Editing 1792: Bird/Plane/Superman
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|colspan=4| Birds fly by flapping their wings.{{Citation needed}} | |colspan=4| Birds fly by flapping their wings.{{Citation needed}} | ||
β | Planes have fixed wings, and fly by maintaining forward velocity and exploiting the aerodynamic effects of air flowing over the upper and lower wing surfaces, which are shaped and angled to produce lift | + | Planes have fixed wings, and fly by maintaining forward velocity and exploiting the aerodynamic effects of air flowing over the upper and lower wing surfaces, which are shaped and angled to produce lift. |
Superman flies using superpowers which require neither wings nor flapping. | Superman flies using superpowers which require neither wings nor flapping. |