Windmill fantail

Multi tool use
For other uses, see Fantail (disambiguation).

Danish Smock mill from 1895 at Sønderho, Fanø, with fantail
A fantail is a small windmill mounted at right angles to the sails, at the rear of the windmill, and which turns the cap automatically to bring it into the wind. The fantail was patented in 1745 by Edmund Lee, a blacksmith working at Brockmill Forge near Wigan, England, and perfected on mills around Leeds and Hull towards the end of the 18th century. Fantails are found on all types of traditional windmills and are especially useful where changes in wind direction are frequent. They are more common in England, Denmark and Germany than in other parts of Europe, and are little-known on windmills elsewhere except where English millwrighting traditions were in evidence.
The rotating fantail turns the cap of the windmill via a system of gearing to a toothed rack around the top of the mill tower, or to wheels running on the ground in the case of a post mill. It does so until the fantail sails are orientated parallel to the wind, whereby the wind can no longer move them. When the fantail is orientated parallel to the wind, the main sails are in the optimal perpendicular orientation and produce maximum power.
[1]
References
^ Fantail | windmill | Britannica.com
Britannica.com › technology › fantail-wi...
External links
Shipley Windmill, West Sussex.
J8,09aR92CQFA pikD8yrMqMpMgEf2WAJ,6SJA61eT
這個網誌中的熱門文章
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
0
I'm trying to build a Chat app UI, the idea of the Layout was pretty simple: When the input bar is focused, keyboard show up and "push" up the chat bar, as it's a grid, the ListView will resize to fit the screen: I update the input bar's margin to "push" it up: NSValue result = (NSValue)args.Notification.UserInfo.ObjectForKey(new NSString(UIKeyboard.FrameEndUserInfoKey)); CGSize keyboardSize = result.RectangleFValue.Size; if (Element != null){ Element.Margin = new Thickness(0, 0, 0,keyboardSize.Height); //push the entry up to keyboard height when keyboard is activated } And this is ...
.everyoneloves__top-leaderboard:empty,.everyoneloves__mid-leaderboard:empty,.everyoneloves__bot-mid-leaderboard:empty{ height:90px;width:728px;box-sizing:border-box;
}
2
Can someone explain to me how to implement the post-redirect-get pattern in Spring WebFlux and Thymeleaf? What subscribes on the database save method? @GetMapping("/register") public String showRegisterForm(Model model) { model.addAttribute("user", new User()); return "register"; } @PostMapping public String processRegisterForm(@Valid User user, BindingResult bindingResult) { if (bindingResult.hasErrors()) { return "register"; } else { userRepository.save(user); //what subscribes on this? //how to redirect on e.g. "/login"? ...
-2
I am building a railway station model. I want a train to depart when I click a button. I want to call stopDelay() for that but I am not sure how to do that and from which place.
anylogic
share | improve this question
asked Nov 23 '18 at 10:12
Anupam Singh Anupam Singh
1
Hi Anupam, welcome to SOF. Please check how to ask good questions, see link below. Your question is...