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Total solar eclipse 2024: Everything you need to know!
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Greenlight
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Apr 1, 2022
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Greenlight
replied to the thread
How does relativity "break down" near event horizons?
.
is there any indication that Einstein even believed in singularities? Is it his theory of relativity, or the singularity theory that...
Mar 21, 2024
Greenlight
posted the thread
How does relativity "break down" near event horizons?
in
Cosmology
.
I often hear this but it clashes with my understanding of relativity. Can someone explain how relativity "breaks down" at the event...
Mar 20, 2024
Greenlight
replied to the thread
My head hurts thinking about this.
.
if the space part of space/time were expanding then it took those distant planets 13 billion years to get to where they are relative to...
Mar 20, 2024
Greenlight
posted the thread
Question
Why is the horizon of the observable universe?
in
Cosmology
.
Is it because we see back in time to before stars formed and thus there is no more stars beyond that point? or is it because space is...
Mar 6, 2024
Greenlight
posted the thread
Changing my Light cone.
in
Cosmology
.
Light Cone a surface in space-time, represented as a cone in three dimensions, comprising all the points from which a light signal...
Feb 21, 2024
Greenlight
reacted to
Atlan0001's post
in the thread
Question
Hubble's Law
with
Like
.
Thanks to the speed of light, 'c', space is not observable . . . and neither are travelers (outer-space travelers included). Only time...
Feb 21, 2024
Greenlight
replied to the thread
Question
will we ever be able to go in a different galaxy?
.
depends on what you mean by "we" are "we" still human after we evolve for a few million years?
Feb 8, 2024
Greenlight
replied to the thread
Question
Is Gravitational time dilation due to gravity?
.
I think i would measure both ends at the same RPM. and if someone was near the Sun they would measure both ends to be the same but...
Feb 5, 2024
Greenlight
replied to the thread
Question
Is Gravitational time dilation due to gravity?
.
i guess im caught up on the "Anyone at any location would see their area perfectly straight." after a million years there will be 60...
Feb 5, 2024
Greenlight
replied to the thread
Question
Is Gravitational time dilation due to gravity?
.
lets point the rod at the Sun the time dilation is ~1 min per year at the surface of the sun. lets say i rotate the shaft at 60 rpm...
Feb 5, 2024
Greenlight
replied to the thread
Question
Is Gravitational time dilation due to gravity?
.
i can't seem to wrap my head around that. if after one day the top has turned 360 degrees and the bottom 359 degreees after a year the...
Feb 1, 2024
Greenlight
replied to the thread
Question
Is Gravitational time dilation due to gravity?
.
if in a day it appears to twist by a degree, but in a year that time dilation would add up to a full circle. would it break? or would...
Feb 1, 2024
Greenlight
replied to the thread
Question
Is Gravitational time dilation due to gravity?
.
A day is a day whether you are at the top of everest or at the bottom. (earth is your spinning rod) but a second is defined...
Feb 1, 2024
Greenlight
posted the thread
Question
Is Gravitational time dilation due to gravity?
in
Astronomy
.
In the center of the earth, the force due to the upper half of the Earth cancels the force due to the lower half at the center of the...
Jan 31, 2024
Greenlight
replied to the thread
Time vs Space
.
I think Black holes tell us that space exists even when time crawls to a stop.
Jan 24, 2024
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