121–130 of 1001 posts
My 11yo son asked me why they did not connect a buoy to the submarine with a string. Lol
don't they do this with crab pots? i'm not sure how far those go down though.
Looks like at most, about half a mile: https://en.wikipedia.org/wiki/Alaskan_king_crab_fishing#Equi...
My 11yo son asked me why they did not connect a buoy to the submarine with a string. Lol
Do the math exercise with him for how much volume 2 miles of string takes up
A spool 20 feet wide has a circumference of ~60 feet, and 3 miles of cable is ~15,000 feet, so 250 loops around the spool. Seems doable.
Stupid question, perhaps: was/it possible for this sub to have any kind of beaconing or communication system that works at depth? It seems like one of this first things I'd investigate before deciding to build a sub.
They obviously didn't do this. They previously lost the sub for five hours. Why this doesn't have an emergency buoy, or an locator beacon that works when the ship surfaces, I don't know.
Earlier quoted context omitted.
"BBC iPlayer only works in the UK. Sorry, it’s due to rights issues".
Note that the BBC is funded primarily by what's known as a "TV License"[0] in the UK - I think it's entirely possible they could probably increase ads or something for international viewers but understand why it isn't their area of focus [0] https://www.bbc.com/aboutthebbc/governance/licencefee
Well, as 'TV Licence', since that's the spelling of the noun outside the US ;)
Earlier quoted context omitted.
There is no point in allowing the door to be opened underwater since it doesn't have an airlock.
No one is proposing a literal "suicide door". But it makes sense to have it openable after surfacing, at least for emergencies.
> According to the BBC, the entire sub is bolted shut from the outside, so even if the vessel surfaces, the occupants cannot escape without outside assistance and could suffocate within the capsule. Why is the submarine bolted shut from the outside?
It makes no sense as the pressure would prevent you from opening it from the inside anyway until you are back on the surface.
The US Navy uses an Xbox 360 controller in active service [0] Mass market has a lot of R&D to leverage so it makes sense. Nothing to say this is the cause of the fault and probably going to be more reliable than something hand rolled. [0] https://www.theverge.com/2017/9/19/16333376/us-navy-military...
The controller itself is probably reliable enough, like any cheap keyboard on amazon. I wouldn't want my life to rely on bluetooth though.