General Discussion

Ilsa

(64,078 posts)

54. Sailboats don't head directly into the wind, but tack at angles,

Thu May 31, 2018, 06:10 PM

May 2018

trying to get pointed as "high" towards the wind direction as possible. The higher they get, the closer they come to stalling.

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This Man One Ups Tesla By Inventing An Electric Car That Never Needs Charging [View all] mfcorey1 May 2018 OP

The very last thing I am is a scientist, but I've never understood why a car can't generate its own Vinca May 2018 #1

Why Be Logical? dlk May 2018 #2

conservation of energy Locrian May 2018 #4

Thanks for pointing that out, Locrian. I'm a little surprise how few people seem aware of Newton's Nitram May 2018 #16

The three laws of thermodynamics Xipe Totec May 2018 #5

My sarcasm meter might be broken genxlib May 2018 #6

Well, yuck, yuck, yuck, yuck, yuck. Vinca May 2018 #23

Irregardless genxlib May 2018 #26

That system just captures a bit of lost energy. Codeine May 2018 #34

Patents are not what you think they are VMA131Marine May 2018 #58

Thats what a hybrid does d_r May 2018 #7

The term is "resistance." For instance, it takes energy for electricity to move through a wire. 3Hotdogs May 2018 #8

8th grade science, dude. Codeine May 2018 #12

Um, Vinca, it's the wind that turns WINDmills. Are you suggesting we put sails on cars? Nitram May 2018 #14

I like that idea! But then to move a 4,000 car up a hill would take a pretty big sail. Canoe52 May 2018 #31

Hmmmm. . . Codeine May 2018 #35

Not to mention, you couldn't go into the wind. Nitram May 2018 #40

Believe it or not, it is possible.... hunter May 2018 #42

Very interesting. Nitram May 2018 #44

If it can be done with a turbine it can probably be done with sails too. hunter May 2018 #46

I remember a land lubber leaning against the boom, drink in hand. Nitram Jun 2018 #65

Sailboats don't head directly into the wind, but tack at angles, Ilsa May 2018 #54

My wife is a wind surfer. hunter May 2018 #55

I used to sail. Ilsa Jun 2018 #59

A bird-like flapping and tacking sail boat would probably induce severe sea sickness in most people. hunter Jun 2018 #61

I found that people tended to get sea-sick with the wind behind us and the waves swinging us Nitram Jun 2018 #63

I really learned to sail during my 20 years in Japan. Took my 13-foot dingy out onto Tokyo Bay. Nitram Jun 2018 #62

That's cool. I've been on a big ketch like that. Ilsa Jun 2018 #66

It was the perfect boat out on the Pacific Ocean in big rollers. Nitram Jun 2018 #67

That's right. The best way to put on the brakes is to head directly into the wind and let out the Nitram Jun 2018 #64

Wow - I'm never going to respond to a post like this again. You guys are nasty. Vinca May 2018 #22

Yeah, people can be nasty. demmiblue May 2018 #27

Don't sweat the snarky ones Vinca, they forget that everything is relative Uncle Joe May 2018 #43

Yes that's true, but only if you can do the math. hunter May 2018 #50

Einstein was no Isaac Newton either because Newton WAS a brilliant mathematician, Uncle Joe May 2018 #57

Here you go: Turbineguy May 2018 #53

That's what an alternator does. cemaphonic May 2018 #25

LOL... not possible, would violate the 1st and 2nd law of thermodynamics. InAbLuEsTaTe May 2018 #28

Regerative braking. alfredo May 2018 #29

GM volts act as a generator and charge batteries...it is not a gas engine. Demsrule86 May 2018 #30

WOO-hoo! genxlib May 2018 #3

Ha ha! I forgot about that, is it still up there? KelleyKramer May 2018 #37

It's going to be robbob May 2018 #38

This is bullshit on so, so many levels. DetlefK May 2018 #9

Utter bullshit jberryhill May 2018 #10

I'll get you a deal on a car like this, that's been moving 30 km/sec without gas for years struggle4progress May 2018 #11

Dude is either claiming to have invented a perpetual-motion machine... Orsino May 2018 #13

Collective Evolution. FFS... SidDithers May 2018 #15

I was at BBQ over the weekend and a guy was telling the old story about the carburetor that runs on FSogol May 2018 #17

What Detlef and Berryhill Said ProfessorGAC May 2018 #18

This Just In: Perpetual Motion Still Impossible MineralMan May 2018 #19

One wonders what the OP is doing there. Codeine May 2018 #20

Yes. Sources matter. They matter a lot. MineralMan May 2018 #21

Truth be told, I'm a bit interested in the Truth about Giant Humanoid Skeletons cemaphonic May 2018 #24

Here, you read this and then give me the synopsis ProudLib72 May 2018 #33

My grandfather was a machinist who tried his hand, at the turn of the century, Canoe52 May 2018 #32

My grandfather was always thinking up ways to detect U.F.O.s hunter May 2018 #45

There is a non-BS way of doing this... JHB May 2018 #36

But...(and I ask this sincerely...) robbob May 2018 #39

Why not wind, solar and tidal? NT Adrahil May 2018 #48

And hydro, solar, wind, etc. JHB May 2018 #56

Yes, I am worried about how clean an electric car really is, robbob Jun 2018 #60

This has to happen. Sort of a Blue Rhino like your propane tanks, but for batteries. Adrahil May 2018 #49

That what Tesla wants! That's why Elon Musk placed most of their patents in the Public Domain. TheBlackAdder May 2018 #41

You know regenerative braking is a thing, right? Adrahil May 2018 #47

When I was living in Los Angeles in 1969 Turbineguy May 2018 #51

In the 70s some people believed there was a carburetor patented Hoyt May 2018 #52