The h Bar

ZeroTheHero

12:43 AM

@PM2Ring if you wanna go that kind of bluesy you gotta go with Robben Ford.

Robben Ford - Chevrolet (Studio Version)

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Arjun

2:42 AM

Hey guys!

Could someone help me out with a little conceptual question? It's this: Electric potential difference in a simple circuit gives rise to an electric vector field, which, in turn, 'drives' electric current. But, surely, this electric field is not uniform. So, why is electric current (which is a measure of how fast the charge is moving, I guess) constant throughout the circuit?

Johan Liebert

16

Q: Why doesn't the electric field inside a wire in a circuit fall off with distance from the battery?

We studied electric fields due to point charges. The magnitude of these fields decreases with the square of the distance from the point charge. It seems to me that we could treat the positive terminal of a battery as a point charge. So, I would conclude that the magnitude of the electric field s...

@Arjun

Arjun

3:07 AM

@JohanLiebert Thanks! This had been bugging me for quite a few days!

user8718165

5:12 AM

hello sir :-) @dmckee---ex-moderatorkitten After so long :)

dmckee --- ex-moderator kitten

In an effort to provide some kind of continuity for those who asked, I've started a blog just so there is a place to get me on the internet.

8

After all, it would be gauche to just provide a link to the one of the various "replace stack exchange" efforts that I'm currently looking at...

@user8718165 I'm not back in any substantive sense—just leaving a trail of breadcrumbs—but hello to you as well.

For those who might be wondering, it only take about a week for the twitching need to answer questions on the site to fade.

user8718165

@dmckee---ex-moderatorkitten Hope you are happy and doing well. Really, I never expected to see you leave like that all of a sudden. ::sad::

vzn

6:05 AM

@dmckee---ex-moderatorkitten lol "toddler thermodynamics," hilarious. yeah know the feeling, wish there were "solid" alternatives to most major social media sites eg SE, facebook, reddit, wikipedia etc. user generated content is both very valuable and oft-mistreated at the same time. :(

Novalium Company

6:29 AM

@PM2Ring Flipboard, Medium?

How do people expect NLP to work properly without giving the AI eyes and ears so it can make the proper associations and not just play with letters.

David Z

6:45 AM

A lot of people probably haven't really thought it through

but in general people seem to lean more toward limiting an AI's power as opposed to giving it access to huge amounts of information about their daily lives

Novalium Company

7:37 AM

@DavidZ That limitation is what prevents the AI from working properly. If they really want AI that "understands", they need to supply it with visual and auditory data so when it reads "car", it knows what it actually looks like. It's like putting a new born child in a dark chamber and trying to raise it properly by only giving it text to read.

Slereah

8:02 AM

morning

That Battelles Rencontres book is a pretty nice book

It was basically a state of the art conference on theoretical physics

it has a lot of introduction of important concepts

bolbteppa

9:03 AM

What are the highlights

Slereah

It's a very miscellaneous sort of book

Lie groups, PDEs on manifolds, spacetime stuff, cosmology, quantum gravity, Everett interpretation, renormalization, perturbation theory, just random differential geometry presentations