Don't You Hate it When... 🤬

@Matt85 Jesus didn't know sh*t about conic sections
Still upset: helenS

@helenS Jesus defied the laws of physics. Pretty sure he knows about conic sections when he walked on water.

@ElwoodBlues Riding horses? 😏
Looks like a field to me, with gradients included.

@helenS Fancy name for a saddle surface!

@ElwoodBlues Got it 😂

@Pfuzylogic Rock music light shows generally suck. Genesis used aircraft landing lights for their tours 😏
More often than not, lack of musicianship is compensated by an elaborate light show (and semi-naked girls on stage, of course).

@helenS
BOV actually had wrist lasers that they shot at a mirror. Back then, since they were the first; there was no regulations on safety and several audience members were blinded by errant laser paths.
Giant yawns were the hazards from Led Zeppelin’s show but you make it out to be great since the 1977 tour was their last before the drummer Bonham died.
Now he did a great 20 minute solo on Moby Dick!

@helenS Are you saying the musicians in Genesis were poor musicians?

By the way I saw them use a laser light show using larger mirrors suspended over the stage which I saw then at Knebworth in 1978.

@mindless Thank you. Still upset though...

@helenS this will get the story out too 😉

@helenS Yeah, looking at constraints on an NxN rotation matrix and degrees of freedom of the matrix definitely works. It also makes me think that axes of rotation don't generalize.

Not so coincidentally, the number of rotational degrees of freedom in a space of N dimensions is the number of mutually orthogonal 2D planes the space can accommodate, which is also the number of pairs of axes. This leads me to believe that it makes more sense to think of rotation as happening in a plane rather than about an axis. The axis concept (perpendicular to plane of rotation) only works in 3D.

@ElwoodBlues From a physics point of view, the number of degrees of freedom is irrelevant as long as the degree of degeneracy isn't taken into account. A non-linear molecule containing N atoms, for example, has 3N-6 vibrational degrees of freedom, in principle, but many of them may belong to degenerate point groups, so in fact you will have much less. Octahedral and tetrahedral molecules are good examples. Same is true for space groups in crystals.

@helenS The 1 DoF of a 2D rotation matrix is real and true. And, although I don't know how to prove it, I very strongly suspect that the 10 DoF of a 5x5 rotation matrix is real and true. I don't think those higher dimensional DoFs are degenerate, but I don't know how to prove it unless counting DoFs in orthogonal unit vectors of a rotation matrix is a proof.

@helenS you should’ve heard me sing it 🤐

@Ghostinthemachine Somehow I feel you're a singer in a rock and roll band!

@helenS I’ve been told I have the voice of an Angel….that swallowed Joe Cocker and spat out Leonard Cohen
😇

@OldBrit Lick lick 😋

@helenS Bit chilly for one today maybe

@OldBrit Actually I love ice cream in winter! ❤️
My absolute favorite is "Stracciatella" 😋

@DeWayfarer I don't really know what "OnlyFans" is but I would assume it's a porn site where girls make some money by putting themselves on display for their paying "fans".
It would be fun to talk solely about something totally unrelated!

@helenS yeah but it's always one subject... themselves !

@helenS So that's your secret! Now I can attempt to seduce you.

@Nitedoc Try to – looking forward... 🌷

@helenS You know I will.💐

@SW-User I should do what, please?

@helenS your conic sections OnlyFans account

@helenS Don't forget that the myth of Prometheus was the basis for the garden of eden myth as well, except for that little detail of crows eating his liver every night, only to regenerate every morning.

@NativePortlander1970 Yes that's true. In my opinion, that myth does not represent the true Greek spirit. It's much too serious, and it's reactionary.

@helenS Yet, by what I understand, it's one of the first myths as Prometheus is a Titan, preceeding some of the more ridiculus ones, like Narcissis.