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Category contains "Flight"
Issue: 142, 17/07/30 p. 446
Category: Zoology Ornithology Animal Physiology Flight
Topic: [Estimated speed of flight of vultures, swallows, crows, hawks]
Issue: 143, 24/07/30 p. 460
Heading: Velocity of Bodies. To the Editor of the Athenaeum
Category: Ornithology Animal Physiology Flight Physics Mechanics Fluid Mechanics Aeromechanics Steam Power
Topic: [Letter responding to a short item in Athenaeum, Issue 142, p. 446, on the estimated speeds of different birds in the air. The letter says the paragraph in question makes a common mistake. It does not take into account the movements of the wind. It is the same mistake as overestimating the speed at which a steam boat travels by discounting the speed of the wind]
Signed: "H."; Ed`s Mark: PARKE
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