Name: KX1917 graffiti balance eagle
Item no: KX1917
Size: eagle 200*90*35mm The rod 6 * 135 mm Bottom: 57 * 3 mm
Weight: about 45g
Material: wood, magnet and eyes
Packing: 600 PCS
Rules: 600 * 450 * 550 mm
1 balance eagle
The balance eagle, also known as the balance eagle or pyramid balance eagle, is a plastic pendant that actually works in much the same way as a tumbler.
2 the principle of
First, the eagle body is plastic, and the old eagle beak part contains iron block, so the old eagle beak part of the overall weight is relatively large, the spire has a small groove, while supporting the eagle body, while adapting to the eagle beak slide.
2. The eagle's two symmetrical wings spread forward and its tail tilted backward make its physical center of gravity focus on its beak at a certain Angle.
Three, under the action of gravity and the lever principle, we put the top groove center as a strong point, due to the protection and distance of the center of gravity is very close, such protection and center of gravity of the arm is very small, the length of the lever will not is beyond the scope of groove support, support at the top can be fully support and leverage force, gravity so gently move the eagle, the eagle is like a \"daruma\" at the top of the tower jiggle sticktite, until completely still. (note: the eagle's beak is both the center of gravity and the supporting contact point, but the two points are not exactly at the same point.)
A toy that rests on a finger with a bird's beak. No matter where you put the bird (place it or place it on your finger), it will remain stable and stable. Fly like a real bird.
The balance bird is balanced only because the actual center of gravity of the whole bird is below the point of the beak. Although it looks like the bird is in the air, the actual weight of the bird's wings is very light, and the weight of the bird's body is still on the fingers. As shown in the figure, the fulcrum of the finger is point B, and the center of gravity of the bird is point A, just like A basket hanging on the finger, the bird can be held firmly.
