The h Bar

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Brandon Enright

01:38

Huh I posted a question over at Mathematics.SE and got an upvote in about 3 seconds. It's been about 5 minutes now and I haven't gotten another upvote. Almost seems like bot-activity.

2 hours later…

ManishEarth

03:08

Nah, mma has active voters

Kyle Kanos

5 hours later…

user54412

07:56

@dmckee I have to ask, have you ever gotten a lab report like this?

ManishEarth

09:13

@ChrisWhite LOL

jinawee

Do we really want the [food] tag?

David Z

09:58

@BrandonEnright ed.fnal.gov/projects/scientists

4 hours later…

dmckee

14:02

@ChrisWhite Now that's funny. And it is certainly true that something involved in that is rubbish.

I've haven't yet lead an advanced lab where that might be an issue, but when I do ... well, much of our kit is rubbish too.

dmckee

14:39

@DavidZ I recognize at least one of the "after" drawings. Bonnie Flemming is a ferociously able scientist. And another one might be Cat Stevens, though it is less obvious.

1 hour later…

Kyle Kanos

16:09

@dmckee: Was what I said in the Q about speed of sound construed as a personal attack, or was it the OP's comments?

dmckee

@KyleKanos It was comments. They were general accusations rather than aimed at a particular user, but totally unacceptable.

I don't know why people think that asking people for help and call them names is a productive thing to do.

I'd've deleted the question and destroyed the user (the OP) except that it would have taken some rep from other users.

Kyle Kanos

I was about to type up a comment that calling people cowards for not answering won't get many people wanting to help him, but then he got 2 or 3 answers. Would've seemed out of touch to post that then

dmckee

16:24

You are fine, but deleting just the OP's comments would (1) have left a fractured conversation and (2) made it possible to reconstruct the OP's comment when I was trying to head off bad feelings.

I feel so touchy-feely saying things like that.

Policy is not to call anyone out in public if we can help it, so I didn't say who I was directing my comment towards.

Kyle Kanos

I've got no problems with my comments being deleted. I was just curious to see if OP had replied to my last comment and saw they were all deleted. Just wanted to make sure I wasn't going to get another mod email

dmckee

He had not replied, and no fear about a mod message. I'm not sure that engaging that user was productive but you were well within the bounds.

Brandon Enright

17:11

I finally got the Steward badge for first post reviews. Now I can feel a deep depression coming on as I ask myself why I spent so many hours slaving away for a virtual gold counter to increase by one. SE must be designed by evil, manipulative psychologists :-)

dmckee

@BrandonEnright If you say "worthless internet points" instead of "rep" and "worthless internet medals" instead of "badges" it ... well it doesn't actually do much but at least you feel like you are resisting.

Gigi10012

Hello

can anyone tell me what is Shrodinger equation for a photon?

dmckee

17:27

The Schrödinger equation is non-relativistic. Photons are fully relativistic. They don't go together. Use the Klein-Gorden equation instead.

Gigi10012

thank you @dmckee

Vader

17:59

any chance that this is real?

huvrtech.com

iKlsR

?magnets?

dunno

Vader

good cg for sure

look real

iKlsR

not necessarily all cg

Looking at the video again, their motions look really controlled

Vader

well youtube comments are very informative as always

iKlsR

at 2:11, the guys shirt looks a bit hoisted

Vader

18:05

yep, fake

iKlsR

Maglev

Maglev (derived from magnetic levitation) is a method of propulsion that uses magnetic levitation to propel vehicles with magnets rather than with wheels, axles and bearings. With maglev, a vehicle is levitated a short distance away from a guide way using magnets to create both lift and thrust. High-speed maglev trains promise dramatic improvements for human travel if widespread adoption occurs. Maglev trains move more smoothly and somewhat more quietly than wheeled mass transit systems. Their non-reliance on traction and friction means that acceleration and deceleration can surpass th...

am confuse, gonna go away

Brandon Enright

18:30

@DavidZ That's really impressive. My take away is that we should send every 7th grader in the country to Fermilab multiple times per year!

Kyle Kanos

19:18

@Vader techcrunch.com/2014/03/04/…

Physics Meta

19:43

Q: Feedback on the "no close" week

Has there been any feedback on A week of community closing: what should be disallowed homework? ? My impression is that it was all a bit underwhelming and the close ratio was largely unaffected. Has there been any discussions amongst the mods, and if so what conclusions did you reach?