2004 West Kennett formation
|
Reconstruction of the 2004 West Kennett formation | ||
| 1. |
| Draw a circle. Draw and extend the horizontal and vertical centerlines. |
| 2. |
| Copy circle 1 to its lower intersection with the vertical centerline. |
| 3. |
| Construct a circle concentric to circle 1, tangent to circle 2 at the lower side. |
| 4. |
| Construct the circumscribed dodecagon (regular 12-sided polygon) of circle 1, one side up, as shown. |
| 5. |
| Construct the circumscribed circle of dodecagon 4. |
| 6. |
| Copy circle 3 to the upper intersection of circle 5 and the vertical centerline. |
| 7. |
| Copy circle 3 to the lower intersection of circle 6 and the vertical centerline. |
| 8. |
| Construct the circumscribed dodecagon of circle 7, one side up, as shown. |
| 9. |
| Construct the circumscribed circle of dodecagon 8. |
| 10. |
| Construct the inscribed dodecagon of circle 3, pointing up. |
| 11. |
| Construct the inscribed circle of dodecagon 10. |
| 12. |
| Construct the circumscribed regular 36-sided polygon of circle 3, one side up, such that the midpoint of that side lies on the vertical centerline. |
| 13. |
| Draw the 36 rays, from the center of circle 3 to all angular points of polygon 12. |
| 14. |
| Circles 1, 3, 7, 9 and 11, and lines 13 make up all necessary constituents for the reconstruction. |
| 15. |
| Leave out all superfluous parts. |
| 16. |
| Colour the areas corresponding to standing... |
| 17. |
| ...or to flattened crop. This finishes the reconstruction of the 2004 West Kennett formation. |
| 18. |
| The final result, matched with the aerial image. |
| Copyright © 2004, Zef Damen, The Netherlands |
