The h Bar

David Zaslavsky

02:30

0

Q: Fictional teleportation scenario and conservation of energy

There are many examples in pop culture where someone can teleport (a mutant in X-Men or teleportation as in Star Trek). There are a lot of scenarios where a character is falling from a great height and someone catches them mid-air and teleports them to the ground, saving them. My question is, wh...

Off topic as fictional physics, I believe

Brandon Enright

03:51

@Dilaton Manishearth is gone for several days on vacation.

IIRC until June $5^{\textrm{th}}$

Ϛѓăʑɏ βµԂԃϔ

Hmmm... I thought he said he'd visit sometimes...

Brandon Enright

@ϚѓăʑɏβµԂԃϔ Perhaps. I got the impression he meant gone and unavailable but he could be back some point.

Ϛѓăʑɏ βµԂԃϔ

BTW,....

Pffft physicists... always looking to bend the rules of the system. — slugster 6 mins ago

Brandon Enright

I love that the Internet and sites like this can bring two people like you and I separated by thousands of $\mathrm{km}$ and many hours of timezones together in one place to discuss physics.

We're truly lucky compared to the world Einstein and others lived in.

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright Of course.... I had always thought about it - None to discuss ;-)

That's what lead to my addiction (Manish knows how I'm addicted, because we had a private discussion once) ;-)

I'm always excited with this flowing scheme (group chat)

Brandon Enright

04:01

It's also great that we share a language. Of course that's due to a huge amount of work by you to learn English.

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright Ohh.. It's your native.. Isn't it?

My bad... But (a secret), I don't speak English like I do in chat ;-)

Brandon Enright

Yeah English is my native language. It often makes me feel guilty that I didn't have to work to learn it.

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright Guilty... Eh? :P

Brandon Enright

I spend more time communicating with others that learned English in their adulthood than learned it naturally.

So I didn't put any work into the prerequisite that allows us to communicate and they put a huge amount into it. That's not "fair".

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright Truly speaking, the English I speak now is actually from the members here...

I always rob some words from those pro's...! ;-)

Brandon Enright

04:04

Your English is pretty good. You have a better grasp of the details than most Indian-English speakers I know.

Almost every idea you communicate comes across with enough detail it's clear and understandable.

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright Thanks... I got a positive response. I think I can use that to my next mod election ;-)

Brandon Enright

To be honest, your English isn't what's holding you back from a moderator election.

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright The way I presented (nominated) myself first was very bad...

1 sec...

Brandon Enright

I saw.

It wasn't bad.

Ϛѓăʑɏ βµԂԃϔ

Ohh... BTW, did you see the town hall chat digest...?

Brandon Enright

04:07

No.

Ϛѓăʑɏ βµԂԃϔ

2

A: 2012 Moderator Election - Town Hall Chat Digest

David Zaslavsky asked Crazy Buddy: If I remember correctly, you've said that you are not (yet!) a fluent English speaker. Do you think there is a chance of you misunderstanding people's comments while moderating, and if so, how would you prevent this from causing problems? Crazy Buddy answer...

When you get sometime, read the whole story... In fact, Ron Maimon also participated in it ;-)

Town hall chat happens during the final phase of election...

Brandon Enright

If you allow me to speak my mind... This isn't meant to hurt your feelings.

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright I know... ;-)

Brandon Enright

In terms of English, your fully qualified. I think you understand it enough to make good moderation decisions.

I think you lack maturity. That's not something you can "work harder at". You're 17 or 18 now, right? I think you probably won't be qualified until at least 25.

You need more experience dealing with conflict and "exotic" personalities.

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright Thanks... Maybe I should creatively try to induce something like humor into my speech...

@BrandonEnright Hey... That's a long time ya know..! :D

Brandon Enright

04:14

It is. Maturity can't be rush.

Ϛѓăʑɏ βµԂԃϔ

I'm patient..! (I mean, I'm waiting) :P

(When someone says "I'm patient" in India, AFAIK most people start to think of the phrase: "I'm a patient")

Brandon Enright

I would not have been patient when I was 17-19 either.

Ϛѓăʑɏ βµԂԃϔ

Maybe I'd get some experience when I go abroad (especially US) for my higher studies...

Brandon Enright

Some people are really mature at 19. That wasn't me.

