Cum funcționează de fapt o barcă cu pânze?

34 thoughts on “Cum funcționează de fapt o barcă cu pânze?”

1. Early veritasium videos were basically about making fun of people that don’t understand things that Derek thinks they should. Glad he doesn’t do this kind of thing anymore.

2. Yo bruh physics glitch

3. Back here after the new prop craft episode

4. Would this work in another frame such as the bottom of a long swimming pool that also has a current flowing? Of course the question is would a propeller Contraption like this be able to move faster than the current?

5. who’s here from the Blackbird (wind car) video?

6. So the sailor has to position the beam at a certain angle to the wind.

7. "which way would you point this boat to sail?"
   Me: a who has put hours and hours into Sid Meiers' Pirates! "my moment has come."

8. Here in 2021, wow, look at this young guy!

9. Newton’s 3 law-

10. I didn't realize so many people don't know how sails work. I guess I was lucky. I had a Lutheran priest and his wife that taught me sailing when I was a kid.

11. Bernoulli gentlmen

12. 3:47 is why the Olympian hesitated to answer. trying to explain it like I'm 5. the other dude still blanked out! Awesome!

13. I enjoyed the Calculus, Geometry and Physics lecture. I have found most of the information on the internet is like getting a weather forecast. Everyone repeats what they have heard; no one verifies the facts or even knows what the facts are.
    
    Allow me to ask you a simple physics question; take two round objects the same length and size, both have the same nose cone similar to a jet aircraft.
    
    Object A; starts the gradual curve to the end (tail/stern) point at 50% of the length.
    
    Object B; starts the gradual curve to the end (tail/stern) point at 75% of the length.
    
    Simple Question: which object is faster given everything else is constant; Object A or Object B.
    
    Last question what is making Object A or B slower given everything else is the same (constant)?

14. This 9 year old veritasium video is probably the worst video from this channel…. love all your stuff tho

15. I don't think your sails would be very efficient though…

16. Ahhh yes screw that I'm getting a motor boat then

17. Nothing like being on a screaming broad reach!

18. This will help almost no one

19. The keeling line is ahead of the sails instead of behind the sails. The keel should be under the mast not the boom. Normal keeling is stem to stern keel line. The stem being the deepest point of the hull and the stern is the shallowest point of the hull.

20. A sailboat can sail up to twice the speed of the wind. This is a geometric perfection that is impossible due imperfections in reality. We might say between wind speed and twice wind speed . 1.5 wind speed is a record sailing speed.

21. DIDNT LEARN ANYTHING BUT THE LAST PART WHICH IS … YOU HAVE TO BE AT 90 DEGREES TO GO FASTER 🤦🏽‍♂️

22. Veritasium team, what about creating an improved version of this video? I think it would be nice.

23. Well I already knew this video…. but I've just noticed that Derek from Veritassium has made it…. it's a moment like when I realized that Earl, from My name is Earl was actualy the Chipmunks' father… well very well done Derek….XD fair winds!!!

24. This was a bad explanation!

25. Think of flinging watermelon seeds by squeezing them between your fingers. Which way does the seed go? Well, the sail boat is the seed, the wind is one finger squeezing in one direction and the water against the keel is the other finger squeezing in the other direction. What direction is the sail boat going to go?
    That's the best way I've heard it explained.

26. Curiosity Show explained it better

27. If you did not mention the works of 'keel' in this video, you missed the whole concept dude!

28. Your first video that makes no sense. Please try this topic again?

29. Whit the wind is actually one of the slowest
    Because the sail is only pushing the boat forward instead of pulling it forward

30. Wow! I was amazed how little most people know about how a sailboat works. Maybe other people want to jump in on my explanation but I explain it simply my saying that a sailboat can do more than just go downwind because it has a keel. With a keel the boat is like it is on railroad tracks and does not move sideways. The sail can be used to blow the boat down wind and obviously more and more degrees off of directly downwind because it has a keel. As the wind is 90 degrees off one side the sail can be used as a wing and make lift 90 degrees off the wing surface and move the boat forward and the keel prevents the boat from sliding sideways. Now you could see that this technique could be used to go a few degrees upwind and may a few more degrees and a few more degrees… You can keep doing this to about roughly 45 degrees into the wind. You can not go directly up wind. I hope this helps and is a very simplified explanation of how a sailboat works.

31. It's time to revisit this @veritasium – in navigando veritas

32. Many expected an explanation from Derik but the reason he didn't do that was that guy himself exlplained all and most of them was correct

33. I clicked SO SUBSCRIBE YOU SNARKY 'NERE DO WELL
    FYI..check out this factoid
    BRAIN STIMULUS REDUCES WRINKLES AND INCREASES LIBIDO
    and that's a the FAX

34. that is true for 2 sail boat, but if you do the classic raft boat with just between 2 horizontals?

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