Half a croissant, on a plate, with a sign in front of it saying '50c'
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Boat shoes

Shoes that are inflatable rafts
  [vote for,

Shoes should be inflatable rafts buoyant enough to keep you in the water if you can balance.
chronological, Jan 14 2021


       Presumably, each shoe is about half a coracle in volume. Will you be sporting a punt pole or two dinky outboard motors? (You realise walking's not going to fly - unless you're Jesus H Christ, and he hasn't posted here for ages).
pertinax, Jan 14 2021

       Rafts is good I think. You don't need to have the centre of mass of the combined human + shoes be below the centre of bouyancy; you just need the centre of buoyancy to move outboard of the centre of mass as you start to tip over, and a raft does this pretty well up to a certain angle of list at which point you flip upside-down and cannot recover.   

       How big do the rafts need to be? Well if you weigh 70kg and the shoes weigh 10kg you need to displace 80l of water. There is a general question of raft stability, but for the sake of argument let us say that the raft should not sink more than half its thickness, so a raft 20cm thick x 80cm wide x 1m long should be sufficient. You need two of these if you are to have any chance of "walking" by lifting one foot and shoe clear of the water. There is an inherent stability problem of having them side by side but it should be possible to make the two rafts interlock. If one of the rafts is E shaped and the other is 3 shaped (like a wind up walking figure) then it should be possible to take steps while remaining perfectly balanced and afloat. Naturally the cutouts of the raft will increase its overall length and/or width.   

       Further, a raft that is shaped as described above and is sized as above might have a surface area of (1 x 0.8 x 2) + (1 + 1 + 0.8 + 0.8 + say 2 for the cutouts) = approx 8 m^2 which at a weight of 250g per m^2 would weigh 2kg so my estimate above is too big. That's OK. You can carry a backpack full of pork pies and champagne without sinking. Anyway my point was that you have 8 m^2 of inflatable fabric that you can fold up and stow away inside a compartment of your platform shoes. They might be a little tall.
pocmloc, Jan 14 2021

       I'll send my bill for "idea details service" to the usual address. Usual 30 days terms.
pocmloc, Jan 14 2021

       This was pretty much Baked in the 1970's, but using expanded polystyrene floats, and two inverted buckets as "ski poles".   

       Probably not WKTE, but [marked-for-deletion], not an innovation.
8th of 7, Jan 14 2021

       // Where’s beanangel when you need him? //   

       Struggling with page two of "Janet and John Learn About Peptides", why ?
8th of 7, Jan 14 2021

       If one is being towed behind a boat at sufficient speed, all shoes become boat shoes.
sninctown, Jan 14 2021

       Yeah! Learning about biology and shit, who needs that!? I, for one, have a breathtaking depth and breadth of knowledge in modifying a 20 year old computer game. When the aliens come and offer unlimited resources if we can get their load order right I'll be a hero!
Voice, Jan 14 2021

       // Learning about biology and shit, who needs that!? //   

       "Give me an education in electronics or I'll kill your family. " — Voice, Jan 06 2021   

       We detect a smidgen of inconsistency ...   

       But you're quite right about the aliens and the video game.
8th of 7, Jan 15 2021


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