mfb-

mfb- t1_jefh2nx wrote

I'm not sure how you got the dipole moment. The uniform component of Earth's magnetic field is only changing the energy of the arrangement, the force comes from the inhomogeneity. As an order of magnitude estimate, the force will be F = B_1 V B_E / (R_E mu_0) with B_1 and B_E being the two magnetic fields, V being the volume of the steel block and R_E being the radius of Earth (as scale of the variation of Earth's magnetic field). mu_0 is the vacuum permeability. Coincidentally, it's comparable to the number you got, 10^(-5) N.

If we don't divide by the radius of Earth we get a (sort of) potential energy, which is tens of joule. Completely negligible compared to hundreds of gigajoule of kinetic energy.

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mfb- t1_jedjlbs wrote

Any binocular worth spending money on will give you a magnification of a factor 2 even with 20/10 vision, so better vision without binoculars transfers to better vision with one. With the caveat that using binoculars and glasses together can be tricky, but that's not specific to the ideal vision strength. A really cheap binocular might be worse.

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mfb- t1_je8wf3w wrote

Permanent magnets have a saturation magnetization. Trying to apply stronger fields doesn't magnetize the material more, and if you drop the external field then the field of the magnet decreases, too. In practice you get around 1.3 T for neodymium magnets, theoretical values might be slightly higher. This publication calculates 1.32 to 1.38 T.

The size of the magnet doesn't matter, you just scale up everything linearly in space and the field gets larger but not stronger.

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mfb- t1_je89fs0 wrote

> What I'm asking is whether or not it is possible that there is a form of energy so far undiscovered [...] that can travel faster than light.

That is possible, but it looks very unlikely. And it's not related to entanglement.

> that registers at a quark or subquark level

That part doesn't make sense.

> Light is the current known standard by which to measure speed, but photons are comprised of "bundles" in the electromagnetic field being transferred super fast from one point in the field to another point in the field.

No, the speed of causality is a far more fundamental concept. Light travels at that speed, and we call it "speed of light" for historical reasons, but the speed limit is much more general than light.

> "The field" itself is what I would like to know more about and understand its role in energy transfer.

The electromagnetic field? That's again not a question about entanglement.

> Quarks are theoretical and considered so bc there isnt concrete physical evidence for them

Are you commenting from the 1950s? That's a time where such a statement would have been reasonable. We have studied quarks routinely for decades now.

> its entirely possible that there are even smaller units than quarks that are undetectable due to limits in current technology.

That's unlikely but we cannot fully rule it out. But again, this has nothing to do with anything else in your comment.

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mfb- t1_je7pt7h wrote

JWST doesn't measure in the wavelength range of the CMB, so I'm not sure what you heard but it doesn't sound right. Here are three things that might be related:

JWST needed about half a year from launch to the first science images. That time was spent unfolding the telescope (~1 month) and calibrating it and its instruments.

JWST can only observe targets in a ring around the Sun/Earth direction, in the worst case you need to wait almost half a year until your target is in view.

[Planck](https://en.wikipedia.org/wiki/Planck_(spacecraft)) needed ~9 month to make a full-sky map of the CMB in 2009-2010 based on the way it scanned the sky and again the issue that you cannot measure too close to the Sun.

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mfb- t1_je5caed wrote

> Clearly you don't have two angles to do this

For nearby stars you do. You measure their position in the sky, and then you measure again 6 months later when Earth is on the opposite side of the Sun. Twice the Sun/Earth distance is a short baseline compared to the distance to stars but angle measurements are precise. Stars move relative to the Sun so you need at least three measurements, and in practice you try to get even more to reduce uncertainties.

That method works up to ~10,000 light years or so (with a somewhat lower precision for distances beyond that). For stars farther away you use the cosmic distance ladder, which uses stars with well-known behavior nearby to determine the distance of equivalent stars farther away. Objects next to these can then be used to estimate the distance of even farther objects with the same method.

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mfb- t1_je5bjqa wrote

That's the natural arrangement of a system with non-zero angular momentum where objects collide with each over time: A disk is the configuration you get after everything not in the disk collided with other particles. Planetary rings are pretty flat for the same reason: Here is a video explaining the concept.

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mfb- t1_je5b6p6 wrote

> Does an atom displace spacetime?

No.

> Is spacetime between the nucleus and the electrons?

There is space between them, i.e. they have some distance to each other (ignoring some technical details from quantum mechanics). That applies to all times, so you could say that there is "spacetime between them", but I don't think that's a useful way to view it. The same applies to all extended objects, including nuclei.

> Or is spacetime right beside me when I'm sitting in my living room?

Is "beside you" a place? Yes. That's part of space, which is a part of spacetime.

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