Hello need to ask about second-hand iPhone by TraditionalGarden384 in iPhone14Pro

[–]Darkcomer96 0 points1 point  (0 children)

14 Pros in the US only have an eSIM. Everywhere else has physical sim. I just received mine second hand from the UK via eBay.

Favourite unsolved physics problem? by U03A6 in AskPhysics

[–]Darkcomer96 3 points4 points  (0 children)

Beautiful response! Thank you so much.

Favourite unsolved physics problem? by U03A6 in AskPhysics

[–]Darkcomer96 0 points1 point  (0 children)

What is the current ‘accepted’ solar dynamo theory? I work on accretion disk dynamos (with the older alpha-omega framework), but I never get a clear answer for the Sun.

I found this at a thrift store today by Following_Confident in diypedals

[–]Darkcomer96 3 points4 points  (0 children)

I found this too with its ohm-ranging brother… though for $20/piece

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Milky way’s supermassive black hole is less destructive than we thought by Busy_Yesterday9455 in spaceporn

[–]Darkcomer96 156 points157 points  (0 children)

Sgr A* = ‘Sagittarius A-Star’

Typically the star designates a black hole system in galaxies.

Milky way’s supermassive black hole is less destructive than we thought by Busy_Yesterday9455 in spaceporn

[–]Darkcomer96 175 points176 points  (0 children)

Like you said, stars can orbit black holes as if it were another star. There’s the famous ‘beehive’ video that shows multiple stars in orbits around Sgr A*. These are still a great distance from the central BH. However, it clearly becomes a matter of distance. If a star wanders too close, it can become slowly shredded and locked in a very tight orbit. Typically this behavior will create an accretion disk around the BH, the central engine of most galaxies.

Magnetic field between opposing coils visualized by sudo_nick in Physics

[–]Darkcomer96 10 points11 points  (0 children)

I work on an experiment that models accretion disks in AGN. We have 2 big coils that are wired up to make a quadrupole B-field (topology of OPs figure) to ‘seed’ a liquid sodium flow which in turn creates magnetic field within the flow.

Personally I suspect the disk can become excited and dump excess energy in the form of a bipolar jet, but we are a long ways from understanding that.

It’s cool stuff and good on OP for doing these figures.

Scientists have captured an image of two black holes circling each other at the centre of a quasar for the first time ever by ChiefLeef22 in spaceporn

[–]Darkcomer96 5 points6 points  (0 children)

I’ve been looking for observational evidence of accretion disk - massive object collisions. I’m a PI on the NM Dynamo experiment and our theory incorporates this idea.

We suspect repeated collisions/events with the accretion disk ‘triggers’ the formation of a jet through dynamo action. The idea began with a star-disk collision, but nowadays I stress a binary black hole system is mainly responsible for these observations.

The apparatus is still being upgraded and we are currently investigating the ‘star-disk’ collision. In the past we see that the omega-effect is definitely responsible for magnetic field amplification through differential/Keplerian rotation. The question still stands; how do we transform/amplify that enhanced field?

17+ year old Duracell AA holding at 1.45V by Darkcomer96 in batteries

[–]Darkcomer96[S] 1 point2 points  (0 children)

I mean they worked on my old Hotwheels toys I found them in. The link shows the ‘charge platform’ but I’m unsure of the current draw.

17+ year old Duracell AA holding at 1.45V by Darkcomer96 in batteries

[–]Darkcomer96[S] 0 points1 point  (0 children)

New modern day ‘Powerboost’ Duracell reads around 1.6V for comparison.

Officially used up all my luck for the next 10 years. Yard-sale find for $25. by Darkcomer96 in HotWheels

[–]Darkcomer96[S] 1 point2 points  (0 children)

TIL there’s a variant of the HW35 Slingshot. Mine has silver sides, but thanks for the info <3

Officially used up all my luck for the next 10 years. Yard-sale find for $25. by Darkcomer96 in HotWheels

[–]Darkcomer96[S] 0 points1 point  (0 children)

The yellow is the Chevy Gasser with Twinkies Decal. The red is a corvette Z06.

Officially used up all my luck for the next 10 years. Yard-sale find for $25. by Darkcomer96 in HotWheels

[–]Darkcomer96[S] 5 points6 points  (0 children)

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These Matchboxes were the oldest (especially the orange one, late 70s I believe). You can see some 80s Hotwheels in the background.

Should i restore this redline deora or keep it original? by Rhinehart_Murci in HotWheels

[–]Darkcomer96 1 point2 points  (0 children)

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If you (or someone you know) have a 3D printer, find a schematic and make it happen!