ZipString - Momentum, Drag, Lift, Gravity & Tension (review)
Channel: Kids Fun Science
Date: 2022-12-10

ZipString Made for parents and teachers
Zipstring review and Zipstring tricks

Where to buy Zip String
https://amzn.to/493gVc1

Science Kits and more
https://elementarysciencen.wixsite.com/sciencekits

Kids Fun Science Online Store 
https://teespring.com/stores/kids-fun-science

My Filming equipment:
Cell Phone Tripod 54 inch Travel Tripod with Bluetooth Remote - https://amzn.to/34REzbB 
Blue Yeti USB Microphone - https://amzn.to/3ePJwGu 
Green screen & lights - https://amzn.to/2XT9Yc1 
Apple iMac 21.5in 2.7GHz Core i5 8GB memory - https://amzn.to/34ZMIe7
iPhone 12 - hhttps://amzn.to/3JZvcKI
iMovie for editing

Zipstring 
Chapters
0:00 Kids Fun Science Intro
0:23 ZipString toy
0:52 Zipstring medium string
1:06 Science behind it
1:42 experiment 1
2:25 Science with Wave speed
2:44 Experiment - 2 waves
3:25 Fiber on string
3:59 Putting on the string
4:24 Waves only on the bottom
440 experiment 3 - Stand string straight up
5:18 Taking out a knot
5:40 Experiment 4 - wrap around 5 glasses
6:00 Experiment 5 - walk through string
6:36 thank you @ZipStringOfficial 
6:39 Zipstring rechargeable batteries 
7:02 If you like this experiment please click THUMBS UP! & SUBSCRIBE
thank you Ken

I got my Zipstring straight from their web site at https://zipstring.com
This is NOT a paid advisement, as I paid for my own. Actually I have bought 5 of them for gifts and probably will buy more.  

This fun physics toy is easy to use and can do many different things with. Please let me know in the comments below what tricks you could do with the zipstring.

It carefully balances several forces of momentum, gravity, drag, lift and tension, and drag to fly the string in the air.  A interesting note, is that the string flies due to lift created by drag as it moves through the air. The string has fiber that come off the string. The more fibers the more drag.

I assume that the more worn the string would fly better than newly made strings. I assume  if you rubbed the new string with sandpaper, little hairs form on the string surface increasing the drag force more, thus allowing for longer loops to lift.

String pushes forward and inertia that keeps it moving forward until it goes back through the wheels to be pushed again.

However, If my basic understanding of physics is correct the string is being pulled through the wheels, not pushed. The resulting dynamics of the string is due to its inertia. I was always lead to believe that the only two pushing forces were gravitational and magnetic. Just the same it is a fun machine that illustrates many properties of physics. Great job Zipstring.

I would not call it pushing the string, it is a case of giving kinetic energy to the elemental string and that element gains momentum and on its own will be projected or shot in the air, as any bullet or small projectile would. The fact that each element is shot as an element and not as a whole centralized mass , that what makes it fly out, but I would not say that it is pushing the other in any way, as once it leaves the circumference of that pulley system , well there is no more pushing, as the gain in speed is done while the string elements are in between the pulleys. Now I would say that the other side each element is pulling the other. 

The wave speed is slower on top then it is on the bottom
bottom string is being pulled by the rollers and increasing tension and the top string is being pushed by the rollers which decreases tension. Also explains why waves don't go all the way around the loop. Don't know why when I move the it back and forth only waves on the bottom and not the top, but its very cool.

Awesome in every way, one of the best physics toys and I have ever seen, for it is science and art and mathematics.

Check out our full review of ZipString, a physical therapy equipment that uses gravity, momentum, and tension to help with rehabilitation.

BC Physical Therapy, are big fans of ZipString. This equipment is used to help with rehabilitation following injuries and surgeries. ZipString uses gravity, momentum, and tension to help with range of motion, muscle strength, and proprioception.

 If you're looking for a way to help with your rehabilitation, be sure to check out ZipString!

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