Comentarii la: Navigarea direct în vânt – Este posibil?

De: @henrymilne9461

@henrymilne9461 — Tue, 09 Jan 2024 23:37:40 +0000

lil, jump scare with the sail boat there haha

De: @Brian_Patrick

@Brian_Patrick — Tue, 09 Jan 2024 23:35:32 +0000

Catamarans don't like having a central rudder; it will be a lot more effective if you put it on one of the hulls (or better yet, put one on each hull).

De: @MaloRichard

@MaloRichard — Tue, 09 Jan 2024 23:32:04 +0000

Hey you should get inspired by water world movie use a vertical axis wind turbine. So it can work on any wind direction. Also using rotation sail drive (type of propeller mount) will be more efficient for turning the boat than the rudder, but probably losing some energy in the gear system.

De: @user-lw6sp5pk1y

@user-lw6sp5pk1y — Tue, 09 Jan 2024 23:29:39 +0000

Im really surprised you didnt think of gear reduction.
Increased prop speed per same amount of wind turbine speed.

De: @COW879

@COW879 — Tue, 09 Jan 2024 23:28:46 +0000

1 like = 1 thanks to Daniel for recharging your creative batteries

De: @henryleydon2775

@henryleydon2775 — Tue, 09 Jan 2024 23:24:47 +0000

Veritasium would like to know your location

De: @greg6126

@greg6126 — Tue, 09 Jan 2024 23:24:01 +0000

It's not a windmill if it doesn't make flour.

De: @nanaki-seto

@nanaki-seto — Tue, 09 Jan 2024 23:23:54 +0000

Yawn paddle wheel and duplicate the black bird wheeled vehicle but for water use come on man how could you NOT see this? hehehe

De: @meateaw

@meateaw — Tue, 09 Jan 2024 23:23:32 +0000

The DDWFTTW car isn't ... powering the vehicle by its wheels.

The wheels are transferring energy that has been applied to the vehicle (motion) and pushing the propeller blades.

The propeller blades are in effect making the wind "hit" a slower moving object. (Think about what the wind impacts from the perspective of a 2d line in the direction of the wind. The propeller is angled, and when the leading edge enters the vector, it then "gets closer" to the wind as the propeller passes it, in conjunction with the motion of the vehicle this means the wind "hits" a slower moving object).

Ultimately the DDWFTTW vehicle is fully driven by being "pushed" by the wind. The wheels transfer some of its forward momentum into the blades, the blades then present a "slower" surface to the wind.

So when the Blackbird is travelling at wind speed, it still gains momentum because the surface of the propellers is travelling "slower" than wind speed (due to its rotation).

De: @kihgu

@kihgu — Tue, 09 Jan 2024 23:20:44 +0000

I Wonder if you can pitch the blades to mimic throtle