# Posts tagged spacetime-dimensions

Would it be possible for aliens that originated and evolved in a planetary system beyond the ring singularity of a rotating black hole to send individuals out into a normal universe to colonise it?...

The universe described in the orthogonal series http://www.gregegan.net/ORTHOGONAL/00/PM.html is one, in which the minus sign in the space time interval is replaced with a plus sign. So this unive...

In the middle of the night, while J. Random Human is sleeping, A. Hypersphere picks him hyper-up extremely carefully (so that none of his matter falls out in a direction he doesn't have), flips him...

From: https://en.wikipedia.org/wiki/Multiverse The multiverse (or meta-universe) is a hypothetical set of various possible universes including the universe which we live in. Together, these u...

Time is not a constant, Albert Einstein proved that much. Time dilation is a difference in the elapsed time measured by two clocks, either due to them having a velocity relative to each other, or b...

I have a ship that begins the equation traveling at 50 percent the speed of light, but decelerating constantly to finally land on a certain planet (towards which it is moving the entire time). It b...

I have a world where there are two types of beings. One type, let's call them X, exist in our "dimension," and the other, let's call them Y, exist in another "phase" or dimension. Only 10% of X b...

Our universe has 3 global spatial dimensions - that much I know. I am almost sure, based on an incredibly shoddy knowledge of physics, that there couldn't possibly be a 4th spatial dimension that w...

In this question, I asked about a universe with (amongst other things) 4 large spatial dimensions. In 3 dimensions, we have the familiar periodic table with its familiar arrangement of atoms in th...

Suppose you have a 2+1 dimensional universe where the physics of that universe (we'll assume that the physics causes something similar to chemistry and that there is no gravity, but there is specia...

I know that someone has asked how chemistry would be in four dimensions but I was wondering what would chemistry be like in two dimensions? From what I understand, in two dimensions, particles, ins...

I am attempting to design aliens that live in a universe with a 4+1 space-time--i.e., a universe with four orthogonal spatial dimensions, rather than three, in addition to a fifth time dimension. I...

They do not necessarily meet humans and try to interact with them. This question is more about the technical possibility/impossibility of 4D aliens being able to "analyze" the inner structure of ou...

My question is this: can excess mass be bled off into hyperspace (the large and compact extra dimensions, not the Star Wars-esque swirling vortex), yet the matter remains in our universe? Is mass ...

We do not know how exactly it happened, but poor John Doe made a space-time trip along a three dimensional analog of a MÃ¶bius strip (a Klein bottle). He is now back on Earth, but he is now the mir...

I'm taking the example of a rotating wheel space station, in which artificial gravity is created through rotation due to the inertia inside. The idea in the 3D environment is that the wheel (2D) i...

Idea prompted by Brian Greene's The Elegant Universe: String theory postulates microscopic dimensions in space. Could you conceal an object by rotating it into one of the microscopic dimensions a...

Let's assume there are more than 3 spatial dimension, for example 4 (the 4th not beeing time, but spatial) Would a common energy discharge, explosion etc. affect the 4th dimension? I am not sure...

So for lack of a better term (I'm sure there is a better term) imagine a universe without curvature as being like a sheet of paper. You have left, right, forwards, backwards, up, and down. Now take...

I've been thinking about doing something involving bubbles of stopped (already answered here), slowed down or sped up time. What would that look like for different speeds? Is there any way of ca...

The Setting: I have an idea for a universe that, in an inversion to our own, is filled for the most part with matter in solid, liquid, gaseous or plasma form, while vacuum and degenerate matter is...

Is there any solid, scientific counterargument against the hypothetical explanation that attributes dark matter as matter in hidden planes of existence? I am trying to construct a world in which t...

Some of what I read in How could a 4D organism influence events in our world made me think in a different direction about a question I asked before. I'm trying to create a large sphere shaped fiel...

