(I can't believe I've been using Khan academy for almost 20 years!!) As someone who has adored your products and recommended your resources to hundreds of people over the years, I constantly find myself returning when I'm trying to learn something new. I've noticed you have a few aviation related items, but I think it would be awesome if you expanded into videos like how High Bypass Turbo Engines work, or Bernoulli's principal in terms of flight, not just fluids, pretty much anything aircraft/aviation would be so cool to break down into easier to digest mechanics. Thanks for everything you do! 💛