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Stab in the dark

Simple, mass production deepsea challenge shot.
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Take a strong pressure, windowed containment vessel with 3X trip duration life support, voice recorder/stereo, and lights,cameras and cart an observer. Drop this sub over the side and hope for observation of new. After reaching the bottom, a time period is measured and the vessel returns to the surface to be recovered and re-used.

No training is needed, because everything is solidly clockworked, which allows anyone who wants to risk this undersea Everest can. Strap in and enjoy the ride. Your choice of music can be specified as there is no communication once on route. Scientific instruments can be added for a subsidized travel bill.

I imagine this to be extreme fishing for a view of something new at the ocean's edge limit.

Will you bet your life to see something no-one else has seen?

wjt, May 11 2019

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       This would actually be very cool, and I would pay for the experience.   

       To control descent/ascent - have a big cheap iron weight on the bottom, outside the sphere. Inside, you have one of those lever-releasable magnets holding the weight in place. When it's time to come up, twist the lever to release the weight.
MaxwellBuchanan, May 12 2019
  

       If the vessel is strong, the inside doesn't need to be pressurised so there is no limit on the safe speed of ascent?   

       Are there any other risks, e.g. getting tangled in undersea tentacles or lost in a network of twisty caves, or hitting the support vessel on the way up...?
pocmloc, May 13 2019
  

       This would be an ideal activity for D-list "celebrities", reality TV participants, and politicians, who would thereby have the opportunity to publically demonstrate exactly how low they can sink.
8th of 7, May 13 2019
  

       //any other risks//   

       Unluckily getting stuck in the mud as the bottom is unknown. A de-acceleration and good footing might be needed.   

       Also there's the real risk that it could be the most boring trip ever.
wjt, May 13 2019
  

       No, there isn't. Not as long as the Bedford-St.Pancras rail service exists.
8th of 7, May 13 2019
  

       //deceleration...//
IIRC, the older deep-sea bathyscaphs etc dangled a long length of heavy chain below them. As chain reaches bottom, its weight it progressively take, so less is pulling the craft down. At some point, neutral buoyancy is reached. Then drop the whole thing to ascend (if you don't mind leaving an expensive length of chain on the sea floor...).
neutrinos_shadow, May 14 2019
  

       So, use cheap heavy chain then!
pocmloc, May 14 2019
  

       //a long length of heavy chain// That is actually a brilliant solution!
MaxwellBuchanan, May 14 2019
  

       Fitting, the old, long, heavy, life encrusted chain could actually form a raft to land on. It would be a colonial stab in the dark.
wjt, May 14 2019
  

       Better yet, the chain's weight could be such that instead of sitting on the sea floor, you float a couple of metres above it - better view.
MaxwellBuchanan, May 14 2019
  

       Blocks of concrete (cheap) strung along an old rope* (cheap).   

       *Unless you know somewhere that pays money for old rope.
8th of 7, May 14 2019
  
      
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