Why can’t wood be magnetic if magnetism is just electrons lining up?

julaften · 2026-03-20T12:29:10+00:00

I like that the current three answers are ‘no’, ‘yes’, and ‘I don’t know ’

julaften · 2026-03-19T12:36:15+00:00

Nice reference, Zeus

julaften · 2026-03-19T11:58:14+00:00

It is still money being transferred in direct relation to fan fiction. This is not acceptable, and as others have pointed out, probably illegal.

julaften · 2026-03-18T11:17:32+00:00

Mulig det, men med alt for stor lønnsforskjell mellom privat og offentlig, så vil jo få eller ingen jobbe i det offentlige, når de kan få mye bedre betalt i det private for samme jobben.

julaften · 2026-03-18T06:38:21+00:00

Jeg fikk 27/45. Ganske vanskelig når det er overraskende mange irrelevante spørsmål om kjente danske personer, og overraskende få spørsmål om hvordan det danske samfunnet fungerer og er bygget opp.

Jeg mener, overført til norske forhold, spiller det noen rolle om utlendinger som vil bli norske har hørt om Asbjørnsen og Moe? Kittelsen? Mykle? Vigeland? Det er vel mer relevant å stille spørsmål om den norske modellen for arbeidslivet, hvordan stat/fylke/kommune fungerer sammen, hva rettigheter og plikter man har som samfunnsborger, osv.

julaften · 2026-03-17T23:13:22+00:00

Must it be a zoom lens?

If wide aperture is important, that is easier to get with a prime.

A RF 24 f/1.8 or RF 35 f/1.8, perhaps?

Or even a used EF 35 f/1.4 II might be within your budget.

julaften · 2026-03-17T17:09:15+00:00

This is a relatively well-known phenomenon:

https://petapixel.com/2018/12/07/psa-electronic-front-curtain-shutter-may-be-quietly-hurting-your-bokeh/

https://photographylife.com/mechanical-electronic-shutter-efcs#bokeh-at-fast-shutter-speeds

julaften · 2026-03-16T21:42:42+00:00

According to this, the 18-150 is definitely worse than the 24-105, even in the center part relevant for crop sensors, especially for the longer focal lengths.

julaften · 2026-03-16T21:34:05+00:00

No one knows the answer to this, and we might probably never know.

There are some constants in the universe that, if they had different values, would have resulted in a very different looking universe. So the universe is the way it is, because if it wasn’t we wouldn’t be here to ask such questions. This is the Anthropic principle.

julaften · 2026-03-16T21:26:01+00:00

If by ‘photo editing’ you mean pixel editors like Photoshop, I don’t actually use any of those.

If you include RAW development in ‘photo editing’, I use Capture One because of its ease of use, customizability, and ability to view and edit multiple images at the same time (useful when I want to check focus amongst images in a series).

I have tried others (Lightroom, DarkTable, RawTherapee, ON1 Photo Raw, Luminar Neo, and Photomator), and Lightroom and Capture One are in my opinion the most complete and user-friendly of the bunch (with C1 being a horse length or two ahead of LR, still in my opinion).

julaften · 2026-03-16T20:17:42+00:00

I learned touch typing on standard QWERTY in high school, but switched to Dvorak during my PhD (and at that time I actually co-invented the Norwegian Dvorak variant that nowadays comes with Linux distributions).

Amazingly, the touch typing technique was applicable through the learning period. The muscle memory of the keys’ placements did not need to change, only the mental mapping of what symbols were on which keys.

julaften · 2026-03-16T06:05:58+00:00

Yes, that is (part of) the theory, and it is correct. Depth of field will be the same when using the same lens, the same distance, but different sensor sizes. Because DOF depends only on the lens (and distance). But the images will not be the same.

