Get smart curated videos delivered to your inbox.   SUBSCRIBE
The Kid Should See This

Parabolas (etc.) by Radiolab + Everynone

A video inspired by the mathematician, Steve Strogatz. At the age of thirteen, Steve was astonished to find that pendulums and water fountains had a strange relationship that had previously been completely hidden from him.

Parabolas (etc.) from Radiolab, which has us running around looking for parabolas everywhere we go. A few comments for the video point out that many of the shapes in the video are not parabolas—”a plane curve which is mirror-symmetrical and is approximately U-shaped”—but are actually catenaries—”the curve that an idealized hanging chain or cable assumes under its own weight when supported only at its ends. The catenary curve has a U-like shape, superficially similar in appearance to a parabolic arch, but it is not a parabola.”

Related exploration: Catenary vs Parabola.

Thanks, @mindfulmimi

Updated video and links.

This Webby award-winning video collection exists to help teachers, librarians, and families spark kid wonder and curiosity. TKSST features smarter, more meaningful content than what's usually served up by YouTube's algorithms, and amplifies the creators who make that content.

Curated, kid-friendly, independently-published. Support this mission by becoming a sustaining member today.

The makers of the SAVE plug-in are no longer supporting it. For site speed and security, I've chosen to discontinue its use. If you have saved videos, please back them up with browser bookmarks, Pinterest, or another page saving tool, before they disappear in May 2021. Thank you.
This video was posted 9 years ago.

Watch more videos about...