Most viral Spacetime questions on Quora
Ranked by real engagement we track — views, upvotes, comments and shares per question. Updated continuously.
12Questions tracked
47.6KTotal views
1.1KTotal upvotes
8.9KVirality score
1
Why do astrophysicists explain Einstein’s gravity with nonsensical animations of space bending if spacetime is not tangible?
Because the alternative is to not describe it at all? General Relativity is a mathematical theory. It is a four dimensional theory about curved manifolds, an…
👁 24.1K
⬆ 859
💬 45
🔄 1
· Anonymous on Quora
2
Photons, from their point of view, travel instantly. So how could a photon from a Galaxy 14 billion light years away "instantly" hit the Earth, which didn't exist 14 billion years ago?
A photon doesn't wait 14 billion years for Earth to form. From its perspective, its creation in a distant galaxy and its crash into Earth occur at the exact…
👁 7.4K
⬆ 86
💬 11
🔄 2
· Anonymous on Quora
3
If space and time are inextricably connected, how could the universe inflate/expand faster than the speed of light without time moving in reverse?
The question is based on a false assumption, one that I encounter with alarming regularity: that faster-than-light always means moving backwards in time. Rep…
👁 5K
⬆ 96
💬 0
🔄 3
· Anonymous on Quora
4
How much time has elapsed on Earth if I travel to a planet 12 billion light years away through a wormhole?
There are a few issues with this whole question:How long does it take to traverse the wormhole?Is it possible to traverse a wormhole? Hawking postulated that…
👁 5.1K
⬆ 19
💬 0
🔄 2
· Anonymous on Quora
5
How many years would it take to travel 2 light-years?
👁 3.2K
⬆ 35
💬 0
🔄 3
· Anonymous on Quora
6
What is the fundamental reason of the speed of light being constant in all frames of reference?
👁 2.2K
⬆ 14
💬 0
🔄 0
· Anonymous on Quora
7
Is it possible for only one side of a wormhole to exist without the other side existing at all, even theoretically?
Remove one side of a theoretical wormhole, and the math doesn't actually break. The cosmic bridge simply turns into a deep, inescapable pit: a standard black…
👁 181
⬆ 4
💬 0
🔄 0
· Anonymous on Quora
8
If we send an astronaut on a trip at near light speed wearing a mechanical watch, will Lorentz-Fitzgerald contraction stop the watch due to distortion of the cogwheels?
👁 199
⬆ 2
💬 0
🔄 0
· Doug Callahan on Quora
9
What experiment confirms that gravity is indeed a deformation of space-time?
👁 135
⬆ 2
💬 0
🔄 0
· Anonymous on Quora
10
Is it true that gravity pushes and doesn't pull?
👁 79
⬆ 0
💬 0
🔄 0
· LIGHTYEAR on Quora
11
If space is curved due to the Earth's mass, why do objects near the Earth fall down in a straight line, rather than following a curve?
👁 19
⬆ 0
💬 0
🔄 0
· Clarence Wong on Quora
12
Why does the Gödel universe's ability to create time-like loops challenge our understanding of time in General relativity?
👁 6
⬆ 0
💬 0
🔄 0
· Anonymous on Quora
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