[Script Info]
Title: 
[Events]
Format: Layer, Start, End, Style, Name, MarginL, MarginR, MarginV, Effect, Text
Dialogue: 0,0:00:01.61,0:00:03.80,Default,,0000,0000,0000,,{\b1}上面写着KN 千牛顿{\b0}
Dialogue: 0,0:00:04.86,0:00:12.74,Default,,0000,0000,0000,,{\b1}看完这段视频 你会比其他99%的攀岩者有更好的理解{\b0}
Dialogue: 0,0:00:12.99,0:00:15.49,Default,,0000,0000,0000,,{\b1}KN 到底意味着什么意思{\b0}
Dialogue: 0,0:00:16.07,0:00:19.95,Default,,0000,0000,0000,,{\b1}以及攀爬冲坠过程中所涉及的力是哪些{\b0}
Dialogue: 0,0:00:20.49,0:00:27.16,Default,,0000,0000,0000,,{\b1}然后我会解释为什么大距离的坠落比小距离的坠落要柔和得多{\b0}
Dialogue: 0,0:00:27.16,0:00:30.16,Default,,0000,0000,0000,,{\b1}但首先 让我们看看力是什么{\b0}
Dialogue: 0,0:00:30.16,0:00:32.72,Default,,0000,0000,0000,,{\b1}我喜欢和我的Instagram粉丝一起互动{\b0}
Dialogue: 0,0:00:32.72,0:00:34.57,Default,,0000,0000,0000,,{\b1}所以我决定问问他们{\b0}
Dialogue: 0,0:00:34.57,0:00:38.78,Default,,0000,0000,0000,,{\b1}当他们听到“力”这个词时 他们会想到什么{\b0}
Dialogue: 0,0:00:38.78,0:00:42.57,Default,,0000,0000,0000,,{\b1}一半的人说这和《星球大战》 有关{\b0}
Dialogue: 0,0:00:43.49,0:00:44.32,Default,,0000,0000,0000,,{\b1}很好{\b0}
Dialogue: 0,0:00:44.66,0:00:50.53,Default,,0000,0000,0000,,{\b1}在你觉得我Instagram上一半的粉丝都很聪明之前{\b0}
Dialogue: 0,0:00:50.66,0:00:53.78,Default,,0000,0000,0000,,{\b1}我不得不说 大多数人根本没有投票{\b0}
Dialogue: 0,0:00:53.90,0:00:55.56,Default,,0000,0000,0000,,{\b1}所以我想象大家可能是这个状态{\b0}
Dialogue: 0,0:00:55.82,0:00:58.20,Default,,0000,0000,0000,,{\b1}力指的是什么{\b0}
Dialogue: 0,0:01:00.74,0:01:03.82,Default,,0000,0000,0000,,{\b1}好的 那些聪明的人说 {\b0}
Dialogue: 0,0:01:03.82,0:01:07.16,Default,,0000,0000,0000,,*{\i1}力 是 质量{\i0} 加速度 **
Dialogue: 0,0:01:07.16,0:01:09.24,Default,,0000,0000,0000,,{\b1} 这是牛顿第二运动定律{\b0}
Dialogue: 0,0:01:09.28,0:01:11.45,Default,,0000,0000,0000,,{\b1}这个人提出了这个定律 {\b0}
Dialogue: 0,0:01:11.45,0:01:14.45,Default,,0000,0000,0000,,{\b1}这就是为什么我们用牛顿这个单位来测量力{\b0}
Dialogue: 0,0:01:14.45,0:01:17.11,Default,,0000,0000,0000,,{\b1}当你思考它的时候 {\b0}
Dialogue: 0,0:01:17.24,0:01:18.90,Default,,0000,0000,0000,,{\b1}想象一下牛顿{\b0}
Dialogue: 0,0:01:22.45,0:01:24.90,Default,,0000,0000,0000,,{\b1}所以我们用kg 作为质量单位{\b0}
Dialogue: 0,0:01:28.61,0:01:33.16,Default,,0000,0000,0000,,{\b1}加速度 以m/s²为单位{\b0}
Dialogue: 0,0:01:35.61,0:01:40.28,Default,,0000,0000,0000,,{\b1}力以n（牛顿）来做单位{\b0}
Dialogue: 0,0:01:42.99,0:01:48.07,Default,,0000,0000,0000,,{\b1}为了更好地理解这个公式 它就像1牛顿 {\b0}
Dialogue: 0,0:01:48.95,0:01:51.74,Default,,0000,0000,0000,,{\b1}推动一千克的质量{\b0}
Dialogue: 0,0:01:52.28,0:01:58.90,Default,,0000,0000,0000,,{\b1}使质量的加速度是1m/s²{\b0}
Dialogue: 0,0:01:58.90,0:02:00.74,Default,,0000,0000,0000,,{\b1}这里有一个锁扣{\b0}
Dialogue: 0,0:02:01.70,0:02:04.78,Default,,0000,0000,0000,,{\b1}如果我把全身重量都压在上面 {\b0}
Dialogue: 0,0:02:05.11,0:02:06.49,Default,,0000,0000,0000,,{\b1}像这样{\b0}
Dialogue: 0,0:02:06.49,0:02:10.16,Default,,0000,0000,0000,,{\b1}问题是 现在这个锁扣的力是多少{\b0}
Dialogue: 0,0:02:10.16,0:02:12.36,Default,,0000,0000,0000,,{\b1}如果我们回头看这个公式 {\b0}
Dialogue: 0,0:02:12.61,0:02:15.61,Default,,0000,0000,0000,,{\b1}我们可以说 m 就是我的质量{\b0}
Dialogue: 0,0:02:15.99,0:02:18.45,Default,,0000,0000,0000,,{\b1}乘以加速度 {\b0}
Dialogue: 0,0:02:19.78,0:02:23.90,Default,,0000,0000,0000,,{\b1}加速度是多少 我挂在树上 没有运动 没有加速度{\b0}
Dialogue: 0,0:02:25.11,0:02:27.24,Default,,0000,0000,0000,,{\b1}或者有一个加速度{\b0}
Dialogue: 0,0:02:30.16,0:02:33.61,Default,,0000,0000,0000,,{\b1}你们可能见过这个实验 {\b0}
Dialogue: 0,0:02:33.78,0:02:36.78,Default,,0000,0000,0000,,{\b1}有一个轻的物体和一个重的物体{\b0}
