. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. Bird Study 33 HOW BIRDS FLY Teacher's Story TO convince the children that a bird's wings correspond to our arms, they should see a fowl with its feathers off, prepared for market or oven, and they will infer the fact at once. The bird flies by lifting itself through pressing down upon the air with its wings. There are several experiments which are needed to make the child understand this. It is difficult for children to conceive that the air is really anything, because they cannot see
. Handbook of nature-study for teachers and parents, based on the Cornell nature-study leaflets. Nature study. Bird Study 33 HOW BIRDS FLY Teacher's Story TO convince the children that a bird's wings correspond to our arms, they should see a fowl with its feathers off, prepared for market or oven, and they will infer the fact at once. The bird flies by lifting itself through pressing down upon the air with its wings. There are several experiments which are needed to make the child understand this. It is difficult for children to conceive that the air is really anything, because they cannot see it; so the first experiment should be to show that the air is something we can push against or that pushes against us. Strike the air with a fan and we feel there is something which the fan pushes; we feel the wind when it is blowing and it is very difficult for us to walk against a hard wind. If we hold an open umbrella in the hand while we jump from a step we feel buoyed up because the umbrella presses down upon the air. The bird presses down upon the air with the wings, just as the open umbrella does. The bird flies by pressing down upon the air with its wings just as a boy jumps high by pressing down with his hands on his vaulting .^J^ Hen with wing outstretched showing primaries and secondaries of the wing ajid the overlapping of the feathers. From practical exercise on feathers by Prof. J. E, Rice in Rural School Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Comstock, Anna Botsford, 1854-1930. Ithaca, N. Y. , Comstock Publishing Company
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License: Licensed
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Keywords: ., bookauthorcomstockannabotsford1, bookcentury1900, bookdecade1910
