good morning (afternoon or night) guys, today I had an idea to make something really cool, a newton pendulum, it doesn't do as well what the real pendulum does, this is more like a very detailed replica of the real pendulum, below will be what is a newton pendulum.
note: this description is a little long, but not that long XD

The Newton's pendulum

Newton's pendulum or Newton's cradle is a device named after the physicist Sir Isaac Newton for empirically demonstrating the conservation of momentum and energy, physical laws studied and demonstrated by Newton.

Description and purpose

It is constructed from a series of pendulums (usually 5) adjacent to each other. Each pendulum is attached to a frame by two ropes of equal length and opposite angles formed between them. If these strings were not equal in length, the balls would be unbalanced. This string arrangement constrains the pendulum's movements to the same plane.

The pendulum's behavior is due to the conservation of momentum and energy only in the case of two pendulums. In fact, if there are n pendulums there are also n unknown velocities to be calculated from the initial conditions. Another condition for the observed result is that an impact wave must propagate free of dispersion through the chain of balls.

The principle demonstrated by the device, the law of impact between bodies, was first shown by the French physicist Abbé Mariotte in the 17th century. [1][2] Sir Isaac Newton recognized the work of Mariotte, among others, in his Philosophiae Naturalis Principia Mathematica.

operation

When one of the end balls (“the first one”) is pulled aside, a string is attached to the ball to perform an upward arc. When released, it hits a second sphere and practically stops. The ball at the far end acquires most of the speed of the first ball and swings in an arc almost as high as the launch height of the first ball. This shows that the last sphere receives most of the energy and impulse from the first sphere. The impact produces a compaction wave that propagates through the intermediate spheres. Any efficient elastic material like steel does this, since the kinetic energy is temporarily stored as potential energy in the material's compression, by reducing the loss in the form of heat. There are small movements in every sphere after the initial strike, but the last sphere receives most of the initial energy from the first sphere's impact. When two, or three, spheres are thrown, just as spheres on the opposite side are thrown out. Some say that this behavior demonstrates the conservation of linear momentum and kinetic energy in elastic collisions. However, if the spheres behave as described above with the same mass and having the same velocity before and after collisions, then any function of mass and velocity is conserved in this type of event.

physical explanation

Newton's pendulum can be modeled quite accurately with simple mathematical equations, with the assumption that spheres always collide in pairs. If a sphere hits four stationary spheres that are already in contact, these simple equations cannot explain the resulting motions in all five spheres, which are not due to friction losses. For example, in a true Newton pendulum, the fourth sphere has some slight movement and the first sphere has a little reverse movement. All animations in this article show an idealized action (simple solution), which only occurs if the spheres are not touching initially and just collide in pairs.
source: wikipedia

in the photo below is proof that this pendulum uses real wires

and below will be the photo of the real pendulum

it's so cool to see these balls hitting each other XD

Have Fun