btw cargo ships are already incredibly efficient tho.
even if they produce a ton of co2, when divided by actual amount of goods delivered, they are hundreds of times more efficient than trucks
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I was ready to mock this, but the more I look into it the more sense it makes.
From the Wikipedia article linked below:
A rotor ship is a type of ship designed to use the Magnus effect for propulsion. The ship is propelled, at least in part, by large powered vertical rotors, sometimes known as rotor sails. German engineer Anton Flettner was the first to build a ship that attempted to tap this force for propulsion, and ships using his type of rotor are sometimes known as Flettner ships.
https://en.m.wikipedia.org/wiki/Rotor_ship
See also the Magnus effect.
So nice of Magnus to put aside his chess career to help the planet
Not to mention his career as a chaos demon
The guy created LazyTown too, so he's good on my books
What an extremely cool thing to learn! And the gifs on the article are very helpful
I know it's just me, but everytime I hear the expression 'What a time to be alive!', I think of the voice of the host of the Two Minute Papers YouTube channel.
Edit: I thought it was just me, but it wasn't just me
Isn't it like 20% fuel reduction only? Not insignificant
There are lots of grand claims for the potential of wind assist on ships, but I suspect they're based on idealized physics and best cases. Actual results seem to be less impressive https://www.ics-shipping.org/news-item/potential-of-wind-assisted-propulsion-hindered-by-perception-and-funding-challenges/
They claim 5-10% fuel savings, which is decent, but not earth shattering. Pyxis, which started operation in August with two big wing-sails, is likely to be the best current practical evidence, but I haven't been able to find any results online. Speculation that it might reduce fuel consumption by 3 tons/day, which is about what you could get just by slow steaming.
Do cargo ships go under bridges?
Many do not. Few bridges cross major harbor entrances.
But I've also seen this concept before. The sails retract. If you look closely you can see how they're segmented.
Boats with sails?? Blasphemy!! How are they going to stop when they get to the edge??? Argh,me and me mateys need fossil fuels..mo mercury mo problems, ya heard?

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