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Comment Skeptical about orbital angularmomentum in photons (Score 4, Interesting) 107

It can exist, but virtually every paper I've ever read, especially any that mention optical vorticies confuses Orbital Angular momentum with simple minded othogonal function decompositions of spatial light patterns. Any spatial pattern including this printed page can be written in terms of legendre polynomials or YLMs but that in itself does not give it orbital angular momentum quantum numbers. That's a whole nother ball of wax. To understand the latter you have to puzzle out why you think a half-wave plate (a circular polarizer) is a linear device that doesn't change the frequency of the photon. (after all, for every reversal of polarization, the earth or whatever the device is attached to has to accelerate to absorb the equal and opposite polarization).

Comment vastly stronger symmetry effect is already known (Score 1) 120

As light passes by a sun it is subject to an asymmetric situation where the solar atmosphere is in a magnetice field closer to one pole than another, rotating and having a gradient both radially and with the azimuth. thus there's a strong symmetry breaking effect on this light. On average, for all light passing the sun it's an equal handed effect. But if your planet happens to be subject to light that cam from the left side of the sun versus the right, that light could have a net polarization.

this effect would likely be orders of magnitude greater than this weak force polarization effect.

Comment their theory isn't provable (Score 1) 120

All life we know about came from a single origin since all life is based on DNA, RNA and proteins. whatever the origin was it would have had left or right handed DNA and thus so did everything that followed. there's no reason to suppose the need for a bias for one or the other. one of them was going to win. it's like vhs and betamax.

Comment because half the people with iphones (Score 1) 264

don't need 16Megs. People on slashdot criticize apple for forcing you to buy features you don't need. Now you critize apple for making the base model something not geek worthy. they are offering what their customers need. Chances are the number of songs or photos you want to keep stored on your iphone at any time isn't geoing with time. and that's the majority of the space usage on most people's phones. With icloud and beats streaming that need is going to dramatically shrink as well. The only thing likely to really be a space hog is more tricked out games and things that use the greater pixels of the large phones. But as I said, at the moment it's photos and music that dominate the storage needs and those will be going down not up.

Comment Re:Alibaba's AliExpress store is ripe with fakes (Score 2, Interesting) 191

Yes alibaba is a theives market. Alibaba does little to root this out too. Moreover the entire china small items trade competiveness relys on the rediculous postage rates (low) that allows delivery in the US for a mere $1 worth of postage. Finally all the small vendors lie about the item in the postage to evade customs charges.

Amazon could make great noises and will.

On the other hand who owns Alibaba's 120 billion? Americans now. If the congress sicks their dogs on ALibaba it's the same as pilfering 120 billion from investors.

Meanwhile amazon has a PE nearing 1000 (who are they kidding?). AMazon's 1000 PE is justifed only on the basis of their growth rate not their earnings. If their growth is threatened (enter alibaba) their stock price crashes. if it crashes to a P/E ratio of 30 or 100 then 90% of the stockholder calue is whiped out. Gone. Not transfered. Gone.

So what's your poor bribed congressman to do. Act on alibaba's theivery to save Amazon, or not?

tough choice.

Alibaba's stock price over the next year will be a race between their growth in value, and the trees Amazon and E-bay fell in their path. I predict it goes up for 1/4 then down in response to regulatory pressure after the elections. THen eventually back up if their revenues grow,.

Comment Re:This won't amount to anything... (Score 1) 122

I was going to say the same thing. It's total rubbish in it's claims. Being just yet-another-linear combination of MiMo modes it provides no additional channel capacity. But there is the possibility that the demodulation/modulation methodology is easier to implement than other fast modulation schemes.

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