an even better idea would probably be to just use gas pressurized charges. screw gun powder, we're in space! we can shoot bullets with compressed air! the net force applied to the bullet will be dependent on the difference in pressure between the charge and the environment. since we are in a vacuum we can get this difference to be VERY large :3

A copper wire is just a copper wire. It has many uses, but in many cases throughout the past, copper wire has been used as a conduit for electricity.

Are the universe and matter separate? Or are the two similar to the above example, where the Universe is merely the conduit, and matter is the thing which it channels?

An esoteric quantum mechanics question for you:

Let's say a resting particle decays in say electron and a positron and they fly along the x axis. As i understand it they share the same wave function.

Because the particle was at rest and the momentum has to be conserved the moment I measure the momentum on the positron, the momentum of the electron has to be same just in the opposite direction. Like those entangled spins i guess.

If you measure the momentum on the positron would this still effect measurement of the position on the electron because of the uncertainty principle? Would it even be possible for the observer of the electron to tell that his measurements are no longer accurate?

The problem with Theoretical Physics is that I don't see any practical applications for it in everyday life. What applications could Theoretical Physics have in the near future that would turn it into an "Applied Science"?

Kuhn or Popper

which was right?

I didn't quite get this book but it did teach me that people who use the word Paradigm mostly don't know what they are talking about

With the Big Bang and the expansion, do you think Light or waves is a big part to the expansion of it? I keep imagining the first sun forming and the light given off and how light keeps traveling, it would reach the edge of the universe, but then keep going expanding it. That or any wave or maybe asteroid could expand the galaxy, but I just like to imagine light doing it.

Also I almost don't like time dilation since there is no "save" attached. As in if you are in a falling house, you get a few seconds, but the house still lands and you die when it does. Wondering if you have any thoughts.

Also the theory I like, that is like time dilation is the speeds a human can overcome to stand up or walk in. (overcome velocity or acceleration) Like I like to think if there was a ship that could go the speed of light, a human would be dragged by it, not fly it. Or if a human was in a falling house, the human could overcome the acceleration of the fall and stand up. But the house would still land and the human die.

Third observation I have is on Fusion. Lots of scientist like to say its cold fusion or gravity fusion. I mostly see it as a way to balance things, then once things are balanced the world makes sense and you can operate it. Like if its so cold, and you think about it being that cold things might get clearer for you to see. Or like setting a measuring standard first. So the gravity of the sun standardizes things so fusion can happen. The gravity there is so massive it brings balance then, then fusion can happen. Wonder what your opinion is.

How did you manage to keep the trolling so low in this thread :P

I personally think that Tsadkiel has satisfied the criteria for starting this thread.

However, I'm also glad it keeps going.

Can you sub-entangle particles from a batch of material entangeled to itself?

Can you entangle a batch of materials instead of just a pair of atoms?

Would those sub entagled batch still be able to influence the entire batch?

Is there a way to prevent what the sub entangled batch influence from effecting another sub entangled particle.

self replicating machinery is one of the holy grails of modern robotics. there have been several attempts at this in the past and the link is one i have heard the most about. as for the replicators themselves, there are strict limits that our current understanding of thermodynamics places on the minimum size of mechanical devices. as you make something smaller and smaller the heat of the thing plays a larger and larger role in its operation. heat is just a measure of "vibration" in an object and when something gets small enough, these vibrations can literally tear it apart. that said, who knows! there may very well be compounds out there that are exceptionally heat resistant and this may allow us to produce such nanoscale devices.

1. First Eve related question: FTL communications page describes how this tech was discovered in Eve's fiction. Would it be plausible to use something like this in real life as a communication network?

2. If the universe rotates around itself, would we be able to measure this rotation speed?

3. If a black hole is donut shaped, what happens if you travel through the donut hole?

4. We've mapped the universe to the past with telescopes but if we could see the whole universe at one moment, how the map would differ from the observed images? Would all those old galaxies far far away be just black holes now?

5. How close to Jupiter can human possibly go without dying? How about Saturn? I read long time ago something about Jupiter being quite lethal to humans even at the orbital distances and thus making manned space travel there impossible but the article didn't mention how close people actually could go safely.

...No it's not.

"Vibration" in an object isn't even a truly correct explanation of temperature. But to use this explanation to describe heat?

....*suspicious*

I think this is the only one I can describe well. Yeah at lower speeds like you describe I see that. But here in my country we are experimenting and trying to build high speed rails. So the idea is how fast can something can go and its still safe in a sense. Like pilots have to wear those suits ( in jet craft) at high speeds and that might be how fast a human can go really.

So it kind of goes with safety testing. How fast should high speed rails go with how well humans can deal with speeds. Like if a human could go the speed of light on a rocket. He would be more like a suitcase or luggage really then a pilot or anything else. But at lower speeds the human stays human. Can walk around and jump and buy products. I kind of equate time dilation to when the speed goes so fast its hard for a human or so to deal with the speed. Like they cant pilot it anymore and then in sense are just luggage being dragged by the craft.

[quote=rodyas]

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As for your thoughts on time dilation you are thinking more like EVE's time dilation where time slows down and not relativity time dilation. With actual time dilation you wouldn't get "extra" time to save your life in your "falling house" idea. The way time dilation works is this. For the person moving at .99c they would experience 1 second just like you are now. For the observer standing still they would experience 1 second just like you are now. But the .99c person's 1 second would last "longer" than the 1 second for the observer but each person wouldn't feel any different. This is like that "twin paradox" thought experiment where one twin gets on a spaceship moving .99c and the other twin stays on earth. When the spaceship returns to earth the twin on earth is much older if not dead and the other is only slightly older. Time travel is a hard concept to grasp.