History of Newton’s Cradle: Newton's cradle (also known as Newton's balls or Executive Ball Clicker), named after English 17th century scientist Isaac Newton, is a device that demonstrates conservation of momentum and energy using a series of swinging spheres. When one sphere at the end is lifted and released, it strikes the stationary spheres; a force is transmitted through the stationary spheres and pushes the last sphere upward. Newton's Laws of Motion: "For every action there is an equal and opposite re-action." Fine argument of Newton's law of motion and the starting point of physics. Inspired us to better understand the concept of conservation of momentum. Demonstrates Conservation of mechanical energy. Newton Cradle will never be outdated. It’s great for physical teachers, students, office workers, kids, men and women at all ages. Specifications: Size: 5.5x5.1x4.4 in Material: Solid wood+ Fishing line+ Stainless steel balls & structure Occasions: Science Education supplies, Psychotherapy, Stress release, Leisure and entertainment, Birthday present, Holiday gifts, Business gifts Package including: 1x Frame with 5 balls 1x Wooden Base Warm Prompt: 1, When you use this newton’s cradle, please move it in a horizontal line, so the lines will not be tangled. 2, If it was tangled, you could untangle it still with some patience and time, then you will fix it. It’s also a challenge for you, why not have a try?How to untangle it: Firstly, please figure out how the wires were tangled, then follow the wires to untangle it, and you can untangle it in few mins.Warranty:Any problem with our newton's cradle, please contact us firstly, you don't have to return it back, we promise to offer you a free replacement or a full refund immediately.
M**.
Good review!
I have loved this things since my dad got a set when I was still a kid. I bought a set for my science class and they have loved it, too! Easy to assemble. However, a few weeks after I bought them, a student accidentally bumped into the table, the balance balls fell to the ground and got hopelessly tangled! I sent them to our resident detangler and even she couldn't get them untangled. Maybe this year, I'll have them on display all tangled and offer extra credit to anyone that can get them untangled.So, nice little set, decent value for the money, but be careful! The base is lightweight and the can easily fall off a table and enter the land of Forever Tangled.
P**N
Not the original
Very disappointed with this. Not at all what I expected. This is NOT the original one that I wanted. Balls are small so it wont do it like it's suppose to. Balls are not in a straight line. I like collecting the original toys and things like this. But I can't have a collection if I don't have the original items.
A**E
Bought as a gift
Cute idea but twisted up and fell apart after my 10 year old played with it. Needed to throw away. Buy another brand.
I**M
Poor quality. Not recommend.waste of money.
It broke right away
K**T
Grandson loves it
Got this and a graphic novel about Isaac Newton for my grandson. He loves it...keeps it on his desk.
A**R
Its good!
My son loves it
A**R
Good value, looks nice
Good value, and quality piece that functions well. Liked the wooden base instead of plastic. The wire holds up nicely.
S**R
Serves it’s Purpose
Nothing great but they are fine for the money. My kids love them.
D**6
It is what it is
Good quality & fast delivery. No issues
N**J
Broken
Came out the box broken - one very unhappy recipient! Was supposed to be a Christmas Present ...
S**2
Very small (ordered medium) :-/
Ordered the medium one but surprised how small it is :-(
T**Y
Not good
Very poor quality item arrived in a tangle
G**S
looks good
Bought it for husband- he loves it!
A**S
Fun
Fun
D**E
Cheap rubbish
Avoid, cheap rubbish, doesn't align properly so doesn't work properly. Son was very disappointed Christmas day.
A**R
Don't waste your money!
Poor quality - broke 5 mins after getting it!
C**D
A bit crappy really!
Item had clearly been opened already and was broken. Had noce weight to it but check the size because it is small!
B**Y
The geek in me is happy!
So happy with this purchase. I spend so much time putting it into motion and looking at it in motion. Even my young kids are amazed with it. It is fulfilling to see basic physics principles applied in real life. I wished it can be bigger but for the price i paid, this is already a bargain.
C**E
Nice NC
This is a nice NC, it appears to be well made and works wellIt's reasonably sturdy and looks coolEveryone that comes to my home plays with it...
Trustpilot
5 days ago
1 day ago
