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Who Said Kites Rise Highest Against the Wind, Not With It?

2023-04-07 19:10| 来源: 网络整理| 查看: 265

Churchill, Winston S. Winston S. Churchill once said, "Kites rise best against the wind, not with it." This is certainly true of ships at sea. They perform best when moving slowly into the wind, with their head to it. When sailing down a lee shore, they need to be careful not to lose their way as soon as they get a breath of air.

This is because ships have no control over their direction when sailing before the wind. It's easier for them to go back than to turn around. And so they must sail close-hauled, which means that the helm, or steering wheel, would only turn in a circle if you pushed on it hard enough. The more pressure you apply to the wheel, the faster you will make it spin but also the farther it will take you from your original course.

This is why sailors say that ships sail best with the wind abaft the beam (behind them). This angle allows them to balance speed and distance traveled while still giving them control of the ship. Without this advantage, they would be unable to stop where they wanted or go exactly where they wanted.

The word "keel" comes from the Old English cyfel, which means "key" or "lock".

Table of ContentsWho said kites rise highest against the wind, not with it?What is the kite compared to?Why are kites shaped the way they are?Are kites the future of wind power?What helps a kite fly straight up?Do kites go against the wind?What is the kite compared to?

As it dips, dives, and soars, the kite is compared to a ship with a sail! It is called a "kite" because its shape is like that of a kite.

A ship with a sail is able to go in any direction given the wind. So too can a kite surfboard. The rider can face into the wind or away from it as they choose. Some people call this maneuver "dumping the sails." When you dump the sails, you completely remove the tension from the kite string so it hangs loose in the air. This allows you to control where you want to go next.

The kite itself has two main parts: the stick and the foil. The foil is what produces the surface area that catches the wind; it looks like a piece of cloth with tears in it. The stick is what holds up the weight at the end of the line - usually sandbags for beginners or metal rods for more experienced riders. The kite sticks out front, behind the rider's head; it acts as a steering wheel. As the rider turns their body, the stick moves back and forth which causes the kite to dip and dive.

Why are kites shaped the way they are?

Kites are designed and slanted such that air flowing over the top goes quicker than air flowing over the bottom. Daniel Bernoulli, a Swiss mathematician from the 18th century, observed that the pressure of a fluid (such as air) reduces as the fluid accelerates faster. As a result, objects immersed in this fluid will be lifted up.

This effect is used by birds and bats to fly. They have evolved shapes that allow them to generate enough lift with their wings to stay airborne.

The human body is also shaped like it is because of the principle of lift. The more surface area a body part covers, the more likely it is to catch wind and become airborne.

There are two types of kites: those with strings or lines that can break if pulled too hard and those without string or lines that cannot be broken. Flying kites without strings is called "freestyle kites".

In some countries, such as China, Japan, and South Korea, people enjoy flying kites during summer months. In other countries, such as America and Europe, kites are used as recreational devices during holidays, fairs, and festivals.

Today, scientists are still learning new things about kites every year. In fact, they have been used for hundreds of years but they are still popular today.

Are kites the future of wind power?

Kites Could Be the Wind Power of the Future Kite Power Systems, based in the United Kingdom, is working on a method to harness the power of high-altitude winds. The United States just achieved a significant milestone. Renewable energy provided 10% of the nation's power in March. That's more than any other single source.

The country's solar industry has grown exponentially over the last decade, but it still only accounts for about 7% of our energy supply. The main reason why solar technology has not become more widespread is its cost: It's far from competitive with traditional electricity sources like coal and oil. But one company believes it has the answer to this problem: kites. Kite Power Systems was founded in 2010 by David Carroll who came up with the idea while studying engineering at Cambridge University. He realized that there was no way to make wind power economically viable because of the expense of installing wind turbines. So he decided to try something new - kites that can be flown both day and night without stopping production. The kites would float down to Earth where they would be tied together into large bundles called "rafts". These could then be processed into raw material for things like paper and glass or used as fuel for heaters during winter months when electricity prices are high.

Carroll's idea was funded through a government-backed project called "Wind Energy Research Limited" or WERL. The company has since moved out of academia and into commercial operation.

What helps a kite fly straight up?

If there is enough wind, your kite will fly right up. Allow the kite to fly away from you a little before pulling in on the rope as the kite points up to rise. Repeat until your kite reaches the altitude required to find a decent continuous wind.

The more skill you have, the higher and faster your kite will go. There are many different techniques for flying a kite. The two main techniques are freestyle kiting and wave riding.

Freestyle kites are designed for performing tricks. These kites have large front wheels and smaller rear wheels which make them easier to control while jumping or spinning. Wave riding kites have small front wheels and large rear wheels for riding waves. They are harder to steer but are better at holding their position in strong winds.

Kites with larger wings have an advantage over those with smaller wings when it comes to rising into the air. The reason for this is simple: weight matters when lifting yourself and your kite off the ground! So if you can fit more mass onto a single point, you'll be able to get lift off where others cannot. Larger wings also mean longer flights before you need to re-fly or land.

Kites with carbon fiber frames are lighter than those made out of wood or other materials. This means you can carry more of them when flying in strong winds.

Do kites go against the wind?

Fly high against the wind: Kites are fantastic at flying against the wind. They don't sway in the breeze. Despite the fact that air turbulence causes the kite to lose track and drift about, the kite manages to control itself utilizing aerodynamic talents.

Go around a corner: When you turn a corner, your kite will follow since it knows which way is up. However, if you want it to go in another direction, you have to give it instructions to fly in that direction. This can be done by either pulling on the string or giving it a sharp twist.

Get under sailboats: If you're sailing across a lake with a bunch of other people, and one person's kite gets caught in the wind from someone else's kite, it can cause some trouble. The best solution is to have a few people keep an eye out for each other's kites so they can get them down before something happens.

Use more than one: Since kites catch wind from all directions, it makes sense that they would also be able to help each other out if one side got stuck in the wind while the other was floating free. So instead of having one kite do everything, have two or more help out together. This is called "wing-sharing" and it can make sure that no part of the kite is left unsupported when flying high above the ground.



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