Dialogue: 0,0:02:37.49,0:02:41.40,Default,,0000,0000,0000,,{\b1}问题是 如果我同时放开它们 {\b0}
Dialogue: 0,0:02:41.74,0:02:44.16,Default,,0000,0000,0000,,{\b1}哪个会先着地{\b0}
Dialogue: 0,0:02:44.78,0:02:45.86,Default,,0000,0000,0000,,{\b1}让我们试一试{\b0}
Dialogue: 0,0:02:55.95,0:02:58.57,Default,,0000,0000,0000,,{\b1}所以是的 它们同时下落到地面 {\b0}
Dialogue: 0,0:02:58.70,0:03:01.95,Default,,0000,0000,0000,,{\b1}因为重力就是这样 它让物体下落{\b0}
Dialogue: 0,0:03:02.24,0:03:07.36,Default,,0000,0000,0000,,{\b1}以同样的加速度 9.8m/s²{\b0}
Dialogue: 0,0:03:15.90,0:03:18.03,Default,,0000,0000,0000,,{\b1}所以当我挂在锁链上的时候{\b0}
Dialogue: 0,0:03:18.61,0:03:20.11,Default,,0000,0000,0000,,{\b1}地心引力把我往下拉{\b0}
Dialogue: 0,0:03:20.49,0:03:23.20,Default,,0000,0000,0000,,{\b1}但是为了让我不向下移动 {\b0}
Dialogue: 0,0:03:23.20,0:03:25.53,Default,,0000,0000,0000,,{\b1}一定有一个相反的力 {\b0}
Dialogue: 0,0:03:25.53,0:03:27.28,Default,,0000,0000,0000,,{\b1}把我拉上来 {\b0}
Dialogue: 0,0:03:27.49,0:03:28.90,Default,,0000,0000,0000,,{\b1}这里我有一个弹簧{\b0}
Dialogue: 0,0:03:29.53,0:03:32.74,Default,,0000,0000,0000,,{\b1}当重力将岩石向下拉时 {\b0}
Dialogue: 0,0:03:32.74,0:03:35.24,Default,,0000,0000,0000,,{\b1}弹簧将岩石向上拉{\b0}
Dialogue: 0,0:03:35.57,0:03:39.20,Default,,0000,0000,0000,,{\b1}这个锁扣实际上就像一个非常非常硬的弹簧{\b0}
Dialogue: 0,0:03:39.36,0:03:40.82,Default,,0000,0000,0000,,{\b1}它把我拉上来{\b0}
Dialogue: 0,0:03:41.20,0:03:44.24,Default,,0000,0000,0000,,{\b1}当我挂在锁扣上时 {\b0}
Dialogue: 0,0:03:44.24,0:03:46.16,Default,,0000,0000,0000,,{\b1}锁扣的分子会趋于分散{\b0}
Dialogue: 0,0:03:46.20,0:03:49.95,Default,,0000,0000,0000,,{\b1}原本分子聚集的力量会产生类似拉的作用 {\b0}
Dialogue: 0,0:03:49.95,0:03:53.82,Default,,0000,0000,0000,,{\b1}这种在低拉力下的扩张你是看不到的{\b0}
Dialogue: 0,0:03:54.28,0:03:55.82,Default,,0000,0000,0000,,{\b1}但是大的力就可以{\b0}
Dialogue: 0,0:04:02.28,0:04:07.40,Default,,0000,0000,0000,,{\b1}结果是这个锁扣举起了我的体重{\b0}
Dialogue: 0,0:04:08.07,0:04:12.78,Default,,0000,0000,0000,,{\b1}以同样的9.8m/s²的加速度 {\b0}
Dialogue: 0,0:04:12.78,0:04:15.78,Default,,0000,0000,0000,,{\b1}也就是大约600N{\b0}
Dialogue: 0,0:04:16.32,0:04:18.66,Default,,0000,0000,0000,,{\b1}是啊 六百个这样的东西{\b0}
Dialogue: 0,0:04:18.66,0:04:22.11,Default,,0000,0000,0000,,{\b1}才能拉住我这样的瘦子 {\b0}
Dialogue: 0,0:04:28.78,0:04:30.36,Default,,0000,0000,0000,,{\b1}好了 我们继续{\b0}
Dialogue: 0,0:04:30.82,0:04:36.53,Default,,0000,0000,0000,,{\b1}这个主锁显示它能承受26kn的重量{\b0}
Dialogue: 0,0:04:37.57,0:04:41.03,Default,,0000,0000,0000,,{\b1}KN等于一千牛顿{\b0}
Dialogue: 0,0:04:41.03,0:04:46.45,Default,,0000,0000,0000,,{\b1}所以这意味着它能承载40个我{\b0}
Dialogue: 0,0:04:46.45,0:04:48.86,Default,,0000,0000,0000,,{\b1}我希望我有一台克隆机器{\b0}
Dialogue: 0,0:04:48.86,0:04:51.28,Default,,0000,0000,0000,,{\b1}这样我就可以向你们展示这个{\b0}
Dialogue: 0,0:04:52.61,0:04:58.45,Default,,0000,0000,0000,,{\b1}然后想象一下我能制作多少视频{\b0}
Dialogue: 0,0:05:01.20,0:05:03.40,Default,,0000,0000,0000,,{\b1}如果你想见我们{\b0}
Dialogue: 0,0:05:03.70,0:05:05.90,Default,,0000,0000,0000,,{\b1}创建更多像这样的视频 {\b0}
Dialogue: 0,0:05:05.90,0:05:08.90,Default,,0000,0000,0000,,{\b1}点击点赞和关注按钮 它确实有帮助{\b0}
Dialogue: 0,0:05:09.20,0:05:10.20,Default,,0000,0000,0000,,{\b1}我保证 {\b0}
Dialogue: 0,0:05:10.20,0:05:15.95,Default,,0000,0000,0000,,{\b1}我会把从你们那里得到的每一分钱都花在买克隆机器上{\b0}
Dialogue: 0,0:05:18.74,0:05:24.28,Default,,0000,0000,0000,,{\b1}好吧 你可以用一个锁扣挂40个我{\b0}
Dialogue: 0,0:05:24.90,0:05:26.03,Default,,0000,0000,0000,,{\b1}这很厉害{\b0}
Dialogue: 0,0:05:26.82,0:05:29.53,Default,,0000,0000,0000,,{\b1}虽然有些事情你必须知道 {\b0}
