Light Can Twist as Well as Spin

Light Can Twist as Well as Spin -APOD
With the more esoteric light topics here lately---when I saw this I thought others might be interested.
"My flashlight's beam looks like that because the photons have more orbital angular momentum"--That'll impress them /ubbthreads/images/graemlins/smile.gif

That's incredibly cool, thanks!

It also prompts a zillion questions. I'm left wondering how this affects calculations of the amount of energy left from the Big Bang.

I'm also intrigued by the proposal that the property can be used to increase data transmission flux.

[edit] And now that I'm revisiting this, it smells kinda fishy too. If the spin exists then a photon has an added amount of energy in the form of angular momentum, doesn't it? But this doesn't agree with, oh what was that equation from so very far back in my education, E=h(nu)/(lambda) as the total energy packed by a photon. There must be more to this "than meets the eye", so to speak.