#spacetime

[noosphe-re]

The scale of everything. It begins with spacetime (quantum foam) and moves through small elementary particles, intermediate elementary particles, large elementary particles, components of composite particles, the components of atoms, electromagnetic waves, simple atoms, complex atoms, molecules, small viruses, large viruses, chromosomes, cells, hairs, body parts, species, groups of species, small areas such as craters, large areas such as land masses, planets, orbits, stars, small planetary systems, intermediate planetary systems, large planetary systems, collections of stars, star clusters, galaxies, galaxy groups, galaxy clusters, galaxy superclusters, the cosmic web, Hubble volumes, and ends with the Universe. (via Wikipedia)

[felinedae]

Im not immune to Davejade. In fact, I am eternally inflicted with it.

[spacetimewithstuartgary]

[tthomusic]

Galactic Giants Titan and Saturn via NASA https://ift.tt/NhblBA6

[scrapoddles]

qhick sketch of them <3

[pangeen]

Peculiar Galaxies:- Speaking of galactic collisions, peculiar galaxies are almost always the result of one! It is believed that peculiar galaxies compose 5 to 10 percent of all known galaxies. So, it’s safe to say that galactic collisions are a common occurrence in our own universe!

Via space talkies

[brigriv]

Y'ALL I did the Dave Jade again.

Last time this happened was seven years ago. (I don't know anything about post HS ending content, I barely remember how it ended, but THIS MOMENT this is it y'all I projected so hard onto this ship.)

[thepastelpeach]

in this house we ignore the epilogues/homestuck2, the only things in head is happy endings and stable character growth

support me and see my art early by becoming a patreon^^

[todays-xkcd]

For decades I've been working off the accumulated rotation from one long afternoon on a merry-go-round when I was eight.

Net Rotations [Explained]

Transcript

[Cueball is standing on one leg in front of a whiteboard, thinking to himself. The whiteboard contains two vertical lines crossing over each other at multiple points and other notes. There are curves around Cueball indicating circular motion.] Cueball (thinking): ...and three lefts for going down the stairwell at work, two rights from cloverleaf interchanges, minus one for the Earth's rotation... Cueball (thinking): Okay, that's a net of 17 right.

[Caption below the comic:] Spacetime health tip: Remember to cancel out your accumulated turns at the end of each day to avoid worldline torsion.

[funeral]

Rudy Rucker, Infinity and the Mind: The Science and Philosophy of the Infinite

[a-typical]

According to General Relativity, matter warps spacetime, and this warping of spacetime is what we perceive as gravity. Gravitation isn't actually a force, it's a consequence of motion through curved spacetime.

Earths elliptical orbit around the sun is actually a straight line in curved spacetime, this is called a geodesic, a straight line on a curved surface.

So, the sun, for example, curves spacetime (matter telling space how to bend) and objects, like the earth, orbit along that curve (space telling matter how to move).

If matter didn't curve spacetime then nothing would orbit anything and gravity would be nonexistent.

Here's a picture showing a straight line without spacetime curvature and that same line with spacetime curvature.

[startswithabang]

A Spacetime Surprise: Time Isn’t Just Another Dimension

“What’s remarkable about all of this is that Einstein, despite lacking the mathematical insight to understand exactly how the dimension of time was related to the three conventional dimensions of space, was still able to piece together this key physical insight. Increasing your motion through space decreased your motion through time, and increasing your motion through time decreased your motion through space. All measurements of space and time are only meaningful relative to the observer in question, and depend on the relative motion of the observer to the observed.

And yet, the spacetime interval remains invariant. No matter who is doing the observing or how quickly they’re moving, the combined motion of any object through spacetime is something all observers can agree on. In some ways, the success of relativity was made all the more impressive in light of Minkowski’s assessment of Einstein. Speaking to his (later) student, Max Born, Minkowski had the following to say, “For me [relativity] came as a tremendous surprise, for in his student days Einstein had been a real lazybones. He never bothered about mathematics at all.” Fortunately, in physics, the Universe itself — not anyone’s opinion — is the ultimate arbiter of scientific truth.”

There’s so much to marvel at when it comes to physics, including how many people were on the precipice of discovering the secret of relativity, but it was an unlikely patent clerk, a failed former physicist, who arrived at the key insight: Einstein. The mathematical consequences of that, however, were worked out by others, including Einstein’s former professor: Hermann Minkowski. What we learned from that, as far back as 1907, was fascinating, as not only is time a dimension, but a fundamentally different type of dimension from space.

The Universe, once you include time, isn’t Cartesian anymore. Here’s why that matters.

[soulreserve]

space-time

I wonder if we thought of each other at the same time, at one time would we feel it?

like an electric pulse an impulse coursing through the cosmos

a ripple in the fabric of the universe

could we tear through all this distance - arms outstretched eyes ablaze, and touch?

© SoulReserve 2020

[tthomusic]

Venus, Jupiter, Moon Shine from Space Station via NASA https://ift.tt/0x4QrZ6

[robreyart]

From a few years back: Looking on Lightyears Oil, 18 x 24in The deeper we look into space, the deeper we are looking back in time! Light travels an astonishing 670 million miles per hour. Yet the depths of visible space are so vast that we can see light arriving at earth now that left it's source 13.8 billion years ago, near the beginning of time (red shifted as it may be). All the light arriving from in between there and here is a history of the universe, waiting for us to learn from. We may not be able to change the past, but we can peer deep into it's chronology. Prints and original through link in bio. #redshift #spacetime #oilpainting #artwork #sciart #scienceart #spaceart #cosmos #astronomy #galaxy #telescope #deeptime https://www.instagram.com/p/CBlYISjp4ql/?igshid=xsssb1oxiwal