The proposed extent of the known universe = 1 light exachi, or roughly 8.4 million parsecs (27.4 billion years).
Decimal systems of space time are not new, nor are they rare.
The ancient Chinese, Egyptian, Greek and Hawaiian cultures, all independently derived base-ten systems of time and calendar reckoning.
In the late 1700’s the Revolutionary French Republicans also created a decimal calendar and time systems to go with their other metric innovations of mass, distance, volume and temerature.
In the late 1800’s, English astronomer John Herschel – son of William Herschel, discoverer of Uranus – began using the decimal fraction of the JulianDay to time-stamp his nightly observations.
In the late 1900’s, amid a flurry of Y2K interest in time by such intrepid tree-octopus hunters as Lyle Zapato, ground-breaking Dutch Digital Media Theorist Geert Lovink, even Swiss toy-watch manufacturer SWATCH briefly tested the waters, peddling a colorful array of plastic watches that displayed a decimal fraction of the day called ‘beats’. Hurray Nicholas Negroponte. His brother John was a central american thug in the Reagan administration. Say what you will about the Negroponte boys, but they are not underachievers — and you can’t pick your brothers.
Call it what you will — Chinese ke; French cés; Hawaiian kaukani pana, beats, grands, measures, cycles, or simply a ‘kilo of time’, have been around all along. Quietly in the background, decimal time systems have never stopped. In fact, they have been ticking all along. Today J2000.0, is the decimal date & time-code used in high-eschlon satellite and mission control applications.
The 5th decimal fraction of the day — 0.00001 day — is surprisingly close to the 60-seconds-per-minute we are more familiar with. As there are 86,400 seconds in one day, so too there are 100,000 ticks of decimal time. 20 ticks = 17 seconds
This ‘decimal second‘ (Greek ‘chi‘, Latin ‘tempi‘, French, cès, Hawaiian iki, different languages and cultures all recognise time at this wavelength 1/100.000th of a day.
The “chi (χ) duration” — named after the first letter of the Greek word chronos (χρόνος) meaning ‘time’ — is the same in every language. As there are 86,400 seconds in each mean solar Earth day (24 x 60 x 60), it follows that with 100.000 division of the day, each part is then 86.400/100.000 or more simply 0,864 seconds.
To experience this ‘chi duration‘ of time, if one is attentive, the subtle but perceptible up-tempo of chi is familiar, shifted only slightly faster (~14%) than seconds, at roughly 70 bpm. Music is the art form most deeply concerned with time and tempo, and has a sophisticated lexicon to describe a broad range of tempi. Adagio, is the Italian for this pace, which translates loosely as: slowly, gentle, easy. Not quite languid, but not brisk either.
Turning back to science and a new set of definitions for decimal space-time units, chi is defined as equal to 864 milliseconds, or more precisely 7.942.433.849 +/-20 oscillations of Ce 133 atom under controlled conditions. When chi is combined with the International System (SI or ‘metric’) prefixes of nano- milli-, kilo-, mega-, giga- etc — and then applied to the spatial distance traversed at the constant speed of light thru a vacuum, a new set of decimal space-time units are created.
ONE LIGHT CHI
ONE LIGHT KILOCHI
1.000 chi = 1 kilochi (kχ) ~15 minutes.
1 light kχ, light travels 260 million km.
If you drew a equilateral triangle in space, with each leg equal to 1 light kχ, each point would touch the orbit of the Earth/Moon system on Lagrange nodes. Johannes Kepler would be so proud!
The Earth to the Sun is about 150 million km. This distance is defined as 1 ‘astronomical unit’, or 1 AU.
ONE LIGHT MEGACHI
After kilo comes Mega, meaning ‘one million’. Mega chi — Mχ — one million decimal seconds turns out to be exactly 10 days. Instead of the familiar Judeo/Babylonian 7-day week, the Hawaiian, Chinese and Egyptian were several cultures to discern the value of a ’10 day week’. Hawaiian, this period of time is ‘Anahulu’. To those of us steeped in ‘God Created the Earth in Seven Days”, it may be surprising to learn that three 10-day-weeks (3 x 10 = 30) is a much better fit to Earth’s lunar month cycle 29.54d than four 7-day weeks (4 x 7 = 28). And with a 10-day week, every weekend is a 5 day weekend! Weeeeee!
How far can light travel in 1LMχ? Quite a ways!
ONE LIGHT GIGACHI
Giga chi — Gχ — are about equal to a ‘Saturn Return’ or 27,4 years . In one gigachi, light travels 27,4 lights years, or more commonly used by astronomer, 8,4 parsecs. Here is a map of our local stellar neighborhood.
ONE LIGHT TERACHI
After Giga- comes Tera-. 1.000 Gχ = 1 Tχ.
In a Tχ of 27.400 years, light travels 8.400 parsecs, coincedently the very distance our solar system is to the behive of blackholes buzzing in the middle of our Milkyway Galaxy
Try reflect on that kē or two!
ONE LIGHT PETACHI
After Tera- come Peta-
1.000 Tχ = 1 Pχ
1.000 Pχ = 1 Eχ
In a Eχ (Exachi = 27.4 billion years, light would travel 8.4 million parsecs, approximately equal to the proposed diameter of the known universe, which is quite a long ways. What do things look like at this scale?