Dialogue: 0,0:05:29.53,0:05:33.74,Default,,0000,0000,0000,,{\b1}首先 这些负荷参数是针对新装备的{\b0}
Dialogue: 0,0:05:34.11,0:05:36.90,Default,,0000,0000,0000,,{\b1}磨损不包括在这个评级之内{\b0}
Dialogue: 0,0:05:37.61,0:05:38.90,Default,,0000,0000,0000,,{\b1}这有多糟糕{\b0}
Dialogue: 0,0:05:39.24,0:05:44.20,Default,,0000,0000,0000,,{\b1}我问了我在油管HowNOTtoHighline频道的朋友Ryan{\b0}
Dialogue: 0,0:05:44.20,0:05:47.40,Default,,0000,0000,0000,,{\b1}因为他有破坏东西的爱好{\b0}
Dialogue: 0,0:05:47.99,0:05:49.78,Default,,0000,0000,0000,,{\b1}根据他的测试{\b0}
Dialogue: 0,0:05:50.11,0:05:53.32,Default,,0000,0000,0000,,{\b1}大多数金属都很耐用{\b0}
Dialogue: 0,0:05:53.49,0:05:55.74,Default,,0000,0000,0000,,{\b1}而软性材料的东西{\b0}
Dialogue: 0,0:05:56.07,0:05:58.70,Default,,0000,0000,0000,,{\b1}完全不同{\b0}
Dialogue: 0,0:05:59.07,0:06:02.66,Default,,0000,0000,0000,,{\b1}[Ryan] BD的 22KN 扁带{\b0}
Dialogue: 0,0:06:09.07,0:06:09.36,Default,,0000,0000,0000,,{\b1}什么{\b0}
Dialogue: 0,0:06:10.66,0:06:13.28,Default,,0000,0000,0000,,{\b1}MBS是多少 22kn吗{\b0}
Dialogue: 0,0:06:13.32,0:06:17.32,Default,,0000,0000,0000,,{\b1}是的 一个性能为22kn的扁带{\b0}
Dialogue: 0,0:06:17.32,0:06:18.95,Default,,0000,0000,0000,,{\b1}在6kn左右就断了{\b0}
Dialogue: 0,0:06:19.86,0:06:21.28,Default,,0000,0000,0000,,{\b1}接下来是另一个例子{\b0}
Dialogue: 0,0:06:22.28,0:06:24.82,Default,,0000,0000,0000,,{\b1}[Ryan] 这是另一个状态很好的扁带{\b0}
Dialogue: 0,0:06:24.82,0:06:26.99,Default,,0000,0000,0000,,{\b1} 没拉扯过{\b0}
Dialogue: 0,0:06:27.66,0:06:28.90,Default,,0000,0000,0000,,{\b1}[Ryan] 对 没拉扯过{\b0}
Dialogue: 0,0:06:30.32,0:06:31.78,Default,,0000,0000,0000,,{\b1}我会把我的狗拴在上面{\b0}
Dialogue: 0,0:06:38.20,0:06:39.82,Default,,0000,0000,0000,,{\b1}我可不会把一条大狗拴在上面 {\b0}
Dialogue: 0,0:06:43.36,0:06:47.11,Default,,0000,0000,0000,,{\b1}让我们看看你能用这个牵住多大的狗{\b0}
Dialogue: 0,0:06:48.07,0:06:49.74,Default,,0000,0000,0000,,{\b1}哦 一个吉娃娃吗?{\b0}
Dialogue: 0,0:06:50.70,0:06:54.57,Default,,0000,0000,0000,,{\b1}是的 所以如果你是那种喜欢省钱的人 {\b0}
Dialogue: 0,0:06:54.57,0:06:57.57,Default,,0000,0000,0000,,{\b1}用着很旧的且磨损的扁带{\b0}
Dialogue: 0,0:06:58.28,0:06:58.78,Default,,0000,0000,0000,,{\b1}祝你好运{\b0}
Dialogue: 0,0:06:58.90,0:06:59.61,Default,,0000,0000,0000,,{\b1}24kn{\b0}
Dialogue: 0,0:07:04.36,0:07:05.66,Default,,0000,0000,0000,,{\b1}这并没有延伸太多 {\b0}
Dialogue: 0,0:07:05.66,0:07:08.66,Default,,0000,0000,0000,,{\b1} 哦 猜猜猜{\b0}
Dialogue: 0,0:07:08.66,0:07:09.49,Default,,0000,0000,0000,,{\b1}你猜怎么着?{\b0}
Dialogue: 0,0:07:09.49,0:07:11.16,Default,,0000,0000,0000,,{\b1}[Ryan] 4kn{\b0}
Dialogue: 0,0:07:11.16,0:07:13.16,Default,,0000,0000,0000,,{\b1}搞什么鬼 伙计 {\b0}
Dialogue: 0,0:07:13.16,0:07:18.82,Default,,0000,0000,0000,,{\b1}4kn 那这个扁带能承受多少{\b0}
Dialogue: 0,0:07:19.45,0:07:23.74,Default,,0000,0000,0000,,{\b1}这很简单 只要用4000除以9.8{\b0}
Dialogue: 0,0:07:24.49,0:07:26.86,Default,,0000,0000,0000,,{\b1}如果你想简单一点 除10代替 {\b0}
Dialogue: 0,0:07:26.86,0:07:29.16,Default,,0000,0000,0000,,{\b1}你得到400公斤 {\b0}
Dialogue: 0,0:07:29.86,0:07:32.66,Default,,0000,0000,0000,,{\b1}这听起来很多{\b0}
Dialogue: 0,0:07:34.07,0:07:34.86,Default,,0000,0000,0000,,{\b1}好吧{\b0}
Dialogue: 0,0:07:35.95,0:07:40.70,Default,,0000,0000,0000,,{\b1}所有这些都是我一直在讲的从力到千克的换算{\b0}
Dialogue: 0,0:07:41.32,0:07:45.49,Default,,0000,0000,0000,,{\b1}都是基于重量是静止的这个事实 {\b0}
Dialogue: 0,0:07:45.49,0:07:49.20,Default,,0000,0000,0000,,{\b1}一旦物体开始下落 一切都会改变{\b0}
Dialogue: 0,0:07:53.90,0:07:56.78,Default,,0000,0000,0000,,{\b1}你们刚才看到的是DMM的一段视频 {\b0}
