TREES AS PINHOLE CAMERAS
Pictures from the partial solar eclipse in Oslo, august 11. 1999.
Click the images above to see larger versions.
| When sunlight passes through a small hole and falls on a smooth surface, you will se a small image of the Sun on the surface. The hole works like a lens, or what is known as a "pinhole camera". This is a safe procedure for observing solar eclipses.
When sunlight passes through the branches of a tree, the spaces between leaves will work in much the same way as a small hole. This results in an image of the Sun being projected onto the ground beneath the tree. As there are many leaves and many small holes, you will usually see a myriad of small Sun-images, partly covered by the Moon, during a solar eclipse. This is what you see on the images above. © Eirik Newth 1999 |