Earlier quoted context omitted.
Really? Go into the next HN thread and see how many deeply nested comments you can make sense of by looking only at their parent.
You are not doing HN right if you are only reading the parent
'Underwater bicycle' propels swimmers forward at superhuman speed
271–280 of 285 posts
Re: 'Underwater bicycle' propels swimmers forward at superhuman speed
#272Earlier quoted context omitted.
You are not doing HN right if you are only reading the parent
Yeah, you both seem to agree. The larger context matters.
> And everything is always in exactly one easily defined context, right? So for a comment reply we already know the full context just by looking at its immediate parent. That's how nested replies work, right?
noncoml:
> Yes..?
But somehow, also noncoml:
> You are not doing HN right if you are only reading the parent
I give up.
Re: 'Underwater bicycle' propels swimmers forward at superhuman speed
#273Earlier quoted context omitted.
Apparently! I did not expect such a nice find after asking search engine this: https://ieeexplore.ieee.org/stamp/stamp.jsp?arnumber=1700041 > There are two main types of single-wheeled vehicles. In a unicycle, the rider sits above the wheel. These vehicles are recognizable by most people. Less well known is the monocycle, where the rider sits inside the wheel.
yeah likewise the dicycle has two big wheels side by side haha
Re: 'Underwater bicycle' propels swimmers forward at superhuman speed
#274Re: 'Underwater bicycle' propels swimmers forward at superhuman speed
#275Earlier quoted context omitted.
Yeah I think for most uses I would still prefer fins for their agility. Cool idea though, and we probably haven't seen peak efficiency here.
Peak efficiency probably looks like this: https://newatlas.com/marine/jetcycle-hydrofoil-pedal-bike/
Re: 'Underwater bicycle' propels swimmers forward at superhuman speed
#276> The nominal mode enables motion through the water at 3.6 km/h, and for speed-seekers, the SEABIKE can reach a maximum of 7.9 km/h – much faster than normal swimming speeds or even flipper-assisted swimming. https://www.nauticexpo.com/prod/seabike/product-68606-564117... Pretty fast, but "superhuman"? For short distances Michael Phelps can swim faster :)
For short distances Usain Bolt can run faster than most people can cycle.
Re: 'Underwater bicycle' propels swimmers forward at superhuman speed
#277> The nominal mode enables motion through the water at 3.6 km/h, and for speed-seekers, the SEABIKE can reach a maximum of 7.9 km/h – much faster than normal swimming speeds or even flipper-assisted swimming. https://www.nauticexpo.com/prod/seabike/product-68606-564117... Pretty fast, but "superhuman"? For short distances Michael Phelps can swim faster :)
I’m skeptical because the limiting factor for a person using flippers is their lungs, and a propeller is less efficient for propulsion.
Re: 'Underwater bicycle' propels swimmers forward at superhuman speed
#278> The nominal mode enables motion through the water at 3.6 km/h, and for speed-seekers, the SEABIKE can reach a maximum of 7.9 km/h – much faster than normal swimming speeds or even flipper-assisted swimming. https://www.nauticexpo.com/prod/seabike/product-68606-564117... Pretty fast, but "superhuman"? For short distances Michael Phelps can swim faster :)
Imagine how fast Phelps could swim with this!
Re: 'Underwater bicycle' propels swimmers forward at superhuman speed
#279Earlier quoted context omitted.
Some people (myself included) don’t float like this. I try basically every time I get in the water and my legs drift down to just after 45 degrees and then I slip under completely and don’t resurface until I give in and swim back up. People who can float never believe me, but enough have now seen me in the water that I know I’m not “doing it wrong” I just don’t float. The people who’ve seen me try it in water always…
Have you tried filling your lungs with as much air as possible?
As another commenter has said, not everyone is able to float and I have tried all “You just have to …” suggestions in this thread. I genuinely do not float.
I’ve got big heavy legs from cycling, squatting and paternal genetics, my torso is a little short for my height and I’m comfortably under 15% body fat with a BMI of 24.
I don’t float.
Re: 'Underwater bicycle' propels swimmers forward at superhuman speed
#280> French company Seabike They have a .fr domain and a showroom in Cannes, France but the company is headquarted in Italy: PARITET SRL, Via Giovanni da Cermenate 3, 22063 Cantù (CO) Italy Also, the French version of the website is riddled with enormous errors, like "For traveling light" translated as "Pour voyager lumière", which does not make any sense and isn't even grammatically correct (the proper translation woul…
That's a really odd mistranslation, given the Italian words for lightweight and light source are as different as in french (leggero/a vs luce). Looks like it was translated directly from the English content.