Dialogue: 0,0:07:56.78,0:07:59.78,Default,,0000,0000,0000,,{\b1}他们扔下了80公斤的重物{\b0}
Dialogue: 0,0:07:59.78,0:08:02.78,Default,,0000,0000,0000,,{\b1}破坏了一个全新的Dyneema扁带{\b0}
Dialogue: 0,0:08:03.61,0:08:05.66,Default,,0000,0000,0000,,{\b1}我的目的不是吓唬你 {\b0}
Dialogue: 0,0:08:05.66,0:08:07.16,Default,,0000,0000,0000,,{\b1}恰恰相反 {\b0}
Dialogue: 0,0:08:07.16,0:08:10.78,Default,,0000,0000,0000,,{\b1}我想让大家意识到 攀岩装备并不是魔法{\b0}
Dialogue: 0,0:08:10.99,0:08:14.24,Default,,0000,0000,0000,,{\b1}如果你使用错误 它可能会失效{\b0}
Dialogue: 0,0:08:16.78,0:08:17.90,Default,,0000,0000,0000,,{\b1}事实上 {\b0}
Dialogue: 0,0:08:17.90,0:08:19.70,Default,,0000,0000,0000,,{\b1}你知道岩友在攀爬失败时{\b0}
Dialogue: 0,0:08:19.70,0:08:21.70,Default,,0000,0000,0000,,{\b1}喜欢说的这个笑话吗?{\b0}
Dialogue: 0,0:08:21.90,0:08:24.20,Default,,0000,0000,0000,,{\b1}今天的引力有点大{\b0}
Dialogue: 0,0:08:24.90,0:08:26.74,Default,,0000,0000,0000,,{\b1}事实证明这是真的{\b0}
Dialogue: 0,0:08:27.11,0:08:29.86,Default,,0000,0000,0000,,{\b1} 重力确实每个月都在变化{\b0}
Dialogue: 0,0:08:30.28,0:08:30.66,Default,,0000,0000,0000,,{\b1}所以{\b0}
Dialogue: 0,0:08:30.86,0:08:35.90,Default,,0000,0000,0000,,{\b1}如果你是那种喜欢抱怨今天湿度{\b0}
Dialogue: 0,0:08:35.90,0:08:37.20,Default,,0000,0000,0000,,{\b1}或温度不好的人{\b0}
Dialogue: 0,0:08:37.20,0:08:40.99,Default,,0000,0000,0000,,{\b1}现在你有权利抱怨今天是糟糕的重力日{\b0}
Dialogue: 0,0:08:41.86,0:08:47.82,Default,,0000,0000,0000,,{\b1}好了 让我们看看当物体开始下落时会发生什么 {\b0}
Dialogue: 0,0:08:51.11,0:08:53.32,Default,,0000,0000,0000,,{\b1}这是一个10米长度的下落{\b0}
Dialogue: 0,0:08:54.20,0:08:57.53,Default,,0000,0000,0000,,{\b1}让我们看看这样的下落会给攀登者带来多大的力{\b0}
Dialogue: 0,0:08:58.11,0:09:01.78,Default,,0000,0000,0000,,{\b1}它的公式和之前的差不多 {\b0}
Dialogue: 0,0:09:01.78,0:09:03.90,Default,,0000,0000,0000,,{\b1}除了需要乘以这个{\b0}
Dialogue: 0,0:09:04.24,0:09:06.78,Default,,0000,0000,0000,,{\b1}攀爬者下落的距离{\b0}
Dialogue: 0,0:09:07.07,0:09:11.03,Default,,0000,0000,0000,,{\b1}然后除以攀爬者减速的距离{\b0}
Dialogue: 0,0:09:16.90,0:09:18.57,Default,,0000,0000,0000,,{\b1}你有没有注意到 {\b0}
Dialogue: 0,0:09:18.57,0:09:21.11,Default,,0000,0000,0000,,{\b1}攀爬者落下时的冲击力相对比较软{\b0}
Dialogue: 0,0:09:23.28,0:09:26.07,Default,,0000,0000,0000,,{\b1}所以想象一下在高速公路上开车 {\b0}
Dialogue: 0,0:09:26.61,0:09:31.03,Default,,0000,0000,0000,,{\b1}通过轻轻地踩下刹车去停车{\b0}
Dialogue: 0,0:09:31.57,0:09:32.66,Default,,0000,0000,0000,,{\b1}没有问题对吧{\b0}
Dialogue: 0,0:09:33.03,0:09:35.28,Default,,0000,0000,0000,,{\b1}现在想象你没有开那么快{\b0}
Dialogue: 0,0:09:35.28,0:09:37.66,Default,,0000,0000,0000,,{\b1}你在一个城市里 你开得很慢 {\b0}
Dialogue: 0,0:09:37.66,0:09:39.20,Default,,0000,0000,0000,,{\b1}但是你撞上了一座桥{\b0}
Dialogue: 0,0:09:40.28,0:09:43.36,Default,,0000,0000,0000,,{\b1}感觉不太好 对吧?{\b0}
Dialogue: 0,0:09:43.57,0:09:46.82,Default,,0000,0000,0000,,{\b1}这是我想让你们记住的第一件事{\b0}
Dialogue: 0,0:09:47.24,0:09:49.90,Default,,0000,0000,0000,,{\b1}对攀登者的冲击{\b0}
Dialogue: 0,0:09:49.90,0:09:56.74,Default,,0000,0000,0000,,{\b1}永远是攀登者下落的距离除以下落面距离{\b0}
Dialogue: 0,0:09:57.53,0:09:59.20,Default,,0000,0000,0000,,{\b1}让我们计算一下{\b0}
Dialogue: 0,0:09:59.20,0:10:02.20,Default,,0000,0000,0000,,{\b1}下落的距离大约是4个快挂 {\b0}
Dialogue: 0,0:10:02.40,0:10:05.90,Default,,0000,0000,0000,,{\b1}而下降的距离大约是2个半快挂{\b0}
Dialogue: 0,0:10:06.57,0:10:09.57,Default,,0000,0000,0000,,{\b1}我们得到大约860牛顿{\b0}
Dialogue: 0,0:10:09.57,0:10:13.82,Default,,0000,0000,0000,,{\b1}或者如果我们用这个标准的80公斤的攀爬者来代替{\b0}
Dialogue: 0,0:10:13.82,0:10:17.66,Default,,0000,0000,0000,,{\b1}大约是1.3kn{\b0}
