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Kaleva

(40,365 posts)

26. The greater the speed, the greater the mass and thus more energy is required to move you.

Sat Jan 1, 2022, 04:30 AM

Jan 2022

Thus it'd be pretty much impossible for anything with even the slightest amount of mass to be able to travel anywhere near the speed of light because of the energy needed to reach such speeds. Light has no mass and always travels at the speed of light.

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Is the universe expanding faster than the speed of light?... But where to? [View all] keithbvadu2 Dec 2021 OP

Last I heard it now appears different parts are expanding at different speeds pecosbob Dec 2021 #1

The observable universe has a diameter of 93 billion light years Kaleva Dec 2021 #2

Maybe WHITT Dec 2021 #4

Not with any telescope. Disaffected Dec 2021 #15

If it's observably that big, how much bigger must it actually be at this moment? Frasier Balzov Dec 2021 #10

It's like a balloon being blown up. So there is not really a "where" that it is expanding to Bernardo de La Paz Dec 2021 #3

This is the dawning of the... Iggo Dec 2021 #20

I hope it expands into my basement Effete Snob Dec 2021 #5

It seems to me that the only answer to that question is Haggard Celine Dec 2021 #6

There's always that balloon. The expanding universe is just that... TreasonousBastard Dec 2021 #13

I can accept the balloon theory. I'll probably never hear a better explanation. Haggard Celine Dec 2021 #14

It's not a theory Bernardo de La Paz Jan 2022 #28

Okay, I'll accept the analogy for $1.25. Haggard Celine Jan 2022 #29

Post removed Post removed Jan 2022 #27

Nobody is smart enough to explain it better. While the balloon illustrates how things move apart... TreasonousBastard Jan 2022 #30

They aren't moving into anything. That's the point. . . . .nt Bernardo de La Paz Jan 2022 #31

I'm not so sure. Motion implies going somewhere-- where is that somewhere? TreasonousBastard Jan 2022 #33

It's both. ForgedCrank Jan 2022 #36

Infinity Deuxcents Dec 2021 #7

to Infinity... and beyond!!! lapfog_1 Dec 2021 #8

I believe a giant uterus Uncle Joe Dec 2021 #9

The key SNAFU is that gigantic three letter word 'all'. keithbvadu2 Dec 2021 #11

If the universe were a fetus Uncle Joe Jan 2022 #25

Speed is a function of space and time. As you go "faster"... TreasonousBastard Dec 2021 #12

It's expanding into Disaffected Dec 2021 #16

There is no "where to". The fabric of space itself is expanding. tinrobot Dec 2021 #17

Yes. These loopholes still come back to the word 'all'. keithbvadu2 Dec 2021 #19

Tough concept. Scientists are still trying to determine the meaning of "all" tinrobot Dec 2021 #21

Yep. Indeed that is correct (from my understanding). The question of what it's expanding into is triron Jan 2022 #38

To Hell in a hand basket. nt woodsprite Dec 2021 #18

The speed of causality (c), or the speed of light... Buckeye_Democrat Dec 2021 #22

Our universe is but one bubble in a foam.... A HERETIC I AM Dec 2021 #23

Or the bubbles could be 'evolving' , but toward what? triron Jan 2022 #39

Or maybe they just 'pop' in a random way, just like the foam made by your dish soap. A HERETIC I AM Jan 2022 #40

I heard one physicist... Septua Jan 2022 #24

The greater the speed, the greater the mass and thus more energy is required to move you. Kaleva Jan 2022 #26

That's a tough one to explain. But, then, much of things about MineralMan Jan 2022 #32

there are books with some insight into the theories of what the universe is "expanding into" Takket Jan 2022 #34

Theories keithbvadu2 Jan 2022 #35

Another great one from Harris; A HERETIC I AM Jan 2022 #41

The universe has been expanding from the beginning of the big bang or whatever. marie999 Jan 2022 #37