This is one of the most fantastic lectures on metrology that I have ever heard in my life.

What a brilliant teacher you are! Best lecture, vast knowledge, thank you very much.

Man I do like G's lectures. Really good guy to talk to as well

Oh nice lecture!! Really good stuff! I kinda knew the basics.....but some really well explained points about the rotor areas atop the associated CU cloud formations.....Well Done!!

Easily the best lecture I've seen on the topic, thanks G! And thanks David for uploading :)

I wish i could teach as well as this, Very good lecture G manages to get the message over as if your sat in the glider, I got my diamond at Portmoak on what must of been an easy day in 2003 , `Have not achieved much in wave since, I now understand a lot more about what's actually going on ,specially the bit about the rotor. Thankyou Richard Chaman

Excellent lecture, have enjoyed it. Thank you.

Great info from a man with obvious experience...Thanks

Somehow this never gets old. I like to revisit this from time to time to refresh my understanding of wave systems and check my experiences against the theory.

This is a brilliant lecture thanks!

Great vid, some useful stuff for us paragliding pilots as well

Really informative video, thanks for sharing!

really great video! it seems like a great interdiction to wave flying for myself. Do you have suggestions to other material video or books for novice pilots that can occasionally work waves? thanks again

Great Lecture

that jumper with the wave diagram looks cool

Thanks for sharing ^_^

Excellent job - would love to fly with you.

1:50-3:53 nice explanation of adiabatic ascent of air masses

Use Bernoulli's equation, a method of fluid mechanics.

Invisibility is not an easy thing to explain.

Hang on. The thesis here is because when air rises it cools (fair enough, we know it does) it will then be *colder* than the air already at that height (whatever that height is). Why should it be? The other air is at the same height. Is one mass of air wetter or drier than the other?

yeah

16:00 ...No Rotor?????????????

you complex things

so not quite trillions of tons of air over a mountain