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Ghyda On February 11, 2020




Anaheim, California
#106New Post! Oct 17, 2018 @ 16:24:27
Reading about Mayan calendars reminds me of reading about Ptolemy. In his book he lists the various lunar and solar cycles. Apparently, the Mayans (and maybe before them the Olmecs) tried to make their time counting fit with the sky motion.

The Wikipedia article says that the long count has five digits.

a base-20 days-digit, a base-18 months digit, a base-20 years digit, a base-20 double-decade digit, and a fifth digit that is either base-13 or base-20.

So the 19Th day should be 0, 0, 0, 0, 19.
The 20th day should be 0, 0, 0, 1, 0.

The 359th day should be 0, 0, 0, 17, 19.
The 360th day should be 0, 0, 1, 0, 0.

The 7,200th day should be 0, 1, 0, 0, 0.
The 144,000th day should be 1, 0, 0, 0, 0.

If the fifth digit maxes out at 13 (something like with an odometer), then

The 1,871,999th day should be 12, 19, 19, 17, 19. (about 5129 years)
The next day should be 0, 0, 0, 0, 0.

With these numbers, the end of the world would have been about 2,015 CE.
Ghyda On February 11, 2020




Anaheim, California
#107New Post! Oct 18, 2018 @ 18:36:54
@chaski Said

If I'm not mistaken (and I might be), based on Mayan mythology...and/or the Mayan calendar-clock... this date 3114 BCE in our calendar system was more like a cosmic re-set date than an actual creation date of the world/universe.



I found this on a webpage about Mayan Calendars.

"The largest cycle in the Long Count calendar is the baktun, 144,000 days. An era, or a full cycle, is comprised of 13 baktun cycles. The 13 baktun cycles total 1,872,000 days, or 5,125.366 tropical years. The current cycle,
or the 4th era, began August 11, 3114 BCE."

LIving Maya Time

That suggests that we have completed 4 eras of time, which must mean that for the Mayans, we have completed just over 20,500 years since the beginning of time.

And maybe the long count should have a sixth digit for the era.
chaski On March 28, 2024
Stalker





Tree at Floydgirrl's Window,
#108New Post! Oct 18, 2018 @ 20:20:28
@Ghyda Said

I found this on a webpage about Mayan Calendars.

"The largest cycle in the Long Count calendar is the baktun, 144,000 days. An era, or a full cycle, is comprised of 13 baktun cycles. The 13 baktun cycles total 1,872,000 days, or 5,125.366 tropical years. The current cycle,
or the 4th era, began August 11, 3114 BCE."

LIving Maya Time

That suggests that we have completed 4 eras of time, which must mean that for the Mayans, we have completed just over 20,500 years since the beginning of time.

And maybe the long count should have a sixth digit for the era.


Intersting.

I do like the idea of a reset every now and then.
Ghyda On February 11, 2020




Anaheim, California
#109New Post! Oct 20, 2018 @ 00:34:42
In Math Club and in courses like Economics and History the teachers asked us to read tweets from the American Enterprise Institute. I still sometimes read their tweets.

I have a friend who reads something called Teen Vogue. I think it's the source of his socialist world view.

Today I read an AEI Article that quotes an article from Teen Vogue, which recommends eliminating poverty by eliminating capitalism. The AEI responds that to redistribute wealth, one must have a source of wealth, capitalism provides the wealth.

Like the Mayan Calendar, we would not normally call it math, but the AEI article quotes lots of poverty statistics, most of which I have seen before, but never before all in one place. The economists must have used math to calculate the statistics. So in that way, we could call it math.
Ghyda On February 11, 2020




Anaheim, California
#110New Post! Oct 20, 2018 @ 00:44:26
@chaski Said

Intersting.

I do like the idea of a reset every now and then.


Reset button like during an earthquake, hurricane, or plane crash?



My grandfather is standing behind me reading this. He says that the first time he went to Vietnam, he booked a flight on a C-130 from Clark Air Base in the Philippine Islands to Da Nang in Vietnam. Just before the plane left the runway, all four engines quit.

Possibly and good time for a reset button.

No body was injured. The operations officer said that they could have another aircraft just like it. Gallows humor?
Ghyda On February 11, 2020




Anaheim, California
#111New Post! Oct 20, 2018 @ 02:04:56
One line in the Mayan Calendar Article in posting #107 makes me think that the Mayans or their ancestors may have measured time before they could count.

One August 11, 3114 BCE, "the Sun was at its zenith at midday, and the Maya constellation of the Turtle (Orion) marked the nadir, or the Underworld."

The fact that they associated Orion with time probably means that they could measure time before they could count.

Modern stone age people, the Hadza in Africa, recon time with the changing shape of the moon. Their language has no words for numbers higher than three, so we know that they don't count to measure time. However, the leader of a group of Hadza kept an appointment with an outsider by noting the changing shape of the moon.

The outsider said, [When] "I arrived by Land Rover in the bush, there was [the leaders]'s son waiting for us. Apparently, [the leader] had noted the stages of the moon, and when he felt enough time had passed, he sent his son to the tree. I asked if he'd waited a long time for me. 'No,' he said. 'Only a few days."

National Geographic

A drawing in the tree of vision article shows how cave paintings at Lascaux may represent constellations. I was not able to post it here?? I'm not sure why.

Paleolithic Europeans, like the Mayans, may have used the Orion to judge the passing of time.

