turn it is a wooden top whose axis is a woodcase pencil.
The packaging tells me that the design is by Miguel Soeiro and was produced by ESAD.CR and Viarco.
This is a short video showing the top in action. Depending on your browser, it will open inline in a new window, or download as an .mp4 file:
That was with minimal spin. You can get much more “air time” with practice, and the patterns left by the pencil also become quite intriguing:
I’m sure a crafty person could build something like this on their own. Do you like it?
5 Replies to “turn it”
Explanation of rigid body rotation and exercises on top motion would become easier if professors teaching classical mechanics use one of these!
I used to make these when I was about 11. I just shoved a pencil through a wheel from a construction set. Different pencils made different patterns as I remember.
The easiest way to make one of these is to just wedge the point of a golf pencil into the center hole of a steel washer. I used to play with them for hours.
I’m un-lurking after reading this great blog for a long while.
I like the spinning top. But I also have a question: The notebook paper shown in the video looks great. What kind of notebook is it? Does it work well with a fountain pen?
Thanks for a very interesting blog.
Cheers from Norway.
Thank you for all the comments.
Jan, welcome, thank you for your kind comment and for “un-lurking”. It is an A3 sized Rhodia pad with a “dot” pattern that is shown.