Dialogue: 0,0:10:18.57,0:10:19.49,Default,,0000,0000,0000,,{\b1}这并不多{\b0}
Dialogue: 0,0:10:20.16,0:10:22.53,Default,,0000,0000,0000,,{\b1}尽管这个公式有一个小问题 {\b0}
Dialogue: 0,0:10:22.53,0:10:28.45,Default,,0000,0000,0000,,{\b1}因为它总是会给你一个值 比实际值略低{\b0}
Dialogue: 0,0:10:28.90,0:10:31.82,Default,,0000,0000,0000,,{\b1}但是展示更精确地计算 {\b0}
Dialogue: 0,0:10:31.82,0:10:35.74,Default,,0000,0000,0000,,{\b1}这意味着你们中的大多数人可能会离开这个视频{\b0}
Dialogue: 0,0:10:36.07,0:10:37.90,Default,,0000,0000,0000,,{\b1}但我们不需要这样做{\b0}
Dialogue: 0,0:10:37.90,0:10:41.61,Default,,0000,0000,0000,,{\b1}因为我们可以依靠现实生活中的实验数据{\b0}
Dialogue: 0,0:10:41.86,0:10:45.03,Default,,0000,0000,0000,,{\b1}谁为我们提供这些数据{\b0}
Dialogue: 0,0:10:45.28,0:10:46.74,Default,,0000,0000,0000,,{\b1}大家好 我是Ryan Jenks {\b0}
Dialogue: 0,0:10:46.74,0:10:49.07,Default,,0000,0000,0000,,{\b1}广告已经足够了{\b0}
Dialogue: 0,0:10:49.36,0:10:50.78,Default,,0000,0000,0000,,{\b1}在这个视频中 {\b0}
Dialogue: 0,0:10:50.78,0:10:54.20,Default,,0000,0000,0000,,{\b1}他们放了一个设备来测量攀爬者所受的力{\b0}
Dialogue: 0,0:10:54.20,0:10:56.49,Default,,0000,0000,0000,,{\b1}然后做了一系列的冲坠{\b0}
Dialogue: 0,0:11:07.28,0:11:09.11,Default,,0000,0000,0000,,{\b1}为了科学{\b0}
Dialogue: 0,0:11:13.99,0:11:15.82,Default,,0000,0000,0000,,{\b1}1.87kn的力{\b0}
Dialogue: 0,0:11:16.11,0:11:17.24,Default,,0000,0000,0000,,{\b1}所以在我看来{\b0}
Dialogue: 0,0:11:17.24,0:11:20.24,Default,,0000,0000,0000,,{\b1}大部分的冲坠都是一个很好的保护案例{\b0}
Dialogue: 0,0:11:20.49,0:11:22.57,Default,,0000,0000,0000,,{\b1}低于2kn{\b0}
Dialogue: 0,0:11:22.57,0:11:26.07,Default,,0000,0000,0000,,{\b1}现在我们来看看这两个极端的例子{\b0}
Dialogue: 0,0:11:26.57,0:11:29.57,Default,,0000,0000,0000,,{\b1}左边的攀登者在挂片上方5米 {\b0}
Dialogue: 0,0:11:29.57,0:11:31.86,Default,,0000,0000,0000,,{\b1}所以会有10米长的冲坠{\b0}
Dialogue: 0,0:11:31.99,0:11:34.11,Default,,0000,0000,0000,,{\b1}加上绳索的延展性{\b0}
Dialogue: 0,0:11:34.11,0:11:37.07,Default,,0000,0000,0000,,{\b1}保护者可能有一米的余量{\b0}
Dialogue: 0,0:11:37.07,0:11:41.40,Default,,0000,0000,0000,,{\b1}然后在快挂之间可能还有一米的余量{\b0}
Dialogue: 0,0:11:41.70,0:11:44.66,Default,,0000,0000,0000,,{\b1}所以总的来说 我们将看到12米的坠落{\b0}
Dialogue: 0,0:11:44.99,0:11:48.28,Default,,0000,0000,0000,,{\b1}而右边的攀爬距离挂片只有一米{\b0}
Dialogue: 0,0:11:48.61,0:11:51.40,Default,,0000,0000,0000,,{\b1}假设保护员非常害怕{\b0}
Dialogue: 0,0:11:51.40,0:11:54.53,Default,,0000,0000,0000,,{\b1}他要硬生生地接住攀爬者 并没什么缓冲{\b0}
Dialogue: 0,0:11:54.78,0:11:56.82,Default,,0000,0000,0000,,{\b1}我们看到的是两米高的坠落{\b0}
Dialogue: 0,0:11:58.16,0:12:01.03,Default,,0000,0000,0000,,{\b1}所以从12米高的地方摔下来 {\b0}
Dialogue: 0,0:12:01.03,0:12:02.95,Default,,0000,0000,0000,,{\b1}还是从2米高的地方摔下来 {\b0}
Dialogue: 0,0:12:03.16,0:12:06.24,Default,,0000,0000,0000,,{\b1}你觉得哪个对攀岩者来说比较软{\b0}
Dialogue: 0,0:12:06.49,0:12:09.90,Default,,0000,0000,0000,,{\b1}让我们看一下 我们已经知道了会掉下来多少{\b0}
Dialogue: 0,0:12:09.90,0:12:14.53,Default,,0000,0000,0000,,{\b1} 但现在我们需要找出两种情况下的减速距离{\b0}
Dialogue: 0,0:12:14.99,0:12:17.28,Default,,0000,0000,0000,,{\b1}这主要取决于两个因素{\b0}
Dialogue: 0,0:12:17.57,0:12:20.36,Default,,0000,0000,0000,,{\b1}首先是保护者的位移{\b0}
Dialogue: 0,0:12:20.74,0:12:22.07,Default,,0000,0000,0000,,{\b1}一个非常非常大的冲坠 {\b0}
Dialogue: 0,0:12:22.07,0:12:25.07,Default,,0000,0000,0000,,{\b1}保护员大概会飞两米左右{\b0}
Dialogue: 0,0:12:26.28,0:12:27.28,Default,,0000,0000,0000,,{\b1}在小的冲坠时 {\b0}
Dialogue: 0,0:12:27.28,0:12:30.28,Default,,0000,0000,0000,,{\b1} 让我们假设 对于初学者来说有非常常见的错误{\b0}
Dialogue: 0,0:12:30.28,0:12:34.03,Default,,0000,0000,0000,,{\b1}保护员只是收紧绳子和反应迟钝{\b0}
