View research View latest news Sign up for updates. Ostriches were filmed running at maximum speed, and forces on the feet were calculated. Measurements were made of the principal structures in the legs of an ostrich. Hence peak stresses in muscles, tendons and bones were calculated. They lay within the range of stresses calculated for strenuous activities of other vertebrates. The ostrich makes substantial savings of energy in running, by elastic storage in stretched tendons. Pachyornis was a flightless bird, much heavier than ostriches and with massively thick leg bones.

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View research View latest news Sign up for updates. Leg coordination of Drosophila melanogaster was studied using frame-by-frame film analysis. For fastest walking alternating tripod coordination is observed which slightly deviates towards tetrapody as a function of step period. During acceleration or deceleration legs may transiently recover in diagonal pairs. Mean recovery stroke duration increases with step period and plateaus beyond a period of about ms. Middle legs recover significantly faster than others. Walking is usually initiated in tripod coordination frequently in combination with a turn , otherwise in an accelerating sequence which rapidly shifts towards tripod pattern. Flies can stop abruptly or decelerate over about one metachronal wave.
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A right triangle American English or right-angled triangle British English is a triangle in which one angle is a right angle that is, a degree angle. The relation between the sides and angles of a right triangle is the basis for trigonometry. The side opposite the right angle is called the hypotenuse side c in the figure.
The hospital had become, by his own admission, his "family", and he had virtually abandoned us to this demanding career. That contributes to status in her culture. The scenario where she refused to watch a possibly 'anti' documentary and wanted to watch church-sanctioned material sounds like a red flag. He has never said a disparaging word about his mother. I would need to ask my husband again. Follow your heart and live life with no regrets. But remember that it is also your wife's choice to obey or disobey, and that you have no authority over her as a person, either. And most of those end up with both people losing their faith or a divorce. I would not have wanted to be dismissed as crazy and unworthy of attention when I was still a member, because it wouldn't have been true.