This post embeds a short 7-minute video and links to a longer resource. It is yet another example of how the internet is being used to teach pretty much everything you can think of. What I like is that the images and description are clear. It doesn't hurt to have the current record-holder for paper airplane flight doing the explaining. And there's a lot more that could be instigated from this starting point - why is the suggested design the mist successful? Why does a tube-airplane fly at all? Why does the stunt plane return like a boomerang?
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