Folding Filter Paper (Steps 1-4)
| Photo | Explanation | |
| Step 1: |  |
Begin by folding a large filter
paper in half. In this and other steps, use pressure to crease the paper.
NOTE: Various sizes of Watman #1 filter paper (standard porosity) are self-serve items at the Service Center counter. The largest of the self-serve papers (11 cm) fits our wide-stem funnels. NOTE: Some of these steps may be difficult to visualize if using a lower-resolution monitor). |
| Step 2: |  |
The half circle is folded as follows: fold both edges in toward an imaginary center line which bisects the half-circle. The edges meet at the center. |
| Step 3: |  |
Next fold the edges which had
just been brought in contact backwards to meet the outer edges. Press to
crease the folds.
The shadow of the folded paper is a quadrant. |
| Step 4: |
©2001,2002 Daniel A. Straus |
One side is folded toward the
other and creased as shown.
The shadow of the folded paper is now an octant. |
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