I think there is something to say for years of experience and maturity.

Ϛѓăʑɏ βµԂԃϔ

10 years back..? (every decade) the era was (has been) different

Brandon Enright

04:20

I have no doubt that you work hard and try hard to do your best. To be completely frank though, I would not vote for you in a moderator election because I feel you lack the necessary maturity to resolve disputes and difficult conflicts.

Ϛѓăʑɏ βµԂԃϔ

I don't think only maturity is necessary for a mod... (I like open'ness)

There are enough mature guys already here ya know... (what about David or dmckee?)

Brandon Enright

Openness == transparance

transparency I mean

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright Psychologist..? Man, I shouldn't have started speech with you :P

Brandon Enright

@ϚѓăʑɏβµԂԃϔ No I'm just very introspective. I look back at myself at that age and try to guage where you are. My view is inherently biased and distorted by my own perspectives.

Ϛѓăʑɏ βµԂԃϔ

I see that... Cool (Good orator you're) ;-)

10 mins... brb after breakfast :D

Ϛѓăʑɏ βµԂԃϔ

04:35

Hmm... Once you interrupt a conversation, there's no way to start it again :D

Ϛѓăʑɏ βµԂԃϔ

Did someone notice that nonagon has been suspended...

I feel guilty now whether I had screwed up something on MSO..! :/

Brandon Enright

@ϚѓăʑɏβµԂԃϔ In my opinion we shouldn't use this chat to discuss the shortcomings of other users. Unfortunately I participated in the chat about Nonagon as much an anyone else.

That being said, he had a suspension coming.

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright Ohh.. Cool... Leave it..!

(Still wondering, he's suspended on math.SE too)

BTW, the answerer actually guessed it right ;-)

I hate to sound negative but non-mods can't tell if a user has other accounts. I'm not trying to imply that's the case here, but I'm just suggesting another possibility. — Mysticial 10 hours ago

This is the interesting case ever..! (in my SE activity) ;-)

Now, I can understand why dmckee said that. Our mods have watched those voting patterns :D

Brandon Enright

04:54

Our mods have a very difficult job.

A rather thankless one too.

Ϛѓăʑɏ βµԂԃϔ

Nope... I'm just curious about their tools... Waiting for 10k to access those ;-)

Brandon Enright

You'll get there, I have no doubt about that.

Ϛѓăʑɏ βµԂԃϔ

Of course, we all would get it... (In fact, our rate of rep. score is high) ;-)

I think I'm attracted towards this badges, scores, votes, etc. scheme... That maybe the reason for curiosity ;-)

Brandon Enright

My first year of college my roomate was from cambodia and his English was terrible. Much worse than yours. He worked really hard and 4 years later when he graduated his English was great. There was no way to compare the 4-year difference
.

The same will happen to you if you work at it.

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright I understand (I'm working on it)

Brandon Enright

05:00

I can see that you are and it shows in your posts and edits :-)

Ϛѓăʑɏ βµԂԃϔ

I watch atleast a movie per day with my uncle (or someone nearby)... - especially subtitles help me much

@BrandonEnright Thanks Brandon... for your positive feedback - I take your advice :P

The only problem I have now - is Spoken English

I'm working on it by speaking to an imaginative apparition like John Nash :P

Ϛѓăʑɏ βµԂԃϔ

06:06

@BrandonEnright Okay... I think I've found "why you said that..!"

Brandon Enright

@ϚѓăʑɏβµԂԃϔ Hey I'm not sure which "said that" you're referring too but I just went to bed so leave me a message and good night! :-)

Ϛѓăʑɏ βµԂԃϔ

@BrandonEnright I thought you had already gone..! :P

Brandon Enright

Well I had but I forgot to turn the sound off and I have the bad habit of jumping out of bed when I hear a sound that means I have a message waiting :-p

Anyways my machine is on mute now. G'night and have a good day!

Ϛѓăʑɏ βµԂԃϔ

Gd n8 - be sure you read those messages ;-)

Ϛѓăʑɏ βµԂԃϔ

Usually, (as I'm quite unstable) I keep changing my behavior often...

