實際發生的情況 VS 外人所看到的情況。
昨天我發布了跳水影片，這似乎使人們感到惱火。許多人認為這樣的發文是煽動危險的行為。
“很糟糕的示範，無知的人會跟著模仿然後發生意外而死”
為什麼總是別人表現得不負責任？
從來沒有人評論說“我可能會反覆跳水而死去？”
為什麼別人如此不信任？
是什麼讓您的判斷比其他所有人的判斷要好得多？
人們不必擔心觀看影片然後再重複播放。如果您相信這樣的人的存在，那麼“玩命關頭”的電影會讓您太害怕不敢離開家了，以免擔心遇到魯莽的駕駛員。
該影片用手機高影格率（慢動作）拍攝。長時間的飛行使它看起來像是跳得很高，但實際高度只有6.5公尺高。
雖然不是特別高，但是如果您背部落水或腹部落水，這種高度可能還是會覺得很痛。
我會知道，是因為我不擅長做後空翻，但無論如何我還是會嘗試。肚子落水上並不是致命的，但這也不是一件好事。
這就是為什麼我影片裡跳水方式都是伸直雙腳，雙手臂擺放在身體兩側。實際上，這是一個很好的動作示範。
我總是告訴人們在跳水之前檢查水的深度，並確保水中沒有障礙物。
但是當我們說“跳前先看一看”時，我們真正的意思是“在你行動前要先思考”。
爬上平台有風險嗎？
我要從穩定平台上跳下來嗎？
我的計劃著陸區在哪裡？
著陸區中是否有人或物體？
水的深度適合從這個高度跳嗎？
跳躍時我會在空中做什麼？
我計劃著陸的方向是什麼？
我可以在這些條件下游泳嗎？
跳水後如何離開水面？
我是否需要任何其他設備，例如手套或救生衣或頭盔？
尋問跳水區附近有人嗎？他們知道我在跳水嗎？
這些都不是複雜的問題，也不需要任何技術培訓。這只是基本常識。大多數人無需考慮即可自動執行此操作。
以上並不是特別危險。人們在人身安全方面通常是安全和負責的，有幾個重要例外。真正的安全提示在這裡：
1）跳懸崖時切勿飲酒。
您會驚訝於自然界發生了多少次與酒精有關的事故。
2）切勿向任何人施壓，讓他們嘗試自己不舒服的特技。
如果某人感到害怕，那是因為他們缺乏必要的技能或經驗。這會增加了風險。要教導/不要強迫或欺負霸凌
3）永遠知道你的極限在哪。
採取嬰兒的步驟。在不諮詢經驗豐富的人的情況下，請勿嘗試超出您的經驗水平的事情。忽略任何給您施加壓力或激你的人。他們不會是好朋友。
4）不要試圖做任何愚蠢的事情來打動一個女孩。
這不值得。在接受調查的10位女性中，有9位偏好沒有頭部受傷的男性。
現在去實驗在河邊玩得開心。嘗試去懸崖跳水。盡可能地爬高。在這過程，如果您在任何時候階段感到不舒服時，可以慢慢後退並從較低的地方跳下來，或者根本就不要跳。
和您信任的朋友一起去，並互相觀察注意對方。
首先檢查天氣。提前準備所需的裝備。您可能需要一個漂浮裝備(救生衣或浮標等）。如果您發現之後沒有足夠的裝備，則不需要嘗試去做未做好準備的事。選擇準備好的一天再去玩。
按照這些基本步驟進行操作，您很快就會意識到歇斯底里並不是實現水安全的正確方法。但知識教育和準備好卻是安全的方式。
*跳躍高度是根據h = 1 / 2gt ^ 2，t = 1.154s + -0.004s（240fps）從跳躍頂點確定的
What really happens VS what people see.
Yesterday I posted this which seemed to rile people up. Many people think posting like this is inciting dangerous behavior. "Bad Demonstration. Ignorant people will follow this and die". Why is it always other people who are behaving irresponsibly. No ever ever comments "I might try to repeat this and die" Why is there so much distrust of other people? What makes your judgement so much better than everyone else's?
People aren't at risk from watching a video and then trying to repeat it. If you believed people like that existed then the "fast and the furious "movies would make you too scared to leave the house for fear of reckless drivers.
The video was filmed at a high frame rate (slow motion). Long airtime gives it the appearance of being a very high jump, but it's only 6.5 meters. While not particularly high, this is still high enough to be painful if you landed on your back or stomach. I know, because I'm not good at doing backflips, but I still try anyway. Landing on your stomach isn’t fatal, but it’s not fun either. That's why I recommend jumping feet first, hands in, as seen in the video. It's actually quite a good demonstration.
I always tell people to check water depth and ensure there are no obstructions before jumping. But when we say "look before you jump" what we really mean is "Think before you act".
Is it risky to climb up to the platform?
Is the platform I am jumping from stable?
Where is my planned landing zone?
Are there any people or objects in the landing zone?
Is the depth of the water suitable for jumping from this height?
What will I do in the air while jumping?
What is my planned body orientation for landing?
Can I swim in these conditions?
How will I exit the water after jumping?
Do I need any additional equipment such as gloves or a life jacket?
Are there people nearby? Do they know I am jumping?
None of these are complicated questions and none require any technical training. This is just basic common sense. Most people do this automatically, without even having to think about it.
The above isn't especially dangerous. People are generally safe and responsible when it comes to their personal safety with a few important exceptions. The real safety tips are down here:
1) Never consume alcohol while cliff jumping. You'd be surprised how many accidents in nature involve alcohol.
2) Never pressure anyone into attempting a stunt they are not comfortable with. If someone is scared, it's because they lack the requisite skill or experience. This increases risk. Teach. Don't tease .
3) Know your limits. Take baby steps. Don't attempt something far above your experience level without consulting someone with more experience. Ignore anyone who is pressuring you. They're not being good friends.
4) Don't do anything stupid to impress a girl. It's not worth it. 9 out of 10 women surveyed preferred men without head injuries.
Now go out to the river and have some fun. Go cliff jumping. Climb as high as you feel comfortable. And if at any time if you feel uncomfortable, just back down and jump from somewhere lower, or not at all. Go with friends that you trust, and watch out for each other. Check the weather first. Prepare equipment you need in advance. You may need a flotation device. If you realize you don’t have enough equipment later, you don’t need to attempt anything you are not prepared for. Just come back and play another day.
Follow these basic steps and you will soon realize that hysteria isn’t the proper approach to water safety. Knowledge and preparation is.
*jump height determined using h= 1/2gt^2, t=1.154s+-0.004s (240fps), from apex of jump
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