why is jumping off a bridge often fatal, but people are rarely injured in high diving?
In: Physics
U.S. Navy abandon ship drills:
Wear your clothing including your shoes.
Go feet first.
Cross your legs at the ankles and clutch them together tightly. (You don’t want a high velocity sea water enema or have your legs dislocated when forced into a full extension split by the impact.)
Cross one arm across the chest and clutch your elbow tightly to the chest. With the other hand cover the mouth and nose tightly with the hand. The Sea will be COLD and it is reflex to suck in a breath when you get dunked in cold water. You DO NOT want to suck in a breath until you get back to the surface.
You will go deep. Stay tight until you quit falling down. Minimize your risk of hitting debris.
Follow bubbles to get back to the surface. If it is too dark to see bubbles’ drift up. You don’t want to be swimming for the bottom thinking you are headed for air.
If there is burning fuel on the surface; stir the surface to clear a space so you can surface to breath. Swim underwater until clear of burning before going into a survival float.
Unless it is an emergency in open sea; you really should be jumping into known conditions. Any dive from height is dangerous.
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