Recent content by Eirhead

Whatever, I'm over it. Go look at the wikipedia entry for "observable universe" and see what it means to be outside the observable universe. I thought this was pretty basic stuff.

It's largely a theoretical discussion, but I can hardly claim these are my own personal speculations. Boundaries of AdS/CFT correspondence should adjust based on our relative position and motion in an infinite universe. And matter outside those boundaries need not obey a speed limit.

I mean, I tend to wonder a lot more about gravity from a quantum perspective lately, and have been consumed by black hole physics and observable universe physics. It's all stuff that is kind of beyond the framework of relativity. And there are things happening there that still require further...

Well, based on currently accepted physics. Fine I get it. But perhaps time dilation formulae needs to be revisited as we understand what is happening at cosmological distances / unobservable.

Just a quick shower thought: - if the Universe is finite, then c is the speed limit - if the Universe is infinite, then c is not a speed limit, but moving faster than c relative to something would determine if you can observe it or not.

I was just reading this on Dark Matter... http://en.wikipedia.org/wiki/Local_supercluster#Dark_matter Gave me some better insight into the thought process of the idea. But I think I disagree with it. I believe near field gravitational lensing versus far field gravitational lensing could be used...

Ok, that's a smidgen of the type of information I'm looking for. Now if the plasma density were increased would it be possible to increase the wall-plug efficiency? Or alternatively, have an experiments been scaled upwards?

I'm trying to read as much as I can about the topic. So I've read over wikipedia and watched some videos and such. It seems to me, this method of plasma acceleration would be prime for space thruster applications. Right now VASIMR is using ICH rf coupling to accelerate their plasma. They...

How much carbon dating have Earthlings done with rocks outside our solar system? Outside our Galaxy? Perhaps we exist in a space-time bubble created by the formation of our galaxy or star? The science of our universe relies way to heavily on information found from Earth's point of view, I'll...

K I will, just on my cellphone right now. I have to go through some NASA documentation.

Less centripetal and centrifugal force when completing the same maneuvers past pluto than there is nearer to Jupiter, Mars or Earth. Basically it would take more acceleration in deep space to feel "1 G force". These are test results returned from the Voyager probe. I don't know the numbers...

Another supporting piece of science: Pulsars pulse at atomic clock precision, shouldn't there be a slight oscillation in pulse rate over the course of a year based on the rotation of the Earth depending on if we're swinging towards the star or away from the star?

Isn't it true that the voyager probe feels less force from relative accelerations now that it's in deep space than it did closer to earth? I believe I read that somewhere. This tells me that time is kind of more like constant, but the forces in nature like gravity and the energy from our sun...

// Paraphrase of last post - thought it got lost somewhere, but I'll leave both up Hmmm, ok. I thought that as Alpha Centauri approached near negative c relative to your space crafts position that it's kinetic time dilation would be kind of almost frozen in time. Because the speed of light is...

Haha, you it's a completely hypothetical question of course an abrupt stop or flyby is fine. But I was kind of curious how the kinetic time dilation equation interacted between Alpha Centauri and my Space Craft. With that kind of acceleration towards Alpha Centauri, Alpha Centauri's relative...