Dialogue: 0,0:12:34.49,0:12:37.74,Default,,0000,0000,0000,,{\b1}第二个因素是绳子的伸展性{\b0}
Dialogue: 0,0:12:38.24,0:12:40.16,Default,,0000,0000,0000,,{\b1}绳子制造商声称 {\b0}
Dialogue: 0,0:12:40.16,0:12:43.49,Default,,0000,0000,0000,,{\b1}如果你把80公斤的质量放在一根动力绳子上{\b0}
Dialogue: 0,0:12:43.82,0:12:46.61,Default,,0000,0000,0000,,{\b1}像这样静止不动{\b0}
Dialogue: 0,0:12:47.03,0:12:49.28,Default,,0000,0000,0000,,{\b1}绳子会伸长10%{\b0}
Dialogue: 0,0:12:49.28,0:12:52.28,Default,,0000,0000,0000,,{\b1}当你先锋状态下冲坠 动态拉伸将会 {\b0}
Dialogue: 0,0:12:52.53,0:12:54.70,Default,,0000,0000,0000,,{\b1}高达30%{\b0}
Dialogue: 0,0:12:55.49,0:12:58.66,Default,,0000,0000,0000,,{\b1}嗯 高达30%对我们来说不是很有帮助{\b0}
Dialogue: 0,0:12:58.66,0:13:01.78,Default,,0000,0000,0000,,{\b1}我们需要知道的是绳子{\b0}
Dialogue: 0,0:13:02.36,0:13:06.32,Default,,0000,0000,0000,,{\b1}从2到4千牛顿的拉力时的变化{\b0}
Dialogue: 0,0:13:06.86,0:13:09.28,Default,,0000,0000,0000,,{\b1}再一次 我给Ryan发了消息{\b0}
Dialogue: 0,0:13:09.28,0:13:12.99,Default,,0000,0000,0000,,{\b1}所以我要拉一根动态绳子 看看它拉伸了多少{\b0}
Dialogue: 0,0:13:12.99,0:13:14.86,Default,,0000,0000,0000,,{\b1}一开始 我们以为会很简单{\b0}
Dialogue: 0,0:13:14.86,0:13:16.11,Default,,0000,0000,0000,,{\b1}去公园就行{\b0}
Dialogue: 0,0:13:16.11,0:13:18.32,Default,,0000,0000,0000,,{\b1}用不同的力拉伸绳子{\b0}
Dialogue: 0,0:13:18.40,0:13:20.61,Default,,0000,0000,0000,,{\b1} 测量绳子的伸长{\b0}
Dialogue: 0,0:13:21.16,0:13:24.82,Default,,0000,0000,0000,,{\b1}好吧 有时候简单是困难的{\b0}
Dialogue: 0,0:13:25.16,0:13:28.74,Default,,0000,0000,0000,,{\b1} 然后你把绳子拉到一定的力 然后把它留在那里{\b0}
Dialogue: 0,0:13:29.07,0:13:31.28,Default,,0000,0000,0000,,{\b1}力开始落在绳子上{\b0}
Dialogue: 0,0:13:31.57,0:13:33.11,Default,,0000,0000,0000,,{\b1}绳子就这么断了{\b0}
Dialogue: 0,0:13:33.57,0:13:36.86,Default,,0000,0000,0000,,{\b1}虽然这很有趣 但对我们来说并不致命{\b0}
Dialogue: 0,0:13:36.86,0:13:39.32,Default,,0000,0000,0000,,{\b1}他需要做的唯一一件事{\b0}
Dialogue: 0,0:13:39.32,0:13:42.32,Default,,0000,0000,0000,,{\b1}就是以他所希望的力尽可能快地拉绳子{\b0}
Dialogue: 0,0:13:42.49,0:13:44.49,Default,,0000,0000,0000,,{\b1}然后测量拉伸程度{\b0}
Dialogue: 0,0:13:46.11,0:13:48.07,Default,,0000,0000,0000,,{\b1}天啊 那是七米标志{\b0}
Dialogue: 0,0:13:49.74,0:13:52.20,Default,,0000,0000,0000,,{\b1}6.9米 {\b0}
Dialogue: 0,0:13:53.16,0:13:59.53,Default,,0000,0000,0000,,{\b1}这是4kn情况下动力绳的伸展长度{\b0}
Dialogue: 0,0:13:59.53,0:14:01.57,Default,,0000,0000,0000,,{\b1}但还有另一个有趣的因素 {\b0}
Dialogue: 0,0:14:01.57,0:14:04.20,Default,,0000,0000,0000,,{\b1}一旦你给绳子施加大的力{\b0}
Dialogue: 0,0:14:04.45,0:14:08.36,Default,,0000,0000,0000,,{\b1}绳子需要一段时间才能恢复到原来的长度 {\b0}
Dialogue: 0,0:14:08.61,0:14:11.11,Default,,0000,0000,0000,,{\b1}这就是所谓的绳索休息{\b0}
Dialogue: 0,0:14:11.57,0:14:13.86,Default,,0000,0000,0000,,{\b1}看这些变化真的很酷{\b0}
Dialogue: 0,0:14:13.86,0:14:17.03,Default,,0000,0000,0000,,{\b1}看到龟龟慢慢被拉回来了吗?{\b0}
Dialogue: 0,0:14:19.78,0:14:21.11,Default,,0000,0000,0000,,{\b1}超级有趣{\b0}
Dialogue: 0,0:14:22.24,0:14:24.78,Default,,0000,0000,0000,,{\b1}也许我现在比你更感兴趣{\b0}
Dialogue: 0,0:14:25.36,0:14:28.86,Default,,0000,0000,0000,,{\b1}他在公园里拉了四个小时的绳子{\b0}
Dialogue: 0,0:14:29.24,0:14:33.74,Default,,0000,0000,0000,,{\b1}结果是在2到4kn的力作用下{\b0}
Dialogue: 0,0:14:33.95,0:14:37.36,Default,,0000,0000,0000,,{\b1}绳子拉伸到大约20%{\b0}
Dialogue: 0,0:14:37.90,0:14:40.82,Default,,0000,0000,0000,,{\b1}很好 我们把它用到计算中{\b0}
Dialogue: 0,0:14:41.16,0:14:45.24,Default,,0000,0000,0000,,{\b1}在一个大的下落过程中 我们总共有27米的绳子 {\b0}
Dialogue: 0,0:14:45.24,0:14:49.28,Default,,0000,0000,0000,,{\b1}所以这将是5.4米的拉伸{\b0}
