A Powerpoint about the making of Stonehenge

2. People think that Stonehenge was a
calculator or a timekeeper for solar and
lunar events like eclipses, solstices and
the equinoxes is now going out of favour.
However few British archaeologists
believe, or can see any evidence that
Stonehenge was used for complicated
astronomical 'computations'.

3.  There considerable evidence that it was
carefully designed (as a mirrored
symmetrical structure), and that the
premeditated design, whatever its
contemporary cosmological significance,
was set on the axis of the midwinter and
midsummer solstices.

4.  They are not made of local rock, the source of
the stones, has now been traced to mountains in
wales. Somehow these enormous stones were
transported to the Salisbury Plains.
 Many people think that the stones were surely
too heavy for timber rollers. Maybe they were
transported on sledges, or pulled by rope.
 Modern simulations have surmised that the
massive rocks were hauled into place then
tipped, using stone counterweights, into position,
demonstrating an understanding of the centre of
gravity.