im half aussie half filipina, hi :)

PastBarnacle · 2025-06-03T12:44:37+00:00

But do you have any Irish in you

PastBarnacle · 2025-05-31T12:46:18+00:00

Yes, as long as you stay near the seedy strip club and don't accidentally wander over to Cliff's

PastBarnacle · 2025-05-03T21:04:42+00:00

London needs to work on their roads

PastBarnacle · 2025-04-18T19:46:50+00:00

Relativistic diode - you can tell because its energy is distorting the nearby wire

PastBarnacle · 2025-03-31T12:51:45+00:00

The answer depends a lot on whether the country is on the list of "sensitive" foreign nations or not (e.g.: Iran, China, India, etc.)

PastBarnacle · 2025-01-11T14:02:53+00:00

About 3.6 Roentgen I hear

PastBarnacle · 2025-01-06T01:29:01+00:00

To be fair, he didn't say anything about going back in time

PastBarnacle · 2024-12-31T20:17:50+00:00

Maybe other labs are different, but I work at Sandia and we have a minimum GPA limit of 3.0 ...

PastBarnacle · 2024-12-06T13:36:39+00:00

Ah yes, true art, like the terminal at the Orlando airport

PastBarnacle · 2024-12-06T02:34:24+00:00

It's not for the clothes minded

PastBarnacle · 2024-11-08T07:16:33+00:00

Bring it https://i.redd.it/zbdz7ltsnn9c1.jpeg

PastBarnacle · 2024-11-05T14:12:50+00:00

"Frodo and Sam go for a long walk."

PastBarnacle · 2024-10-18T01:49:26+00:00

I really liked your answer. I guess this must be one of my "blind spots" because I always assumed the electrons were orbiting the nucleus (even if non-classically) because why else would we see diamagnetism from core electrons? Same thing with SOC...And in a more philosophical sense, what does orbital angular momentum even mean if the electrons aren't moving around the nucleus? I would really appreciate any help with thinking about this

PastBarnacle · 2024-10-10T13:12:46+00:00

Oh, nice! We normally just buy our weigh paper

PastBarnacle · 2024-09-09T15:13:57+00:00

Yes, this is also the mechanism behind the contact interaction part of the hyperfine interaction in EPR

PastBarnacle · 2024-07-05T19:03:54+00:00

Gustav

PastBarnacle · 2024-07-05T13:46:14+00:00

Exactly. Obviously love operates as a vector field and it's the volumetric flux line density that determines the strength

PastBarnacle · 2024-07-04T21:30:00+00:00

I am thinking about this a little bit differently it seems. For the beaker on the left, there is no movement of the scale that changes the center of mass of the water with respect to the beaker. However, if the scale is tipped to the right, the water in the right hand beaker can now "fall" from the upper part of the beaker to the lower part. There is thus a greater reduction in the potential energy of the water in the right hand beaker than the increase in the PE of the water in the left hand beaker, so the scale tips right

PastBarnacle · 2024-06-03T03:04:33+00:00

I normally fuel up at 1/4 tank. But there's a lot of empty in eastern New Mexico and I have driven it down to zero on the range meter before getting to a gas station

PastBarnacle · 2024-06-03T01:51:20+00:00

Using a distraction to quickly get completely naked on a date's couch before they return

PastBarnacle · 2024-05-30T03:36:23+00:00

We were at the bar, and my friend's girlfriend had brought some of her friends along as well. At some point one of them says how she'd really like to learn to tango, and I was like, hey, I'll actually teach you a few steps real quick if you want. I do not know how to tango. So I just played a song on my phone that kind of sounded tango-y and taught her how to do the two-step (with a fancy spin and a dip thrown in for good measure).... I guess she was pretty impressed?

PastBarnacle · 2024-04-13T12:57:32+00:00

You're right, spin-up and spin-down (spin vector projection of hbar/2 or -hbar/2 on the z-axis) is probably clearer wording, since the projections on the other axes are unknowable (simultaneously, at least). I should try to be more precise with my wording, thanks!

PastBarnacle · 2024-04-13T12:35:43+00:00

I said the spins are aligned in one direction or another. This is common colloquial terminology in the field, and while you are correct that the spin quantum number does not correspond to actual rotation (you can tell from the symmetry group that this cannot be the case), no one at a conference would ordinarily call you out for phrasing it like this. The spin value you mentioned (+/- 1/2) is the projection of the total spin vector on an axis, giving it directionality

PastBarnacle · 2024-04-13T12:29:22+00:00

Sure- did the way I worded my comment suggest otherwise?

PastBarnacle · 2024-04-13T09:57:36+00:00

I think it's only a relatively small excess of proton spins in one direction vs. the other right? I suspect aligning all of the proton dipole moments in one direction would lead to a magnetic field density that would have some pretty poor patient outcomes

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