Re:Magnetic wormhole created for first time
by kbenson on Thursday September 03, 2015 @12:50PM
(#10165979)
Which is why we didn't just discover FTL communication. The term "wormhole" is a fairly loaded term for the layman. One of those rider concepts is instantaneous.
Re:Magnetic wormhole created for first time
by elektromekatron on Thursday September 03, 2015 @03:01PM
(#10166883)
I am not sure I agree. For the layman, wormholes come in a couple of popular forms, and the most common is the one with a weird energy tunnel thing between the entrance and the exit. The version where the entrance is the exit, such as in the game portal, seems to be much less popularly considered.
Re:Magnetic wormhole created for first time
by kbenson on Thursday September 03, 2015 @04:07PM
(#10167220)
Fair enough. It may be more accurate to say one of the rider concepts is they allow FTL.
Re:Magnetic wormhole created for first time
by elektromekatron on Thursday September 03, 2015 @08:03PM
(#10168179)
I guess, is just that to think that FTL matters and ties up with causality means to grok relativity, and causality issues may be a result of a layman physics views of wormholes, but it generally isn't really a part of it.
I think you are making a category error by saying that wormhole is too loaded a term for the layman in this instance. Non-technical people are generally better at dealing with ignoring the details of a metaphor anyway.
http://www.nature.com/articles/srep12488/figures/1
Note red lines showing magnetic field, how they get cloaked by spherical device, starting on right side, then they re-appear on the left side.
This is the figure they use to show "wormhole", but it's just the figure above with erased spherical cloaking device (which must be physically present, field is still there, just the device hides it):
https://d1o50x50snmhul.cloudfront.net/wp-content/uploads/201...
And this is how it looks in real life:
http://www.uab.cat/Imatge/758/790/cucweb.jpg
Still very cool, but now you can see it's basically just some sort of shielding of magnetic field that creates distortion of the field on the other end, nothing is getting teleported.