mwater Pendulum Wave,Mach Wave:Desktop Decoration for Home, Office, Etc (White)

mesmerizing and seems to be durable

Wonder to watch.

I am pleased with this purchase. It is definitely above my students’ level of understanding but I want to spark curiosity in them and I think this will really intrigue some of them.

Great for those who want to keep a reminder of their choice towards a world discovered through scientific principles, and making the statement with an elegant piece (model) that looks good in your office or home.

Nice demonstration device, nice material, robustly built. Nevertheless the strings were not measured correctly so the oscillation dont return appropriately to the initial state

Watch the video—it is an astounding sight, almost galactic!

I just got this and was completely disappointed when I pulled out the bracket with the 12 steel balls because they were at different lengths.A real Newton's Cradle is the balls all hang at the SAME level so they swing back and forth with the same mass and energy to make the same number of balls at the other end move the same. So, if you pull out 1 ball, 1 ball will move at the other end, if you pull 2 balls, 2 balls will move at the other end, and so on and so on.This also has sides that doesn't allow the balls to swing from side to side.I tried for about an hour to get the balls to be at the same length before I gave up and reread the discription of this which is 100% WRONG for a real Newton's Cradle!

This inexpensive but well-engineered gadget illustrates the principle that, the shorter a pendulum is, the faster it oscillates back and forth. The beam carries 12 weighted ball pendulums hanging at different lengths, so, when you swing them together, they quickly re-form into a wave demonstrating the scientific principle.Although the materials are basically cheap Lucite, fishing line, and metal balls, all the parts are formed and measured with care and easy to assemble. It's best kept out of the reach of children when not actively using it to teach them, but aside from that, should be fairly durable on an upper shelf. It comes in a sturdy box with custom-cut foam padding for safe shipping and storage - don't lose the box if you plan on ever storing it again in the future!