TigerstuckinMS

(No Message)

A is 30. B is B.

EDIT: Totally not 30. It's 45. I wronged when I should've righted.

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What in the frick are you talking about lol

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There is no way to measure the speed of light in a single direction that isn't dependent on how you synchronize two clocks and how you compare the two clocks. Depending on how you establish the synchronization and compare the clocks, you can measure different one way speeds of light from experiment setup to experiment setup and even speeds that different observers of the same experimental setup will disagree on.

The best we can do without introducing the issue of multiple clocks is to use a single clock to measure the time it takes light to travel from the emitter, to some other place, then back to the detector, all as measured by the single clock.

The upshot is that we know very well what the round trip speed of light is, but the one way speed of light is currently undefined and may well depend intimately on the experimental setup with the universe always conspiring to make the round trip time constant no matter what the one way speed measured is.

Einstein recognized this and, by convention, said that the one way speed of light is equal to the round trip speed. However, this is just an arbitrary definition of the one way velocity used in the formulation Einstein published and the actual one way speed may well be unknowable or even not real.

After all, the speed of light isn't special because it's light. It's special because it's the speed of causality in the universe. Talking about a one way speed might not really mean anything since causality just requires a one way flow of information from casual event to caused event. That interaction can happen at any speed and neither the casual event or the caused event can ever know how fast the interaction happened unless the caused event then communicates back to the causal event.

It's only when you try to share information two ways that causality paradoxes can occur, and that's where the well measured two way speed of light (causality) comes in. That two way interaction has a maximum speed that makes sure before and after remain in their proper order.

To illustrate this, let's say that you and I measure the two way speed of light and position ourselves ten light minutes apart, per that two way speed. Let's also say that I'm going to send you a message that says the time on my clock, starting at 0. When you get my message, you immediately send me a message saying YOUR time, again starting at 0. Every time we receive a message, we send our new time out.

Okay, let's assume that light moves the same velocity both ways. I send you "0 minutes". Ten minutes later, you get the message and you send me "0 minutes". Your message gets to me after 10 minutes, so there's been a 20 minute trip and I send you "20 minutes". You get my second message after ten more minutes and send me "20 minutes" and so on.

Now, let's do the same experiment, measure the same round trip speed of light, move the same distance apart, and follow the same rules about the messages we send. The only difference is that when I send you a message, it moves infinitely fast, but your return message only moves half the speed of light. Remember, we agree on the round trip speed that we measured together. I send you "0 minutes". You get the message instantaneously and send me "0 minutes". Now, your message only moves half the speed of light, so when I get your response, 20 minutes have passed, so I send you "20 minutes" and you, again, instantaneously get my message and send back "20 minutes".

In both circumstances, the one way speed of light is different, but the round trip speed is the same and there is absolutely no way for us to know the difference because in the process of us comparing our clocks, the round trip speed of light that we measured and agreed on prevents us from being able to see anything other than the two way speed.

Causality/relativity is wild.

Wasn't there once an OTer who called another out and wanted to meet at that park right down Antioch so they could check knuckles, then a third OTer went down there and hid in the bushes to witness it, but the second guy never showed up?

It's been all downhill since then.

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It’s really not a bad neighborhood.

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Man, if people are driving by shooting up houses, it's a bad neighborhood. Move. Now.

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Crime was as bad or worse in NOLA three decades ago?

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Mid 90s? Oh yeah, but it was way more concentrated in certain areas of the city and everyone knew the NOPD would crack skulls if you really got out of line or stepped on their rackets.

And as far as violence in the touristy areas, most violent criminals wouldn't even THINK about fricking with tourists just in case the NOPD learned to read minds. Sure, there were the con artists and pickpockets, but popping a round off or mugging a tourist was a fricking bold move. The NOPD had ZERO tolerance for that shite.

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News just confirmed a Good Samaritan shot the shooter.

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Well, this story just got buried.

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It's made of piping hot queso dip.

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Damn, I want some nachos.

For a couple of hours, it burned a bit and felt like i had to pee all the time, but by the time the drugs completely wore off, I was fine. The doctor told me I have a urethra like a garden hose, so I got that going.

I went and had Chinese food with mom right after the procedure. I was one relaxed mofo.

Any time someone approaches you and says "I need to shove this camera up your dick", I highly recommend you demand lots of Valium and some propofol.