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Find two long strips of balloons that are used to make balloon bunny ears on the stall.
Inflate it, don't overfill it, and tie one end of the two balloons together, attach it, and fix it to one end of a thin rod, which is about two-thirds the length of the balloon.
Then find a three-pronged tube with two ports connected to the free ends of the two balloons, and the other port to keep the one to pump (a stethoscope is recommended).
Secure this tri-pronged tube to the other end of the thin bar.
In this way, when you inflate, the balloon inflates, but because the thin rod is fixed, the distance between the two ends is the same, and you can only squeeze it out on both sides, and there is a hole in the middle.
It is recommended to lay a plane behind it (you can shield the thin rod behind the plane, only the balloon is in front, visible) and the balloon will not move.
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Find two long balloons that you can buy at a stall.
Inflate well, don't overfill it, and then tie one end of the two balloons up and fix it on the paper board with double-sided tape first. Glue the inside of the 2 balloons with clear tape (to be firm).
Then find a three-pronged tube with two ports connected to the free ends of the two balloons, and the other port to keep the one to pump (the three-pronged tube from the chemistry lab is recommended).
Secure this tri-pronged tube to the other end of the thin bar.
So, when you inflate, the balloon inflats, but because the tape is fixed, the distance between the ends is the same, so you can only squeeze it inside, and the hole in the middle opens.
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Prepare two long strips of balloons.
Inflate it, don't overfill it, and tie one end of the two balloons together, attach it, and fix it to one end of a thin rod, which is about two-thirds the length of the balloon.
Then find a three-pronged tube with two ports connected to the free ends of the two balloons, and the other port to keep the one to pump (a stethoscope is recommended).
Secure this tri-pronged tube to the other end of the thin bar.
In this way, when you inflate, the balloon inflates, but because the thin rod is fixed, the distance between the two ends is the same, and you can only squeeze it out on both sides, and there is a hole in the middle.
It is recommended to lay a plane behind it (you can shield the thin rod behind the plane, only the balloon is in front, visible) and the balloon will not move.
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Pore model is a model in the field of materials science that represents the porous properties of materials. The model treats the material as a porous body composed of many pores, and characterizes the state bases such as porosity, pore size distribution, pore wall thickness, pore shape, and pore connectivity.
The porosity model is mainly used to study the adsorption properties, mass transfer properties, mechanical properties and acoustic properties of materials. For porous materials, the stomatal model focuses on factors such as pore formation, pore distribution, and pore wall thickness to explain the properties of the material.
When working with a stomatal model, model parameters such as pore size, porosity, and pore connectivity need to be selected appropriately. At the same time, a variety of experimental methods are used as much as possible to verify and modify the established model to ensure its accuracy and reliability.
In conclusion, the stomatal model is a physical model to understand and describe the internal structure and pore properties of solid materials, which can provide an important reference and guidance for us to study the various properties of materials.
Handmade model toys for daily necessities.
If you want to learn systematically, you can consider signing up for a live online class, and recommend CGWANG's online class. The teacher speaks carefully, you can watch it back after the class, and there are also the same type of recorded classes that you can learn for free (give away lifelong VIP). >>>More
What materials is the landlord going to use to make it?
The wooden one is relatively simple, find some wooden keels, or wooden edge strips (generally square), simply find a chair, draw a drawing, of course, you need to have the right tools, such as a small saw, a small carving knife or something, easy to punch, slotting. >>>More
If you want to learn systematically, you can consider signing up for a live online class, and recommend CGWANG's online class. The teacher speaks carefully, you can watch it back after the class, and there are also the same type of recorded classes that you can learn for free (give away lifelong VIP). >>>More
If you want to learn systematically, you can consider signing up for a live online class, and recommend CGWANG's online class. The teacher speaks carefully, you can watch it back after the class, and there are also the same type of recorded classes that you can learn for free (give away lifelong VIP). >>>More