High-speed imaging reveals that the squeak of soft–rigid frictional interfaces, like sneakers sliding on a basketball court, arises from intersonic opening slip pulses—analogous to earthquake ruptures—that thin ridges on the rubber confine to repeat at a musical frequency.
pixel[0] = pixel[0] 0.0031308f ? 1.055f * powf(pixel[0], 1.0f / 2.4f) - 0.055f : 12.92f * pixel[0];
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A key part of the Orion spacecraft that the astronauts will be flying in was made in Bremen in Germany.
经初步调查,邱某(男,25岁)驾驶车牌号为川ARXXXS的普通二轮摩托车沿西三环路二段外侧辅道行驶至事发路段变更车道时,与正在此处执勤的交警发生碰撞。事故发生后,受伤交警被第一时间送往医院救治,暂无生命危险。