Dialogue: 0,0:14:49.70,0:14:52.74,Default,,0000,0000,0000,,{\b1}在一个小的下落过程中 我们有5米长的绳子 {\b0}
Dialogue: 0,0:14:52.74,0:14:54.99,Default,,0000,0000,0000,,{\b1}那就是1米的拉伸{\b0}
Dialogue: 0,0:14:55.20,0:14:58.36,Default,,0000,0000,0000,,{\b1}然而 我们的保护员却惊慌失措 奋力挣扎{\b0}
Dialogue: 0,0:14:58.74,0:15:05.61,Default,,0000,0000,0000,,{\b1}所以他会自己留半米 给攀登者留下半米{\b0}
Dialogue: 0,0:15:06.66,0:15:09.82,Default,,0000,0000,0000,,{\b1}对于攀岩者来说 长距离的冲坠 {\b0}
Dialogue: 0,0:15:09.82,0:15:15.28,Default,,0000,0000,0000,,{\b1}比小的冲坠要软2.5倍{\b0}
Dialogue: 0,0:15:16.45,0:15:19.07,Default,,0000,0000,0000,,{\b1}我喜欢有趣的事实 这是另一个 {\b0}
Dialogue: 0,0:15:19.18,0:15:21.35,Default,,0000,0000,0000,,{\b1}想象一下你没有完攀{\b0}
Dialogue: 0,0:15:21.85,0:15:27.39,Default,,0000,0000,0000,,{\b1}但是那天的湿度 温度 甚至重力都很好{\b0}
Dialogue: 0,0:15:28.45,0:15:30.61,Default,,0000,0000,0000,,{\b1}你仍然可以责怪月亮{\b0}
Dialogue: 0,0:15:30.61,0:15:32.57,Default,,0000,0000,0000,,{\b1}[旁白]可以忽略不计 但确实{\b0}
Dialogue: 0,0:15:33.22,0:15:38.56,Default,,0000,0000,0000,,{\b1}当月亮正对着你时 你的体重会减少一百万分之一{\b0}
Dialogue: 0,0:15:38.82,0:15:42.86,Default,,0000,0000,0000,,{\b1}所以 如果你想在月亮正对着你的时候完成线路{\b0}
Dialogue: 0,0:15:43.53,0:15:45.16,Default,,0000,0000,0000,,{\b1}那加油{\b0}
Dialogue: 0,0:15:45.57,0:15:50.07,Default,,0000,0000,0000,,{\b1}我记得当时我在攀爬一条35米长的路线{\b0}
Dialogue: 0,0:15:50.32,0:15:53.11,Default,,0000,0000,0000,,{\b1}这是我第一次成功地把所有的动作连接起来{\b0}
Dialogue: 0,0:15:53.28,0:15:54.82,Default,,0000,0000,0000,,{\b1}到达顶部锚点时{\b0}
Dialogue: 0,0:15:55.03,0:15:58.70,Default,,0000,0000,0000,,{\b1}当我把绳子拉上来准备放入绳子的时候{\b0}
Dialogue: 0,0:15:58.70,0:16:01.28,Default,,0000,0000,0000,,{\b1}我的保护员看不清楚我{\b0}
Dialogue: 0,0:16:01.28,0:16:03.24,Default,,0000,0000,0000,,{\b1}所以他就给了我很大的绳子余量{\b0}
Dialogue: 0,0:16:03.26,0:16:09.43,Default,,0000,0000,0000,,{\b1}最重要的是 倒数那把挂片在很下面的位置{\b0}
Dialogue: 0,0:16:10.20,0:16:15.16,Default,,0000,0000,0000,,{\b1}所以当我把绳子往上拉的时候 我失去了平衡 摔了下去{\b0}
Dialogue: 0,0:16:15.82,0:16:18.90,Default,,0000,0000,0000,,{\b1}墙在我面前飞舞 {\b0}
Dialogue: 0,0:16:18.90,0:16:21.90,Default,,0000,0000,0000,,{\b1}我在想为什么我还在下落 嗯 这很不寻常{\b0}
Dialogue: 0,0:16:21.95,0:16:23.78,Default,,0000,0000,0000,,{\b1}然后我停下来 抬头看了看{\b0}
Dialogue: 0,0:16:23.78,0:16:26.16,Default,,0000,0000,0000,,{\b1}我上方大概有五六把快挂 {\b0}
Dialogue: 0,0:16:26.16,0:16:29.07,Default,,0000,0000,0000,,{\b1}大概有十五米的坠落{\b0}
Dialogue: 0,0:16:29.54,0:16:32.54,Default,,0000,0000,0000,,{\b1}但是下落的过程非常柔软 {\b0}
Dialogue: 0,0:16:32.58,0:16:34.16,Default,,0000,0000,0000,,{\b1}就像坐电梯一样 {\b0}
Dialogue: 0,0:16:34.37,0:16:36.58,Default,,0000,0000,0000,,{\b1}这是这个视频的另一个要点 {\b0}
Dialogue: 0,0:16:36.85,0:16:38.93,Default,,0000,0000,0000,,{\b1}如果攀爬者在很高的位置{\b0}
Dialogue: 0,0:16:39.17,0:16:41.59,Default,,0000,0000,0000,,{\b1}他有很多绳子来承受坠落 {\b0}
Dialogue: 0,0:16:41.70,0:16:44.70,Default,,0000,0000,0000,,{\b1}只要他不掉到什么东西上{\b0}
Dialogue: 0,0:16:44.94,0:16:48.44,Default,,0000,0000,0000,,{\b1}无论你如何保护 摔下去的时候会很轻{\b0}
Dialogue: 0,0:16:49.22,0:16:51.82,Default,,0000,0000,0000,,{\b1}然而 如果高度不那么高{\b0}
Dialogue: 0,0:16:52.03,0:16:54.78,Default,,0000,0000,0000,,{\b1}他没有那么多的绳子来吸收下落{\b0}
Dialogue: 0,0:16:54.78,0:16:58.99,Default,,0000,0000,0000,,{\b1}那么一个好的动态缓冲保护是非常重要的{\b0}
Dialogue: 0,0:16:59.70,0:17:02.53,Default,,0000,0000,0000,,{\b1}你可以问任何一个轻度攀岩者{\b0}
Dialogue: 0,0:17:02.57,0:17:07.36,Default,,0000,0000,0000,,{\b1} 有多少次他们的脚踝因为硬着陆而受伤{\b0}
Dialogue: 0,0:17:07.66,0:17:09.53,Default,,0000,0000,0000,,{\b1}好了 让我们换个话题{\b0}
