The flexibility and elasticity of the kite formed by the natural wing are rendered necessary by the fact that the wing, as already stated, is practically hinged at its root and along its anterior margin, an arrangement which necessitates its several parts travelling at different degrees of speed, in
elasticity הגייה עם משמעויות, מילים נרדפות, הפכים, תרגומים, משפטים ועוד