A newly patented method of collecting solar energy has some associated coincidences with Stonehenge's structure:
the playlist takes about 10 minutes because it runs through the science using real prototypes and CAD models)
Much shorter version in one of the videos (but doesn't explain the science):
edit: Sorry, the original video seems to have gone, try this one instead:
The coincidences associated with Stonehenge appear to be remarkably high. But these may well just be coincidences?
Are there any instantaneous reasons to dismiss the theory or otherwise show that the Neolithic peoples could not have understood such a complex arrangement?