So, I'm writing an SCP that involves gravity wells. What could in theory produce a gravity well from 1m/s² to 3m/s² for a very brief period (less than one second)?

As far as established physics goes, nothing can do this.

I'll start with the pure equations stuff.

The equation to determine the strength of a gravity field is:

$a_{g} = \frac{\textstyle GM}{\textstyle r^{2}}$

- a
_{g}= apparent acceleration from gravity - G = 6.6726 x 10
^{-11}$\frac{\mathrm{N\cdot m^2}}{\mathrm{kg}^2}$ (The gravitational constant) - M = mass of an object considered independently from everything else
- r = distance from the object (aka radius of the field at that point)

Solving for M, that becomes:

$M = \frac {\textstyle a_{g}r^{2}}{\textstyle G}$

To get an acceleration of 3${\frac{\mathrm m}{\mathrm s^2}}$ at a range of 1 m, you'd need to briefly create the equivalent of a singularity with a mass of:

$\frac{{\textstyle 3\frac{\mathrm m}{\mathrm s^2}}\cdot{\textstyle 1 {\mathrm m}^{2}}}{\textstyle 6.6726 \cdot 10^{-11}\frac{\mathrm{N\cdot m^2}}{\mathrm{kg}^2}} = 45 \mathrm{Tg} = 45\cdot10^9\mathrm{kg}$

Magnitiude matters quite a bit, though, since the falloff is exponential. If you want to achieve that same 3${\frac{\mathrm m}{\mathrm s^2}}$ at a range of only 1 centimeter, it goes down to a mere 4.5Gg, and you can get it down to about 4.50 kg at a range of 0.01 mm. For 1${\frac{\mathrm m}{\mathrm s^2}}$, the numbers are 15 Tg at 1 m, 15Gg at 1 cm, and 1.5 kg at 0.01 mm.

Now like I said, as far as established physics goes, nothing can generate artificial gravity. You can simulate it with things like centripetal force, but nothing we know of creates actual gravity but mass.

Delving into the more exotic and speculative, however, gravitomagnetism is an unusual phenomenon of the "How to make a room full of physicists get into an argument" variety. When you have something really massive (like a planet) that spins, it creates acceleration forces that look a whole lot like the gravity equivalent of a magnetic field. The effect has been observed experimentally, but exactly what's going on in the mechanical sense remains an open question.

Still with me? Okay, now thanks to mass and energy basically being the same thing when the numbers get really big or really small, there's a point where "moderate mass spinning insanely fast" and "insane mass spinning moderately fast" become really hard to tell apart. Combine this with the gravitomagnetism thing and gravity starts getting really, really weird. We're still talking about tiny effects on cosmic scales or in extreme conditions, though. But there's *something* interesting happening there.

This is the point where we get into the realm of zero point energy and EM drives, so take anything past here with a grain of salt:

One theory is that the similarity between magnetism and gravity is not just an interesting parallel, but evidence that gravity and magnetism relate in the same way as magnetism and electricity- they're ultimately different aspects of the same force. So the idea goes that if you take a really, really strong magnet and spin it really, really fast, you might get something very gravity-like.

There are a couple of groups tinkering with this idea, but the best results so far are of the "…maybe?" variety.

Getting even more out there, gravity as best we can tell is basically _{sound of physicists arguing} screwing with the shape of the metaphorical grid in space. There's a crudload of other factors those physists are arguing about, but that's one main thing we *do* have pretty good handle on- gravity basically works for the same reason your soda falls over when you set it on the couch and then sit down without thinking- it just happens in a direction we don't have access to. So if you have a literal sort of reality bender, they could in theory skip the whole mass part and warp space so that the metaphorical couch is depressed without anyone sitting on it.

(On a side note, this is basically how an Alcubierre Drive would work.)

Thanks, it really helped me understand more about gravity.

Anyway, supposing an anomaly generates gravitons in clusters randomly around it, what would be the magnitude of the gravitons needed to generate a gravity well as I described earlier?

What does magnitude mean in regards to gauge bosons?

The quantity, I guess. I'm not well versed in physics, sorry.

I don't think that question can be answered without knowing the graviton energy, which as far as I know is an unsolved problem in physics.

If you are thinking about having gravitons leaking across branes into Earth's orbit, note that we already have an article that is something like this: SCP-2460.

I already read SCP-2460 and it's probably my favourite article so far.

Anyway, I'll probably use the reality bender angle, it's easier to understand, both for me and for the readers.