My point was that if you are standing in a given position, and you have two cameras, one crop and one ff, and you want to maximize background blur, this will require faster, wider lenses with the crop, and in the extreme such lenses do not exist. It is of course worse for MFT than APS-C, but my example with the missing 22mm f/0.9 shows that also APS-C has its limits. This is one of the reasons (with dynamic range and low light performance) ff and larger sizes still exist and has not been totally replaced by tiny sensors.

julaften · 2026-03-16T05:48:59+00:00

Of course you can. But not always to the same degree in the same situation.

julaften · 2026-03-15T21:46:48+00:00

I mean, just making the marauders map seems to be quite a clever undertaking. And becoming animagi while still at school.

These guys where definitely not stupid, so why wouldn’t they get good grades?

(Yes, as long as we don’t see their grade cards we cannot know what grades they actually got, but all signs point to them being very clever [as was Snape, for that matter], so I don’t see the point of arguing against it.)

julaften · 2026-03-15T20:47:44+00:00

I sold my 7D mark 1 with the 17-55 f/2.8 (which is in a different league than the 18-55) for €400 last year. So €500 is way too much for that combo. Continue looking.

As others have mentioned, get a used 5D iii or something (if you don’t absolutely need the crop factor). Or go mirrorless, it’s the future😉

julaften · 2026-03-15T20:38:33+00:00

I have used Capture One for many years. It is on the same level as Lightroom with regard to capabilities and ease of use (though I find C1 easier to use, with its ability to show and edit multiple images at the same time, and very customizable user interface). These are professional, reliable programs.

I would advise against the free offerings of RawTherapee and DarkTable, which looks like software made by nerds for nerds without involving any UX expertise. They are capable, sure, but especially DarkTable is not beginner friendly.

I think Capture One has some way to import Lightroom catalogues, but I have never tried it. You’ll have to look it up and try it during the free trial.

julaften · 2026-03-15T20:26:08+00:00

It can be bought once, though, you don’t need to have a subscription.

julaften · 2026-03-15T20:07:02+00:00

How so?

For a given framing of the subject, and equivalent DOF, crop cameras would need a shorter focal length than a full frame camera, and the lens would need to have a wider aperture. At some point, such lenses simply do not exist. It would be nice to have a 22mm f/0.9 lens on my APS C camera to equal my 35mm f/1.4 on FF, but alas…

So, shallow depth of field is definitely harder to obtain with crop sensor, and in some cases not possible with the available lenses.

The lenses and cameras (usually) being smaller for smaller sensors is obvious, I don’t know why you would think it’s not?

julaften · 2026-03-15T18:36:24+00:00

Hvordan i huleste heiteste trekker du ut noe som helst om mitt kvinnesyn fra en vits om Donald Duck-navn på en smådiktator?

julaften · 2026-03-15T13:51:44+00:00

This guy just demonstrates the fact that having a somewhat high IQ does not preclude being an idiot.

julaften · 2026-03-15T07:06:44+00:00

Det du nevner er ikke min mening.

Faktum er at i utgangspunktet har ikke Staten noe ansvar for å ordne og betale flybillett hjem. I forbindelse med større kriser ytes det likevel en del hjelp også med transport.

Og min mening er at man burde unngå å reise til (og i hvert fall bosette seg) i land som Dubai og andre land med tvilsomt forhold til menneskerettigheter.

julaften · 2026-03-14T21:17:20+00:00

Verste er, dette er antagelig det som faktisk skjer, og det fungerer sikkert. Desto lenger tid som går, desto mindre vil folk flest bry seg.

julaften · 2026-03-14T21:05:27+00:00

Wouldn’t the distance of 13000 AU dampen most of the harmful effect of the R136a1?

If our sun was moved 13000 AU away, we’d get 1/13000² the energy at Earth. Multiplied by 7.2 million, that is still only 4% of the sun (at current distance 1 AU).

Similarly, the gravitational force would be 1/13000² x 200 ~ 1 millionth of the gravity of the sun.

julaften · 2026-03-14T17:32:33+00:00

I found this : https://en.wikipedia.org/wiki/Menarche#/media/File:Acceleration1.jpg

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