After the "double reduction" policy, everyone was a little overwhelmed and anxious.
Today Xiaoyou wants to give you a little mood, so let's teach you how to play paper airplanes with high quality.
01
Play with the logic behind paper airplanes
The essence of steam that rises abroad is to show a phenomenon to children, so that children can discover and think about the principles and knowledge behind the phenomenon.
In Xiaoyou's view, while teaching children to play paper airplanes, at least 3 questions can be extended to children:
Why can planes fly?
Will there be a difference in the flight time of paper airplanes with different folding methods?
According to the principle of flight, what new tricks can we play?
Finding problems in play and finding ways to solve them is the essence of playing school!
(The world's largest paper airplane)
02
Why airplanes can fly
Do you understand the principle?
But boring to tell the child the principle, they may not be able to understand, use experiments to explain, the child can have a real understanding.
A foreign blogger draws a picture of how the air flow changes as the aircraft wings fly on paper.
Then the blogger made a simulated airplane wing out of paper:
Insert a short straw at about 1/3 of the width of the paper and secure it with tape
The straw needs to be inserted obliquely, not vertically
Arrange the tail wings of the aircraft
Take out a woolen wire, a section of the object wrapped around a high place, and the other end through the straw of the "flying machine".
Finally, we can start experimenting with our children, simulating the direction of the wind as the plane flies.
You can see that when the hair dryer is lifted up, the height of the aircraft actually rises.
This is the principle described earlier: the air flowing through the upper surface of the wing is lower than the air pressure flowing through the lower surface, and the aircraft thus obtains lift.
03
How much difference can be made between different aircraft
Planes fold in thousands of ways, but the flight time is completely different.
Have you ever counted what kind of paper airplanes can fly the farthest? (We'll reveal you later)
It's a very interesting topic, involving the design principles of airplanes, and we can try to explore it with children.
The small tour shows you 5 kinds of paper airplanes that can fly far.
Among them is the farthest paper airplane in the world, guess which one?
1. Susan paper airplane
Don't look at the shape of this aircraft without any characteristics, but it is the world record holder in the aircraft industry!
The production process goes like this:
2. Galactic Fighter
This paper airplane is designed to imitate the shape of a real fighter, and the streamlined fuselage design can make the aircraft more stable when flying.
I didn't find the picture tutorial at once, see the tutorial video below for the specific folding method.
3. "Cow nose" aircraft
"Cow nose" is a sturdy paper airplane,
Unlike the previous 2 paper airplanes, we'll see that its front section is flat, which means it can withstand more collisions without damage.
The paper airplane in front of it will damage the head of the paper airplane after many collisions, but this one is relatively more fun.
4. Glider
The biggest differences between a real-life glider and an airplane are:
The aircraft is powered by engines, while gliders are powered by aerodynamics on the wings to maintain free flight in the air.
The tutorial is as follows:
5. Hang glider
The production process is as follows:
The video tutorial of these 5 paper airplanes I have sorted out for everyone ↓↓↓
Video loading...
After reading these 5 kinds of paper airplanes, I believe you all know which one is the paper airplane with the longest flight distance, right?
The small tour is so obvious that you have no reason not to guess it.
That was the first Susan paper airplane.
The current world record is 69 meters, and this paper airplane was folded by an amateur of the ashes class named John Collins.
John Collins has worked on paper airplanes for over 40 years. In 2012, he broke the Guinness Book of World Records when he designed a paper airplane that flew more than 69 meters.
He still holds this world record.
Don't look at the paper airplane, this record is still unbroken to this day, it must be its law.
Collins himself has said that building paper airplanes that can fly far absolutely requires the help of science:
The glide ratios (the ratio of the distance to glide to the starting altitude without any power), the center of gravity, the center of lift (the joint force of the lift), the boundary layer, and the Magnus effect (the force on an object rotating in a fluid) are all factors to consider.
In addition, he also integrated the art of folding paper into paper airplanes.
If you want to learn Collins' paper airplane technique, you can go and check out his book, but it's a bit expensive.
I also put together more paper airplane video tutorials for you, and the way to get it will be put at the end of the article.
04
What else can paper airplanes do
As we said in the previous section, a paper airplane with different structures can affect its flight time and can even affect the flight trajectory of a paper airplane.
Do you think paper airplanes can only fly forward? Of course not.
1. Paper airplane that will levitate
You may have seen similar videos, but why do you fold yourself and always fail?
Probably because you guys haven't mastered the following 3 secrets.
The material of the aircraft should be light enough
The weight of the nose of the aircraft was not well controlled
The wing section is to be done
To make a suspension paper airplane, we have to choose foam paper to do, because foam paper is light enough.
In addition, the part of the nose should be taped, because the tape can control the overall weight of the aircraft.
If you throw the plane out and it is suddenly rooted to the ground, it means that the head of the plane is heavy.
If the aircraft thrown out is a wavy flight instructions the nose is light, you need to add some tape.
And finally! The tail of the plane has to be folded upwards so that it produces a lift.
2. Paper airplane that will bend
Another paper airplane that you can't learn with your eyes?
No! No! No!
This is a real paper airplane, not a post-effect. You just need to follow the tutorial paper airplane to play.
Even this one is simpler than the above, but one trick point is that when you lose it, you need to lose it laterally.
The detailed folding method will be put into the network disk resources together, absolutely 100% successful.
3. Paper airplane that will flip
The last one may be a little superorganic because its "making" process is a bit complicated.
This aircraft would perform a 180° flip in the air before returning to our hands.
Do you dare to challenge this seemingly impossible plane? I put it on the net disk together.
Finally, a digression, airplane master John Collins is not a professional paper airplane.
His former career was television producer and director, but his interest in paper airplanes has never been extinguished since he was a child.
What can playing with paper airplanes bring to children in the future?
Maybe he'll fall in love with airplane design and end up being a professional aircraft designer.
Maybe he'll fall in love with mechanical design, maybe end up being a military junkie.
Of course, maybe in the end his future has nothing to do with airplanes.
But our parents' responsibility is to give their children more possibilities like flying paper airplanes.
The above is the paper airplane that Xiaoyou wants to give you today, and I hope you will like the content of this issue.
Want to get today's footage?
Naughty, give everyone a small task, move a small hand to help me like, like 30, I will put out the network disk link in the comment area.