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Health Forum    Injuries

Anna David Sex Columnist
Why Wouldnt This Kill Someone?
If someone jumps off the Golden Gate Bridge, they will be killed instantly when they hit the water. But why is it that when people jump off a waterfall, they walk away fine.
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~!~party girl~!~
maybe because they dive,or if you've seen it in a movie only it could be a made up type of thing.

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GD-Fan
I thought a lot of them dies- When I went to the Niagara Falls Museum- Lots of people dies trying to jump the falls

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Risika
I'm not positive, but i think it has something to do with the water movement. When the water pours into the pool, or where ever it is pouring into, there is a gap that you fall into. But when you hit the surface on water that is still, the pressure and force will kill you. Plus, i doubt the waterfall they jump off of is really big.

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liil mis sunshine?
i dont really know...I am sorry and i wish i could help you but i dont think they would walk away fine!

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Kate
Rating
That is a realy good question. I think its because on a water fall the water it moving there for the surfus of it is already broken, but like you said if you jump of a bridge the surfius of the water isent broken there for you break it with your fall killing your self. have you ever heard people say that it hurts more to get hit with a wall of water then a wall of bricks? its true..well hope I answered your question for you..

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bah
it has to do with the height that you are falling, and if the water is in constant motion. If somone were to jump off the golden gate bridge, it would be like hitting cement because, even though the water is moving..its very heavy and it moves at a slower rate.
Then with a waterfall..i wouldnt say that EVERYONE walks away from it fine, but because the water is moving faster, when you fall..you are pulled into it..causing less friction between you and the water.
that's my personal opinion.

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Yousif (Joe) R
ummm... where did you get the notion that jumping off a waterfall was fine?

I mean, you will die if you jump off a waterfall the size of the Golden Gate Bridge...

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Michelle :-D
Rating
I don't think that's true. I think if you jumped off Niagara falls you wouldn't walk away fine. But that's an interesting question! I would do some research!

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tim2honorgod
Rating
Many variable factors:

☺ Water Temp
☺ Distance to water

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kimberly M
Rating
It has to do with how far you are falling. The longer the fall the faster and harder you will hit the water.

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salah
Rating
if its a usual to them its ok because they get use to may be some people would not belive that but them nail is taft

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Richard T
They don't walk away fine, that only happens in movies.

If you put a fruit stand up on a sidewalk, a car won't automatically crash through it, either.

(and not everyone who jumps from the Golden Gate Bridge dies. Almost everyone, but there are survivors.)

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Dave
the water at the bottom of the waterfall is filled with air pockets and bubbles making it less dense, therefore the impact is very very much softer.

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Casey(keriafu)
Rating
They die from the ridiculous undercurrent, throw something in that bay it'll be gone in three seconds.

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colley411
They don't, that i know of

If they were to though, it would be because the waterfall is breaking the water's surface, below. The impact of jumping off a bridge is what kills you. It's the same as smacking into concrete. But if the pressure is broken up (i.e. the waterfall) you can slip easily into the water. Now the danger in that is the waterfalls pushing you too deep, not allowing you to resurface and/or hitting your head or other body parts on rocks.

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Ashbone
because its called a waterfall.....you fall with water-depending on how far you fall you might get injured and depending on the depth of the water they dont always walk away.

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jack jack
they only walk away ok in movies . not in real life.

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tool2112
Rating
The water from the waterfall is breaking up the water at the bottom

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deniver2003
why do some people survive when their parachute doesn't open? Just their lucky day I guess.

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Steve B
people do survive jumps from golden gate,rarely........flowing water is not as hard to fall onto......you can still die from it.......best thing is not to try this.........

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rachie
gravity?....water feels hard on impact from a distance, a water fall is different somehow.

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jridgeway333
Rating
Here is sight with the answer to your question

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serenity
Maybe because there is much more pressure and room in the water by the golden gate bridge and in a water fall they can have a chance of moving around and hitting land even though some aren't so lucky. The shock is reduced with the water fall but you can die from either of them.

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wrkey
Rating
Surface tension.

When someone jumps off into a 'still' body of water the injuries are caused by their body trying to break the surface tension of the water as well as the fact that the water below the surface is "settled and solid".

Water under a waterfall has the surface tension 'broken up' by the falling water plus the water below the surface is churning and is a mixture of water and air.

Try this experiment. Fill up your bath tub about have full. With the water off, slap the top of the still water with your hand and remember what that feels like. Now.. turn on the faucet and slap the surface where the flowing water hits. Compare the two sensations. Even at this speed (of the slap) you'll be able to sense the difference.

Keep in mind the physics of the fall as well. After about 100ft you are falling at the maximum velocity of around 100mph so unless there is something ahead of you to 'break the surface tension' it's not going to be pretty!

Hope this helps!

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Sweet_Bama
Maybe the water carries them?

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Chase D
Rating
maybe something to do with the churning water, so the water is not like a birck wall when you hit it, instead it is more absorbing?

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sweetjade210
Rating
The golden gate bridge is probably a lot higher than the waterfall your talking about. Jumping off the golden gate bridge and hitting the water is the same as hitting cement.

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cmdrbnd007
Because it isn't as high.

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Anna J
because when they jump off the Bridge... their body is breaking the water.... and in turn will break the body because of impact... when jumping off a waterfall the water below is already flowing and "broken" so there is less impact when the body hits the water. that is my best guess.

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llcentlous
the waterfall hitting the surface of the water below causes a break, so when a person hits it, it is not like hitting cement... when you jump from a bridge, the water is much more calm, so hits with much harder impact...

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Christine
Has to do with water's surface tension. At the bottom of the waterfall, there is hardly any surface tension because it has been broken by the falling water already. So you only feel the impact that the actual water's pressure has on you.
Jumping into a larger, more still body of water means you face the pressure of the surface tension as well, which can be deadly.
Surface tension is when the molecules on the top of the water sort of stick or meld together. It's why small bugs can sit on the surface of water in some places.

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