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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…
🔥 5.5K 👁 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…
🔥 1.2K 👁 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…
🔥 863 👁 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…
🔥 617 👁 5.1K ⬆ 19 💬 0 🔄 2 · Anonymous on Quora
5 How many years would it take to travel 2 light-years?
🔥 500 👁 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?
🔥 262 👁 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…
🔥 30 👁 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?
🔥 26 👁 199 ⬆ 2 💬 0 🔄 0 · Doug Callahan on Quora
9 What experiment confirms that gravity is indeed a deformation of space-time?
🔥 20 👁 135 ⬆ 2 💬 0 🔄 0 · Anonymous on Quora
10 Is it true that gravity pushes and doesn't pull?
🔥 8 👁 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?
🔥 2 👁 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?
🔥 1 👁 6 ⬆ 0 💬 0 🔄 0 · Anonymous on Quora

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