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View Full Version : Time May Fold Back on Itself. Or Something

Tuckerfan
07-04-2007, 09:03 PM
Mind bendingly serious article on an experiment to see if time travelling particles are possible. (http://www.sfgate.com/cgi-bin/article.cgi?f=/c/a/2007/01/21/ING5LNJSBF1.DTL)If you can do that, Cramer says, why not push it to be better-than-instantaneous, and try to make the signal arrive before it was sent? His extra twist is to run the photons you choose how to measure through several kilometers of coiled-up fiber-optic cable, thereby delaying them by microseconds. This delay means that the other beam will arrive at its detector before you make your choice. However, since the rules of quantum mechanics are indifferent to the timing of measurements, the state of the other beam should correspond to how you choose to measure the delayed beam. The effect of your choice can be seen, in principle, before you have even made it.That's the easy part.
ivylass
07-04-2007, 09:04 PM
My head hurts.

Ouch.
Least Original User Name Ever
07-04-2007, 09:07 PM
My head hurts.

Ouch.

Ah, but it already did hurt. You're just remembering what it hurt like in the future.
ivylass
07-04-2007, 09:09 PM
Keep talking geeky. It turns me on. :p
Least Original User Name Ever
07-04-2007, 09:11 PM
*now feeling the pressure*

How about a nice...back rub? We can converse about something geeky then!
Autolycus
07-04-2007, 09:18 PM
"Strange as it sounds, retrocausality is perfectly permissible within the known laws of nature"

Time running backward is part of nature? ::head asplodes::
ivylass
07-04-2007, 09:20 PM
I was watching the Science Channel and they were talking about Hawkin's Paradox and black holes and I thought my brain was going to melt.
Tuckerfan
07-04-2007, 09:29 PM
"Strange as it sounds, retrocausality is perfectly permissible within the known laws of nature"

Time running backward is part of nature? ::head asplodes::
:::Gives Tuckerfan an idea:::

Hey! Let's build a time machine, go back in time and show the article to Einstein! :D
Sunspace
07-04-2007, 10:00 PM
Me, I'd like to go back and tell myself to ask Anna-Marie Hubbard out, dammit. Greatest regret of my life.
ivylass
07-04-2007, 10:05 PM
Yes, but see, under this theory, you already did ask her out.
Least Original User Name Ever
07-04-2007, 10:05 PM
You already did everything you were ever going to do with her as well...
...so..was it any good, tiger?
Cartooniverse
07-04-2007, 10:18 PM
:::Gives Tuckerfan an idea:::

Hey! Let's build a time machine, go back in time and show the article to Einstein! :D

Didn't you mean you wanted to go back in time and show the Particle to Einstein ?
Rysdad
07-05-2007, 12:17 AM
Back in time, schmack in time. I just want to be able to hop ahead 24 hours, buy a paper, and then come back to where I was.

And buy a lottery ticket.
DMark
07-05-2007, 01:00 AM
Back in time, schmack in time. I just want to be able to hop ahead 24 hours, buy a paper, and then come back to where I was.

And buy a lottery ticket.

My luck, that would be the one edition where they had a misprint.