Dialogue: 0,0:17:09.53,0:17:11.36,Default,,0000,0000,0000,,{\b1}我们来谈谈摩擦{\b0}
Dialogue: 0,0:17:11.70,0:17:17.03,Default,,0000,0000,0000,,{\b1}因为摩擦力越大 对攀登者来说 摔得越重{\b0}
Dialogue: 0,0:17:17.36,0:17:19.70,Default,,0000,0000,0000,,{\b1}这有一个非常极端的例子{\b0}
Dialogue: 0,0:17:19.70,0:17:22.70,Default,,0000,0000,0000,,{\b1}你们可以看到这里快挂成Z字形{\b0}
Dialogue: 0,0:17:23.78,0:17:27.66,Default,,0000,0000,0000,,{\b1}所以当我下落时 会有很大的摩擦力{\b0}
Dialogue: 0,0:17:27.90,0:17:29.07,Default,,0000,0000,0000,,{\b1}哇 为了科学{\b0}
Dialogue: 0,0:17:34.28,0:17:39.49,Default,,0000,0000,0000,,{\b1}所以摩擦力很大 靠近攀登者的绳子正常伸展{\b0}
Dialogue: 0,0:17:39.74,0:17:42.11,Default,,0000,0000,0000,,{\b1}但是保护者附近的绳子 {\b0}
Dialogue: 0,0:17:42.32,0:17:44.03,Default,,0000,0000,0000,,{\b1}不会拉伸太多{\b0}
Dialogue: 0,0:17:44.32,0:17:47.49,Default,,0000,0000,0000,,{\b1}这就像有是更短的绳子 同时有更重的保护员{\b0}
Dialogue: 0,0:17:47.86,0:17:52.40,Default,,0000,0000,0000,,{\b1}让护具承受的力只有2.5kn{\b0}
Dialogue: 0,0:17:52.40,0:17:55.40,Default,,0000,0000,0000,,{\b1}许多力像钟摆一样撞在墙上{\b0}
Dialogue: 0,0:17:57.28,0:17:59.36,Default,,0000,0000,0000,,{\b1}我们就是这样扭断脚踝的{\b0}
Dialogue: 0,0:17:59.70,0:18:03.07,Default,,0000,0000,0000,,{\b1}所以合理的增多快挂{\b0}
Dialogue: 0,0:18:03.07,0:18:05.45,Default,,0000,0000,0000,,{\b1}不仅可以帮助你进快挂和避免这种情况{\b0}
Dialogue: 0,0:18:16.66,0:18:20.36,Default,,0000,0000,0000,,{\b1}同时也减少了攀爬者承受的冲击力{\b0}
Dialogue: 0,0:18:20.64,0:18:25.31,Default,,0000,0000,0000,,{\b1}好 我们回到DMM弄断扁带的测试 {\b0}
Dialogue: 0,0:18:25.61,0:18:29.57,Default,,0000,0000,0000,,{\b1}Dyneema扁带是静态的 根本不会拉伸{\b0}
Dialogue: 0,0:18:29.57,0:18:32.99,Default,,0000,0000,0000,,{\b1}我希望你们现在已经明白这种突然的停止{\b0}
Dialogue: 0,0:18:32.99,0:18:34.86,Default,,0000,0000,0000,,{\b1}可以产生巨大的力{\b0}
Dialogue: 0,0:18:34.99,0:18:37.78,Default,,0000,0000,0000,,{\b1}如果没有明白 请别人扇你一巴掌{\b0}
Dialogue: 0,0:18:37.78,0:18:41.95,Default,,0000,0000,0000,,{\b1}你需要理解的基本就是在脸上的这个停顿{\b0}
Dialogue: 0,0:18:42.03,0:18:43.86,Default,,0000,0000,0000,,{\b1}所以让我们做一个非常大胆的{\b0}
Dialogue: 0,0:18:43.86,0:18:46.16,Default,,0000,0000,0000,,{\b1} 可能是一个非常不准确的猜测 {\b0}
Dialogue: 0,0:18:46.16,0:18:50.40,Default,,0000,0000,0000,,{\b1}这个扁带会大约延伸到5厘米{\b0}
Dialogue: 0,0:18:51.28,0:18:54.32,Default,,0000,0000,0000,,{\b1}所以如果我们放下80千克的质量{\b0}
Dialogue: 0,0:18:54.51,0:18:57.38,Default,,0000,0000,0000,,{\b1}扁带长度120厘米{\b0}
Dialogue: 0,0:18:57.91,0:19:01.62,Default,,0000,0000,0000,,{\b1}吸收距离只有5厘米 {\b0}
Dialogue: 0,0:19:01.82,0:19:05.20,Default,,0000,0000,0000,,{\b1}我们看到的是19kn{\b0}
Dialogue: 0,0:19:06.20,0:19:11.32,Default,,0000,0000,0000,,{\b1}如果这都不能把扁带弄断 那肯定会把你弄断{\b0}
Dialogue: 0,0:19:12.82,0:19:14.32,Default,,0000,0000,0000,,{\b1}如果你还在看 {\b0}
Dialogue: 0,0:19:14.32,0:19:18.07,Default,,0000,0000,0000,,{\b1}这可能意味着你至少应该有点书呆子气 {\b0}
Dialogue: 0,0:19:18.49,0:19:20.40,Default,,0000,0000,0000,,{\b1}这是给你的甜点{\b0}
Dialogue: 0,0:19:21.36,0:19:26.90,Default,,0000,0000,0000,,{\b1}没有引力 物体不会相互吸引{\b0}
Dialogue: 0,0:19:27.07,0:19:29.03,Default,,0000,0000,0000,,{\b1}只有空间和时间{\b0}
Dialogue: 0,0:19:29.03,0:19:31.16,Default,,0000,0000,0000,,{\b1}你觉得自己好像被推入了地下{\b0}
Dialogue: 0,0:19:31.95,0:19:33.99,Default,,0000,0000,0000,,{\b1}不是因为重力 {\b0}
Dialogue: 0,0:19:34.24,0:19:38.78,Default,,0000,0000,0000,,{\b1}而是因为你脑袋上时间比你脚上的时间变化得更快{\b0}
Dialogue: 0,0:19:38.98,0:19:41.53,Default,,0000,0000,0000,,{\b1}所以如果你想看到更多类似的内容 {\b0}
Dialogue: 0,0:19:41.58,0:19:44.71,Default,,0000,0000,0000,,{\b1}不要忘记订阅并支持我们的频道{\b0}