On 17/09/2015 08:55, Spike wrote:
On 16/09/2015 17:38, Dave Platt wrote:

Here's a good video-and-animations explanation of the entanglement,
how we know it exists, and why it cannot be used to transmit
classical information faster than the speed of light.

https://www.youtube.com/watch?v=ZuvK-od647c

Thanks for the video link. I wish physics had been presented like that
in my day...but it wasn't. It's interesting to note that in a couple of
places, the presenter said something like "... most scientists agree
that...", which implies that there may well be other qualities of the
particles that are not understood at this time - and which could be
exploited.

Looking through the video a second time, one of the contributors says
something like "...It's almost as if there's someone standing behind it,
playing us a trick". I took this to mean that while the gross,
measurable, properties have been accepted, there is more to this that
has yet to be discovered. It might well happen that a deeper knowledge
will reveal some property that could result in this being the basis of a
communications system or a matter transporter.

I'm struck by the comparison between this and the atomic physics of the
era when the state of knowledge of the latter amounted to that related
to protons, neutrons, and electrons.


--
Spike

"Nearly all men can stand adversity, but if you want to test a man's
character, give him power" - Abraham Lincoln