https://www.youtube.com/watch?v=WbJBMZzh81k&t=41s
The beautiful sand draws a Zen-like line drawing on the sand, is it very charming~
https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_22505834-e86f-4c04-9a2c-2c4224068001.jpg
The traces of the sand pendulum can be seen in the museum. If you observe carefully, the sand pendulum swinging from different angles will draw completely different patterns. This kind of graph is called the Lissajous curve.
It is definitely a very elegant home decoration. Appreciating his rotating pendulum to draw complex and regular patterns, it calms the mind.
https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_c9e22d35-cc21-4eb5-86df-b00d0a3d5f22.jpg
The huge size of beech wood is 134 cm, and the white and delicate quartz sand can be used to draw very perfect and exquisite graphics.
Because the pendulum hangs longer, the frequency of the swing is steady and gentle, which is fascinating.
The movement of the sand pendulum is composed of two orthogonal simple harmonic motions. When the two swing planes do not coincide, the sand pendulum will draw various patterns regularly~!
https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_bb70fd4a-da98-4067-a9c4-ba7caee723cc.jpg
This product is easy to assemble, and it is very easy to store if it is not used for a long time!
Don’t throw away the sleeve with the pendulum attached inside. When you want to smooth the sand, you can pile the sand into a pile first, then put the sleeve back on the pendulum and swing it to achieve the effect of smoothing the sand. , Forming a uniform and slightly concave arc surface.
https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_f6bbf340-d7cd-405e-8876-e5bd08781e76.jpg
• Simple harmonic motion and Lissajous curve
The movement of the sand pendulum is composed of two orthogonal simple harmonic oscillations.
The position of the node on the pendulum rope determines the frequency ratio of the two orthogonal simple harmonic oscillations, and the release point of the pendulum determines the initial phase and amplitude of the two orthogonal simple harmonic oscillations.
If the trajectory of the composite motion of two simple harmonic oscillations perpendicular to each other is a stable closed curve, this curve is called the Lissajous curve. The Lissajous curve is mainly used for frequency and phase detection.
See how the super large beech sand pendulum works and draws a beautiful totem.
https://5993.cyberbiz.tw/s/files/5993/ckeditor/pictures/content_dc2d602a-c1ac-488e-b06f-d8a35e4d9e38.jpg
♥ Special instructions for international shipping:
International shipping costs are more complicated, depending on the quantity and region. It is recommended to write to us before placing an order.
Specifications:
► Product size: diameter 46.5cm high 134cm (assembled)
► Packing size: 52cm x 53cm x 9cm
► Material: beech wood, iron plating, quartz sand
► Origin: China
Precautions:
► Please stay away from humid and windy environment.
► This product needs to be assembled by itself
► This product is a DIY product and cannot be returned once it is opened.
Product Description
Product Details
- Material
- Wood
- Where It's Made
- mainland China
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- No.31,661 - Home & Living | No.5,148 - Items for Display
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- 6,975 views
- 3 sold
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- Product Type
- Original Design
- Listing Summary
- Don’t throw away the sleeve with the pendulum attached inside. When you want to smooth the sand, you can pile the sand into a pile first, then put the sleeve back on the pendulum and swing it to achieve the effect of smoothing the sand. , Forming a uniform and slightly concave arc surface.
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