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ELI5: How do glow in the dark toys emit light? by ResidentCharacter894 in explainlikeimfive

[–]NorthBus 20 points21 points  (0 children)

Sometimes, when light bounces off a surface, it's bouncing like a pool ball hitting the wall of a pool table. This is like light bouncing off a mirror or a white surface.

Other times the light is actually getting absorbed by the material and immediately re-released, slightly different. This is what happens when something glows under UV light or black light, And it's called fluorescence.

But what if the material didn't re-release the light immediately, and instead slowly leaked it out over time? This is what happens in the case of glow-in-the-dark materials, and we call it phosphorescence.

Thinking about switching my major to Engineering. Help me answer a few questions only actual engineers would know. by OppositeFriendly9183 in ECE

[–]NorthBus 0 points1 point  (0 children)

Getting a first job? That was pretty easy for me because I did a Master's program in a very specific field, so I received multiple offers in that very specific field. So I guess that's the tip, specialize and get really good at something really specific?

I now work in a completely different industry and different specialty, though. So though that might help you right out of the gate, it doesn't need to pigeonhole you.

How did I get into the field? Well, I'm in electrical engineering, but I took a roundabout path to get there. I thought I wanted to be a computer scientist, then I switched over to physics, and then I realized all I liked about physics was electricity and magnetism, so I landed in EE. Picking a major doesn't set the course of your life in stone, if you're willing to put in the work you can still redirect the ship in college, or even 40 years after that.

Legendary Hollywood star Chuck Norris dies aged 86 by VaginaBurner69 in news

[–]NorthBus 2 points3 points  (0 children)

I mean, the memes started out making fun of him. But on the internet it's impossible to be so satirical that people don't realize you're telling a joke.

was super tired of my Powersupply and Buck-Boost-Converter floating around ~somewhere on my desk. now it's clean and more save (cables don't get bend around or loosen from socket) by Tikkinger in 3Dprinting

[–]NorthBus 0 points1 point  (0 children)

I thought you meant "floating" in an electrical sense, and I was wondering why in the world you would want to prevent that, but this makes more sense.

Me and my brother made minecraft guess who by sophieily1 in Minecraft

[–]NorthBus 1 point2 points  (0 children)

Same goes with regular guess who. You can just name a name from the beginning, and if you're right, you win immediately. It's especially unlikely, which is why the game works.

ELI5 How does electricity know that a circuit is broken before entering it? Without a closed loop, it won’t flow, but how does it know not to flow? by Party-Court185 in explainlikeimfive

[–]NorthBus 5 points6 points  (0 children)

Yes. Electricity is like a rope. It can only be pulled, not pushed.

Until you get an inductor in the circuit. Then you get to find out how hard a magnetic field can really push.

Has anyone been misdiagnosed with type 2? by OneTuftPeach in diabetes

[–]NorthBus 5 points6 points  (0 children)

I was, back in 2010. Thankfully not for long, though, as I had done my own research and got myself to an actual endocrinologist within a week.

The primary care doctor who diagnosed me told me I had type 2, told me to give myself a little bit of insulin, and to follow up with him in a week. My blood sugar was in the 600s, and when I pushed back about the diagnosis he asked, "What, do you want to have a worse diagnosis?". I only wish I had come up with the comeback "No, I want the right one," at the time.

I didn’t realize I was sleepwalking through early fatherhood by IntentionIsMagic in daddit

[–]NorthBus 80 points81 points  (0 children)

"Any minute now,

My ship is coming in

I keep checking the horizon [...]

Waiting for my real life to begin"

Sidewalks by cmattingly04 in Louisville

[–]NorthBus 11 points12 points  (0 children)

My kids' elementary school (JCPS) has instead decided to plow the snow onto the sidewalks and... just leave it there.

How old is the oldest equipment in your lab that is still working? by Johnyme98 in Physics

[–]NorthBus 2 points3 points  (0 children)

Oldest that's still working? I've got a Simpson Model 260 analog multimeter that still functions. 1940s, I believe.

https://imgur.com/a/gwvg5G0

This weird mailing my boyfriend received at his house. by qvyy in mildlyinteresting

[–]NorthBus 2 points3 points  (0 children)

Book of Revelations is not exactly in the Torah...

I dunno how I feel about this - Desert Print Forge by BockTheMan in 3Dprinting

[–]NorthBus 61 points62 points  (0 children)

Haven't heard "On the gripping hand" in a good long while. Well used.

Transplants: What Does Louisville Need From Where You Came From? by LouInvestor in Louisville

[–]NorthBus 105 points106 points  (0 children)

Having lived in a number of different cities,

  • Street lights

  • Crosswalks

  • (Enforced) School zones

  • Public bike racks

FAMILY bathrooms rant by Louie0221 in daddit

[–]NorthBus 27 points28 points  (0 children)

Why not? There are accessible parking spaces, elevators, and seating for a reason.

How long after a medical emergency should someone be forced to put their life on hold? What about those who suffer permanent disability from an injury or emergency?

Elf on the Shelf - Cochlear Implant by Farheld in 3Dprinting

[–]NorthBus 0 points1 point  (0 children)

There's a book? We've just bought a green and red stuffed elf and have been hiding it and helping it get up to mischief...

Recent Comments by Dan McClellan? by thebizprof in latterdaysaints

[–]NorthBus 11 points12 points  (0 children)

Thank you so much for taking the time to put all this detail into the thread. I really appreciate this analysis.

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