<https://www.twinscience.com/en-gb/activity/how-to-make-a-newton-disc/#webpage>
<http://schema.org/description>
"How to make a Newton Disc experiment in 6 easy steps. Here are the simple step-by-step instructions (with videos) to create Newton’s disc experiment."
<https://www.twinscience.com/en-gb/activity/how-to-make-a-newton-disc/>