Re: [FRIAM] Watch "The Most Important Idea in Physics: The Principle of Least Action - Ask a Spaceman!" on YouTube

2023-07-02 Thread Pieter Steenekamp
Hi Nick, Exercise caution when attempting to grasp the principle of least action, particularly if you desire an intuitive comprehension of it. It is essential to recognize the significance of the principle of least action, as it applies to various areas of physics and could potentially hold a clo

Re: [FRIAM] Watch "The Most Important Idea in Physics: The Principle of Least Action - Ask a Spaceman!" on YouTube

2023-07-02 Thread Stephen Guerin
The Action is the integral of the Lagrangian along the whole path, not just a single instant. On Sun, Jul 2, 2023, 9:12 PM Nicholas Thompson wrote: > So the difference is at a positive max when the ball hits the ground and > at a negative maximum when the ball reaches its highest altitude? So h

Re: [FRIAM] Watch "The Most Important Idea in Physics: The Principle of Least Action - Ask a Spaceman!" on YouTube

2023-07-02 Thread Nicholas Thompson
So the difference is at a positive max when the ball hits the ground and at a negative maximum when the ball reaches its highest altitude? So how am I to understand positive and negative?vectors? Instantaneious Action is at a minimum when the two terms are equal? I have no intuitive sense of

Re: [FRIAM] Watch "The Most Important Idea in Physics: The Principle of Least Action - Ask a Spaceman!" on YouTube

2023-07-02 Thread Nicholas Thompson
Hi Frank and all, Ok, so the Action of an object is the diffrence between its kinetic and its potential energy. (Have I got the grammar right?) Since mass appears in both terms, the Action is the mass of the object times the difference between half it's squared velocity and it's height off the su

[FRIAM] Fwd: Watch "The Most Important Idea in Physics: The Principle of Least Action - Ask a Spaceman!" on YouTube

2023-07-02 Thread Nicholas Thompson
Frank, Thanks SO MUCH for forwarding this to me. To any other defrocked english majors on Friam, who have listened to these guys blather on about LaGrangians for all these years, I highly, HIGHLY recommend the video. Pretty short, AND, you might possibly, conceivably understand Steve Guerin whe

Re: [FRIAM] Cumulus Nevis

2023-07-02 Thread Nicholas Thompson
yup. On Sun, Jul 2, 2023 at 10:42 AM Barry MacKichan < barry.mackic...@mackichan.com> wrote: > But that was your point, wasn’t it? > > On 2 Jul 2023, at 10:40, Barry MacKichan wrote: > > Looks like snow to me. Like by our driveway when I was young. > —Barry > > On 1 Jul 2023, at 15:40, Nicholas T

Re: [FRIAM] Cumulus Nevis

2023-07-02 Thread Barry MacKichan
But that was your point, wasn’t it? On 2 Jul 2023, at 10:40, Barry MacKichan wrote: Looks like snow to me. Like by our driveway when I was young. —Barry On 1 Jul 2023, at 15:40, Nicholas Thompson wrote: Frank, you can add this to your categories of cloud, cumulo-nimbus, cumulus congestus, cu

Re: [FRIAM] Cumulus Nevis

2023-07-02 Thread Barry MacKichan
Looks like snow to me. Like by our driveway when I was young. —Barry On 1 Jul 2023, at 15:40, Nicholas Thompson wrote: Frank, you can add this to your categories of cloud, cumulo-nimbus, cumulus congestus, cumulus castellatus, cumulo-arboris, and now cumulo-nevis Actually, if I have my Lati