The Poong Stick ("Whistling Stick")

17,151

135

67

Published

Introduction: The Poong Stick ("Whistling Stick")

About: The answer is lasers, now, what was the question? If you need help, feel free to contact me. Find me on Reddit, Tumblr and Twitter as @KitemanX


This is a neat, and very quick little toy that I first came across on the "Happy Scientist" website.

A couple of minute's work, and you have a toy to keep the kids happy, a fun craft activity, a hook for a fascinating science lesson, and probably the cheapest and quickest at that.



Step 1: Materials and Tools

All you need is a flat, thin piece of wood and something to carve it with.

I have successfully used lollipop sticks, tongue depressors, coffee stirrers and chip forks.

I guess it doesn't have to be wood, but it does need to be fairly rigid.

Step 2: What to Do

The basic poong stick is simple - carve one end to about the thickness of a matchstick.

For your own comfort, carve, scrape or sand the narrow part to a more rounded cross-section.  Corners and sharp edges will cut your thumbs or increase the chance of blisters.

You don't have to stick with the plain, er, stick.  You can carve and shape to your heart's content.

The basic carving takes only a couple of minutes with a decent sharp knife.  I haven't tried, but if you add a sanding bit to your rotary tool, you could probably churn them out in seconds.


Step 3: Safety


OK, I don't really have to warn you about safe use of blades, do I?

But, when you throw a poong stick, it can fly off in unpredictable directions, and it has a narrow, pointy end.

If there are several people using poong sticks at once, you should seriously consider issuing eye protection, especially if you are doing this as a group activity with children.

Step 4: Using the Poong Stick.


Hold the narrow section of the stick between whichever two digits you "click" with when you snap your fingers.  That's probably your middle finger and your thumb.

Snap your fingers to make the stick spin as rapidly as possible, and make a gentle throwing action at the same time - after a little practice, the stick will shoot out of your fingers in an odd, spiralling trajectory, making an odd poong sound as it goes (why do you think I changed the name to "Poong Stick"?).



 

Step 5: The Science Bit


The Poong Stick generates sound as it spins - the air vibrates as it passes over the edges.

You can set your class the task of investigating how to vary the Poong Stick's sound - changing the length and width are obvious, but what about the thickness?  Or how rounded the edges are?

Does a Poong Stick with a varying width give a mixture of notes?  Does the material the stick is made of matter?

How would you measure the sound? 

Could you make a set of Poong Sticks that will play a tune??

Step 6: A Year Later...

...and the school where I recorded that video doesn't exist any more, but the Poong sticks carry on.

I met Martin Raynsford at the Derby Mini Maker Faire 2012, and while I stood there, he drew up and cut a selection of Poong sticks (the middle one lives in my wallet now).

2 People Made This Project!

Recommendations

  • Woodworking Contest

    Woodworking Contest
  • Microcontroller Contest

    Microcontroller Contest
  • Make it Move Contest

    Make it Move Contest
user

We have a be nice policy.
Please be positive and constructive.

Tips

Questions

67 Comments

You're welcome, glad you enjoyed it!

Someone handed out lollies at work today. Guess who had their Instructables leatherman out whittling within minutes.

1 reply

Not at all!

WOW! this is very fun! I used a popsicle stick and it worked! it has a range of noises, from medium high to very low. THANKS KITEMAN!!!!!!

1 reply

You're very welcome!

Awesome! Making one right now. I have the materials in front of me. Could I use an X-acto knife?

5 replies

Of course. Just remember to shave rather than hack.

Awesome! Thanks ;) made one..It's pretty simple but it still makes that awesome sound! Glad you could help me. Maybe a mass-produced version will pop up someday? –Thomas

Should not be too hard to mass produce, just need to get a cutting die made and find someone with a clicker press.
http://www.clickerpress.co.uk/

Ha, imagine a sweat-shop full of kids eating popsicles and then shaving the sticks...

Lol =P Ice cream shops might be strangely crowded after this 'ible...and whats a sweat-shop? Haha...I was at an international Future Problem Solvers competition over the weekend. Met kids from all over the world..England, Singapore, Malaysia, etc. It was in La Crosse, Wisconsin. Way to represent America, FPS. Lol ;) I will tell you what place I get out of the world. I was inly competing against 23 other kids and I got 1st for the State Bowl. I will probably get something good..it will mean I'm the __ best FPSer in the whole world for my age group. Yay! Sorry for the long comment...you probably wouldn't normally listen to an American 12 year old for this long haha jk.

These were used before the computer for sounds effects..

What happens if u attack a string to the end and just spin it around and around

1 reply

I guess it would be a bull-roarer?