Shulou(Shulou.com)11/24 Report--

The title of the original text: "Rabbit" needs only one move to advance by leaps and bounds, that is. | serious play "

New year is coming, the editor is here to wish you all 🐇 to make great progress.

Hey, someone is going to ask:

Can your rabbit still fly?

That's right,

Today, the editor will show you the flying rabbit.

Experimental equipment

A4 paper, double-sided glue

Experimental process

The first step: the first is the standard operation of taking a square from A4 paper, which can get two parts of a square and a rectangle.

Step 2: fold the square according to the following steps.

Step 3: after folding, the folding edge should be sorted out, so that the circle rolled up will be more round. When it is done, it is rolled into a cylinder and the rabbit's body is done.

Step 4: before making a square, there is still a part of the rectangle left. Separate the rectangle in half to get two pieces of paper.

Step 5: "Rabbit ears" should be tilted up, so you need to roll the note.

Step 6: after rolling up, stick the note on the paper tube with double-sided glue, and the Flying Rabbit will be done!

Step 7: then you can see the "rabbit" flying forward.

In fact, the principle of the flying rabbit is very similar to that of the annular aircraft. it produces lift through the upper and lower arc, and the air flows around the wingtip of the left and right arc to provide directional stability.

The analysis is as follows

The annular wing is compared to the shape of a cylinder. when there is an angle between the cylinder and the air flow, the cylinder deflects the air downward, which can be understood as squeezing the air downward. When the wing squeezes the air downward, according to Newton's third law (the forces act on each other), the air will also apply the opposite force to the annular wing to form a lift.

This article comes from the official account of Wechat: Institute of Physics, Chinese Academy of Sciences (ID:cas-iop), author: Ah Yi & Xiao Pa & iu

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