Philosophical MagazineTaylor & Francis, 1807 - Physics |
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Page 78
... glass or lens , and the other on the lowest . When two slips of glass are laid upon each other , or a convex lens upon one slip , so that both are in contact , the penknife will give three shadows ; but if the convex lens should be of a ...
... glass or lens , and the other on the lowest . When two slips of glass are laid upon each other , or a convex lens upon one slip , so that both are in contact , the penknife will give three shadows ; but if the convex lens should be of a ...
Page 81
... glass , and two sets of rings will be obtained . In the same manner , by laying upon a concave glass mirror a convex lens , we shall also have two sets of rings . The generalizations that have been mentioned when one set of rings was ...
... glass , and two sets of rings will be obtained . In the same manner , by laying upon a concave glass mirror a convex lens , we shall also have two sets of rings . The generalizations that have been mentioned when one set of rings was ...
Page 125
... glasses which are employed ; and yet it may be shown that this is not necessary . We may , for instance , convey light into the body of the subjacent glass through its first surface , and let it be reflected within the glass at a proper ...
... glasses which are employed ; and yet it may be shown that this is not necessary . We may , for instance , convey light into the body of the subjacent glass through its first surface , and let it be reflected within the glass at a proper ...
Contents
CONTENTS | 3 |
1542 | 5 |
Summary Considerations upon variegated Colours | 11 |
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