The video begins by illustrating that the phenomenon of lift is only possible because air has mass. Somewhere ought to be interesting footage of frustrated birds and insects in an atmosphere with nitrogen replaced by balloon gas. —rwg -------- Original Message -------- Subject: Re: [math-fun] I just rediscovered Alan Adler's old Aerobie aerodynamics tutorial Date: 2017-07-08 03:24 From: Victor Miller <victorsmiller@gmail.com> To: math-fun <math-fun@mailman.xmission.com> Reply-To: math-fun <math-fun@mailman.xmission.com> Yes, I uploaded it. I don't remember where I found it. Victor On Sat, Jul 8, 2017 at 00:50 Bill Gosper <billgosper@gmail.com> wrote:
https://www.youtube.com/watch?v=9Plt04KpoLc (Could the uploader be our own Victor Miller?) Unfortunately, the video quality is low. The high resolution master was discarded by a fly-by-night cassette duplication outfit in Los Angeles. If you find this video boring (as do most?), I think it's because you think you're understanding it, but aren't really. If you're young, come back to it in a couple of years. If you really understand it, it's very interesting. --rwg _________________________________________