I was hoping you’d hop onto this thread! There’s nothing a-hole at all when being exacting about the technical differences - it gives us who don’t have a science education much-needed info and understanding.
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Current physics models sometimes predict things like this. One specific model has a “plane theory” of the multi-verses. i.e. our universe, while vast, may actually be one thin “plane” or membrane in a vast matrix of other plan universes that we currently cannot see/comprehend. And eventually one of these other plane universes will crash into ours creating what is essentially a new big bang and time of very rapid expansion.
Can’t find a link now, because apparently googling “multiverse theory + cosmology” just leads to pages of D&D links.
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I’ve seen a model of those planes, wherein a wave of sorts would collide, similar to a soldering wave and circuit board.
I wonder if the same type of multiplicative or cancelation effects would apply to those blobs as they would in other types of energy and energy systems?
Like in one set of circumstance where the 2 planes collide you get a multiplication of gravity, distortion of time, a black hole as we know it.
In another where the wave peaks are diametrically opposed, their effects on each other would be ameliorated to the point of almost non-existant. 
What would that be? Like a ghost pocket or area of un physical existence?
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So in the two trains each travelling at (almost) light speed but in opposite directions example, are they moving away from each other at (almost) twice the speed of light, or is this not possible according to our current understanding?
It’s not believed to be physically possible to exceed lightspeed at this point (some new evidence suggests it may not actually be the impossible barrier it was/is thought to be). It appears to each train that the other is moving away at 2x light-speed, but it has to do with the fact that the observer on train A has a reference frame origin point (wherever he is standing on the train) that is moving away from train B as fast as Train B is moving away from the origin.
So at that rate by the time he sees the other train in a given location it will already be somewhere else?
Yes since the light photons only travel at the speed of the light where he perceives train B to be is not where it is, it will actually be the 2x(speed of light)*(reaction time brain to register incoming light) further away.
it gets even weirder if either train passes nearby a very massive object that can bend the light photons…
Correction - if they are both travelling at the speed of light, Train A will only see train B at the moment they pass each other. Then it will appear to train A that B has frozen at the meeting plane since the light from B cannot travel faster than train A
I think that’s why it’s not possible to go faster than the speed of light even relatively, since you can only see the object where it was, not where it is.
I wonder if it would be like breaking the sound barrier, with a massive flash from the pressure release created by collision with photons and all of the other forms of radiant energy in outer space?
Then, as with sound, you would always be ahead of your reflection by the difference in time between the point at which your reflection was made and the distance it had to travel to be seen.
Or would an object cease to be able to be seen at all?
likely only if the objects colliding at the speed of light are very massive. If it’s just light itself, the photons individually are so lightweight that its unlikely that a collision of the would cause that kind of reaction.
Sonic booms do what they do only because air is a fairly dense fluid. Sonic booms are even louder under water.
Yeah. They don’t have much inertia. I’m just thinking that under those conditions we would see different behaviors from them than we do now.
As bodies in space, we move pretty slowly. Like sitting still in a rain storm being pelted with water droplets.And that’s with the atmosphere protecting us. But driving through an intense storm, or powering a sub through the water puts immense pressure on the body of the vehicle.
And since space isn’t really empty, it’s saturated with fields and currents of moving energy, it seems analogous to something like an ocean of energy.
So you’re in a vessel moving at or beyond the speed of light, colliding with and pushing massive amounts of different types of energy through the whole electromagnetic spectrum.
What happens when one hits this energy at the same speed or greater than it is moving?
Yeah! Sound travels faster too. My brother worked in sonar in the Navy.
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I think the top physicists int eh world are still trying to answer this question
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I haven’t studied this subject in over 20 years, but any object with mass will create a singularity if accelerated to the speed of light, which is why mass cannot travel at light speed. It is a hard limit due to good old E=mc2.
The implication of the equation is that infinite energy is required to accelerate an object with mass to light speed, at which point it would have infinite energy.
As far as time flowing at different perceived speeds, I recommend a high dose of LSD to make 5 minutes seem like 5 years.
Before the trip, read up on the concept of Planck Time and contemplate it over the next 16 hours. Real hours, not person on LSD hours.
That’s how I wrote that last post. Trying to get those letters to make words was like wrangling an ice rink full of skittles while wearing bunny slippers.
For real, one period of wrestling when you’re closely matched/just outmatched seems like for ever.
This begs the question: What in water is traveling faster than the speed of sound? Or is this some laboratory experiment, with no practical application?
Yeah I almost mentioned fighting and grappling.
One of my longest recent minutes was spent being positionally asphyxiated by a nearly 400 pound man who was good enough to stuff my escapes but not good enough to tap me out. Sign up for SHW competition, win SHW prizes.
Waiting for that bell to ring took forever.
The US Navy blowing things up underwater, I imagine. We even set off a nuke underwater to test in old WWII ships.
#freedom
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I dunno. Never really got that far in the conversation.
I guess the speed of sound through water has to be known though to accurately echolocate objects.
Super torpedos.
Yeah. Cavitation is a big problem with traditional propulsion systems.
Not a lot of things. it’s an intense threshold. Speed of sound is related to the density of the fluid the sound is being emitted in. The denser the fluid, the more molecules in the way of the acoustic wave and therefore the wave information gets sent faster “down the line” so to speak (the molecules bump into each much more frequently).
Just wait until militaries really start utilizing hypersonic weapons. No warheads, just a really dense, fast moving projectile to pulverize stuff.