In this question, I asked about a matter-filled 4-spatial-dimensional universe, with a gross structure defined by my own answer to that question. Then, in this question, I asked about what the per...

I was reading Flatland, and the thought occurred to me that interaction between an n-dimensional being and a n+1+-dimensional being may not only be difficult but dangerous, that Flatland contains e...

I find time dilation confusing so I'm not sure if it is a relevant factor. Lets say you have a spaceship. There's no such thing as faster than light travel, but you do have inertial dampener techn...

We have these "magical" items everywhere in fiction; from the classic rabbit coming out of a hat illusion, to the TARDIS from Doctor Who, to Newest Magical Beast Newt Scamander Briefcase. These ite...

In my universe a 4th SPACIAL dimension exists around our 3 dimensions. I'm playing with ideas for a society that has access to a 4th spacial dimension and am currently thinking of what they would b...

Note: I'm talking about a fourth spatial dimension. As far as I can tell, a 2 dimensional creature has one possible digestive system structure; have a cavity inside its body connected to the outsi...

I am in the midst of writing a book wherein one of my characters (Let's call her X) can affect spacetime, mostly by causing time to dilate. My character is earthbound and a shadow organization di...

Okay, so I have a sci-fi setting in which there is a form of FTL travel. Imagine the universe(all three/four dimensions of it) was stretched out onto the surface of a sphere. Now assume that ther...

This seemed too scifi or hypothetical for physics, so here goes. Suppose a manipulated quark with 0 mass could travel faster than the speed of light. It's known that the faster you go, the slower...

Judy likes coffee. Right now he is standing in the middle of the urban park sipping it. Unbeknownst to him a local phenomena occurs somewhat near: space itself bends where a lovely group of lilies...

I am working on a story which is based on space time hacking and moderation. While researching I found that a wormhole is simply a Folded time-space-as shown in demonstration below (Image credits: ...

Ever since grade school, we have been taught to visualize time in the form of a time-line. This model works particularly well considering the fact that, according to widely accepted scientific theo...

In the story I'm writing, an ancient civilization once roamed the local group, traveling from galaxy to galaxy with ease. Thousands of millennia after their disappearance, humanity stumbles across ...

Newton who laid out a set of mathematical rules to predict the motion of objects from a falling apple to planets orbiting the Sun, however it was Einstein who described how two masses tend to accel...

Asking for what pseudoscience might explain a storytelling need: Given parallel dimensions (worlds), we discover that through a portal device, a person equipped with a special spacesuit-like outfi...

Any ideas how an advanced alien race could speed up time in a specific region of space? I'm working on a storyline in which an alien race uses a time bubble to accelerate time so the construction ...

I'll have a limited space like $1 km^3$ that have (through handwaving) more then three dimensions. But anyone entering it would perceive it as a three dimensional space. A little bit like this vide...

Assuming that we have a universe with four spatial dimensions plus time, within which atoms exist that can form solids, liquids, gases and plasmas, the compounds that can be formed having physical ...

I want my actors in outer space but I don't want them roaming around freely. Like, if the actors were in a building, there would be walls, doors, elevators. If they were on a land, there would be ...

The Doctor's TARDIS is larger on the inside than on the outside. How can this be achieved? The conventional answer is that The TARDIS is dimensionally transcendental ... the interior exists i...

In my answer to my own question, Physical laws for a matter-filled universe, I detail the gross physical laws that would shape my four-spatial-dimensional matter filled universe. Given a slowly ex...

I know that in our universe, electromagnetism and gravity decrease with the inverse of the distance squared. Would it be possible though for there to be a force in another universe with three spati...

Scenario Set in modern day Antarctica, a group of very talented scientists are working on a highly confidential scientific experiment which would one day allow us to manipulate time literally. The...

In this world I'm building, I need it to be possible to have enclosed spaces/worlds connected to the main one. Ideally the main world would closely resemble ours, with the same laws of energy/physi...