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megalithic computer

this early megalithic computer still has mystery built into it after so many centuries! Yet some aspects are simplest seen in relation to the tree alphabet and the calculation of time through stone and tree lore. The earliest wooden post structure, the Aubrey Holes, form the outer ring and four of these form the significant Station Stones, critical to all measurements connected to Stonehenge. Whilst the significance of the the summer and winter solstice points (2 and 4) are well described elsewhere, the importance of the Aubrey postholes (A) are completely lost on the modern visitor, though they are key!

hands of the clock

The clock can be most simply understood to work from the ‘outside in’. At the outer edge are the fify six Aubrey postholes, each post most likely representing a twelve hour interval (day/night). The result, like the ‘second hand’ of a clock, would enable the total 56 posts to mark a single lunar month of 28 days. At the opposite end of this scale and at its centre, the ‘hour hand’ is represented by the inner nineteen blue stone ‘horseshoe’ ring, whose number likely defined the completion of the 18.6 year lunar standstill, or Metonic cycle.
Relating the long ‘hour hand’ of a 19 year cycle to the ‘second hand’ of a 28 day cycle, is the ‘minute hand’ where the full year is represented as 360 days (30×12). This could well be represented in the ring of thirty sarsen, capped megaliths, which define a solar number that relates 12 (solar) months to 30 (stones).
Like the tree alphabet, where the ‘and one day’ principle applies, there is calendrical adjustment built-in to this lithic representation of months
Also like the tree alphabet, immediately outside the bluestone horseshoe is the horseshoe of giant megaliths, five paired and capped trilithons of sarsen stones. These may well indicate the five apex points of the year (the vowels)

lunation triangle

A core mechanism of the Stonehenge clock is the ‘Lunation triangle’, defined within the Station rectangle by its 5:12:13 proportions and built in to its four station stones. This pythagoras number (made centuries bfore Pythagoras was born!) defines the 13 and 12 relationship between solar and lunar months. The 12 solar (or ‘Egyptian’) months and the 13 lunar (‘Celtic’) months contain a right angle at the SW point, where the 5 lies at a right angle to the 12. This (pythagorean) triangle also demonstrates how the 5 alphabetical ‘vowel’ points relate to the 13 ‘consonant’ periods. In fact, splitting the 5 at the 2:3 point produces 12.368 (the number of full moons a year).
There are many astonishing further facts related to this lunation triangle, one of which defines how following this ’12’ line westward and reaching the Isle of Lundy (the moon island) where the same right angular turn north follows a path directly to the Prescelli mountains where the Stonehenge bluestones originate, from where the ’13’ line comes back to Stonehenge.. (for more on this be sure to see Robin Heath and John Michell’s works)