Tree of Vision

One theory, "based on the discovery of numerous dots and tracings superimposed on the paintings of bulls, aurochs and horses on the walls of Lascaux," claims "these correspond to the patterns of constellations–most notably the constellations of Taurus and Pleiades and the stars Aldeberan and Antares. She proposes most of the constellations are represented by paintings of animals, accurately depicting their coloring and coats during the corresponding seasons of the year."

Paleolithic people, like at Lascaux, and Neolithic people, like the Mayan ancestors, must have measured time before they could count.
chaski On March 28, 2024
Stalker





Tree at Floydgirrl's Window,
#112New Post! Oct 30, 2018 @ 00:01:03
Tardigrades have 4 pairs of stubby legs. The body consists of a head, 3 body segments each with a pair of legs, and a caudal segment with a fourth pair of legs. The feet have four to eight claws each.

So, perhaps, their system of counting is based on 3 - 4 - 8. This probably explains why they can survive extreme environments, even outer space.

mrmhead On March 27, 2024




NE, Ohio
#113New Post! Oct 30, 2018 @ 02:40:13
@chaski Said

Tardigrades have 4 pairs of stubby legs. The body consists of a head, 3 body segments each with a pair of legs, and a caudal segment with a fourth pair of legs. The feet have four to eight claws each.

So, perhaps, their system of counting is based on 3 - 4 - 8. This probably explains why they can survive extreme environments, even outer space.



I always have to think of Doctor Who to remember the name of those things.
Ghyda On February 11, 2020




Anaheim, California
#114New Post! Nov 01, 2018 @ 02:22:35
I had thought of a tardigrade as a lost report card, but what do I know?

Ghyda On February 11, 2020




Anaheim, California
#115New Post! Jan 15, 2020 @ 21:12:03
I begin with 1, 0 ...

I find the average (1 + 0)/2 = 0.5

then the average (0 + .5)/2 = 0.25

By finding the average of the last two numbers in the series I get

1
0
0.5
0.25
0.375
0.3125
0.34375
0.328125
0.3359375
0.33203125
0.333984375
0.3330078125
0.3334960938
0.3332519531
0.3333740234
0.3333129883
0.3333435059
0.3333282471
0.3333358765
0.3333320618
0.3333339691
0.3333330154
0.3333334923
0.3333332539
0.3333333731
0.3333333135
0.3333333433
0.3333333284
0.3333333358
0.3333333321
0.333333334
0.333333333
0.3333333335
0.3333333333
0.3333333334
0.3333333333
0.3333333333
0.3333333333
mrmhead On March 27, 2024




NE, Ohio
#116New Post! Jan 16, 2020 @ 02:36:18
@Ghyda Said

I begin with 1, 0 ...

I find the average (1 + 0)/2 = 0.5

then the average (0 + .5)/2 = 0.25

By finding the average of the last two numbers in the series I get

1
0
0.5
0.25
0.375
0.3125
0.34375
0.328125
0.3359375
0.33203125
0.333984375
0.3330078125
0.3334960938
0.3332519531
0.3333740234
0.3333129883
0.3333435059
0.3333282471
0.3333358765
0.3333320618
0.3333339691
0.3333330154
0.3333334923
0.3333332539
0.3333333731
0.3333333135
0.3333333433
0.3333333284
0.3333333358
0.3333333321
0.333333334
0.333333333
0.3333333335
0.3333333333
0.3333333334
0.3333333333
0.3333333333
0.3333333333


I'm not going to check you on it (it's past my bedtime), but did you purposely limit it to 10 decimals, or did it naturally reach that?
Ghyda On February 11, 2020




Anaheim, California
#117New Post! Jan 16, 2020 @ 03:32:15
The number of decimal places is related to the capacity of the spread sheet.


@mrmhead Said

I'm not going to check you on it (it's past my bedtime), but did you purposely limit it to 10 decimals, or did it naturally reach that?
chaski On March 28, 2024
Stalker





Tree at Floydgirrl's Window,
#118New Post! Jan 16, 2020 @ 04:55:33
I keep seeing these Facebook memes about math equations... very simple equations...

The vast majority of people get the equations wrong because they don't know (or forget) the Order of operations.... PEMDAS... BEDMAS...

I know accountants, very very smart mathematicians, who get these Facebook memes wrong... because they forget the order of operations... some will even get angry and demand that they are correct when they are not.

It is very comical to me...

It should be part of a Star Trek episode.

Erimitus On July 01, 2021




The mind of God, Antarctica
#119New Post! Jan 16, 2020 @ 19:58:54
@mrmhead Said

I'm not going to check you on it (it's past my bedtime), but did you purposely limit it to 10 decimals, or did it naturally reach that?



Isn't this the fibonacci sequence?
Ghyda On February 11, 2020




Anaheim, California
#120New Post! Jan 16, 2020 @ 22:24:12
@chaski Said

I keep seeing these Facebook memes about math equations... very simple equations...

The vast majority of people get the equations wrong because they don't know (or forget) the Order of operations.... PEMDAS... BEDMAS...

I know accountants, very very smart mathematicians, who get these Facebook memes wrong... because they forget the order of operations... some will even get angry and demand that they are correct when they are not.

It is very comical to me...

It should be part of a Star Trek episode.




So, in your Star Trek episode, the computer on board the Enterprise would have a virus, which would change the PEMDAS rules?

A neighbor of mine told me that in the late 1970's, before desk top computers, a computer, which he worked on, made random word processing errors. Something like:

We the people of the United States in order to form all Legislative power shall be vested in a more perfect Union.

They noticed that the five volt power supply sometimes dropped to less than a volt, but only for about a microsecond. They changed all the parts in the five power supply without fixing the problem.

It turned out that some of five volts current, actually came from the twenty-five volt power supply.
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