zone for 1979 in attachment.

To clarify in 1979 the Spring Equinox occurred on March 21st in both Japan and Eastern time zone.

In 2018 the Spring Equinox will occur on March 21st in...
Forum: Science & Technology 2018-03-10, 22:53
Replies: 27
Views: 14,584
Posted By a1call
You are correct SM. I am bad at expressing...

You are correct SM. I am bad at expressing concepts. What I meant to say is that the same solar orbital events would occur on the same dates through out the world after one syncing and shifting the...
Forum: Science & Technology 2018-03-10, 22:16
Replies: 27
Views: 14,584
Posted By a1call
Eastern time zone orbital events

Eastern time zone orbital events
Forum: Science & Technology 2018-03-10, 22:12
Replies: 27
Views: 14,584
Posted By a1call
Japan time zone vs Eastern time zone solar...

Japan time zone vs Eastern time zone solar orbital events.
Please see the attachments.
Forum: Science & Technology 2018-03-10, 21:41
Replies: 27
Views: 14,584
Posted By a1call
Shifting the date line by about 5:47: ... every...

Shifting the date line by about 5:47: ... every year or alternatively keeping it static and observing a leap year every year in about 1/4 of the Earth will ensure that orbital events such as the...
Forum: Science & Technology 2018-03-10, 21:05
Replies: 27
Views: 14,584
Posted By a1call
Different calendars have different ways of...

Different calendars have different ways of determining new year's day.
Persian calendar for example is synchronised such that the spring equinox is observed on that day.
Gregorian calendar is...
Forum: Science & Technology 2018-03-10, 20:52
Replies: 27
Views: 14,584
Posted By a1call
Thanks in advance.

Thanks in advance.
Forum: Science & Technology 2018-03-10, 20:24
Replies: 27
Views: 14,584
Posted By a1call
International Date Line

It's the jagged longitudinal line either side of which has a different date.

There is nothing international about it since it is not based on any international treaty whatsoever.

The only...
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