I'm quite confident that you'd change your judgement within several months for sure ;-)

@ChrisWhite: So, you didn't go to bed..?\ :P

user54412

06:12

@ϚѓăʑɏβµԂԃϔ Not yet....

Ϛѓăʑɏ βµԂԃϔ

ah... I know you..! You go to sleep only at morning IIRC ;-)

user54412

So I just stumbled across this answer:

user54412

0

A: Altering Venus rotational speed to match Earth's via weather manipulation

Some good information with regard to Venus climate and the recent "Venus Express" mission, can be found at: http://www.realclimate.org/index.php/archives/2008/03/venus-unveiled/ Some of the comments also contain good info, but there are,a lot of them. >200. If looking for more, or different inf...

user54412

and I'm wondering if people think it counts as spam

user54412

i mean its only purpose is to link to a global warming site, which has really nothing to do with the rotation rate of Venus

user54412

06:14

@ϚѓăʑɏβµԂԃϔ actually, I'm in a different time zone right now

user54412

it's not even midnight yet :P

Ϛѓăʑɏ βµԂԃϔ

@ChrisWhite Flagged it..! :D

@ChrisWhite Cool... But, Isn't Brandon more or less near your time zone..?

I think he's too sleepy while you're too studious ;-)

user54412

Probably - I think we're in the same state

Ϛѓăʑɏ βµԂԃϔ

Whaaaa... (Then, I'm right) :P

Ϛѓăʑɏ βµԂԃϔ

07:41

@ChrisWhite Hmm... I've noticed that the answer may not necessarily be a spam...

It's not useful, as it isn't related to what the question really asks...

The link gives some info about Venus (can be obtained from Wiki or so...)

Maybe a link-only answer ;-)

Physics Meta

09:33

0

Q: Physics SE should emphasis on problem solving

I observed math SE is more active than physics SE. They don't close problems. I think Physics SE should encourage problem solving. Moderator should not close homework problem. This will help community to think about harder one.

bug homework

Ϛѓăʑɏ βµԂԃϔ

10:51

0

Q: What is the force of air resistance on slow-moving ball in air?

I'm trying to figure out if an accelerometer can detect the change in air resistance as a small ball (0.1kg, 4cm radius) is thrown up (2m) and falls down again. This works out to a velocity range of 1.4 m/s to -1.4m/s. How can I estimate the acceleration due to air resistance at these speeds?

homework classical-mechanics fluid-dynamics drag

I had VTC'd this question...

Ϛѓăʑɏ βµԂԃϔ

12:03

BTW, I'd appreciate anyone interested to format or add something in my long answer...

0

A: Physics SE should emphasis on problem solving

Precisely, they've stopped closing homeworks and our HWs are quite less compared to Math.SE and we've got enough active users (especially me) and actively rushing mods to close those things... Over there in Math.SE... I observed math SE is more active than physics SE. They don't close proble...

I think I had screwed up something in the middle...

Anyone interested to review that...

userØØ7

12:59

2

Seen your IP ??....

Ϛѓăʑɏ βµԂԃϔ

@userØØ7 Hmmm... Wondering..? :O

userØØ7

ส้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้ヾ( ´ ▽ `)ノส้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้้

@ϚѓăʑɏβµԂԃϔ These are all from MSO ..

Ϛѓăʑɏ βµԂԃϔ

Wha...?

I need a clue :D

userØØ7

@ϚѓăʑɏβµԂԃϔ see the most upvoted question on MSO main page.

means answers in it.....

Ϛѓăʑɏ βµԂԃϔ

@userØØ7 I got that now :P

userØØ7

13:09

@ϚѓăʑɏβµԂԃϔ Yes you see your IP address...Everyone see their own IP

@ϚѓăʑɏβµԂԃϔ Don't edit your chat message......

Ϛѓăʑɏ βµԂԃϔ

@userØØ7 Well,.. Why's that so..? It does respond to you..! :P

I can think why you say that..!

I didn't get that first (wondered whether MSO did this to me)

Happy..? :P

userØØ7

13:27

@ϚѓăʑɏβµԂԃϔ Also you see how upvotes are gone in nonagon's account??User removed:-261. That means he had been using other account prevously as well and the other bounty was also from fake rep.

Ϛѓăʑɏ βµԂԃϔ

@userØØ7 I know... That's what meant by "voting irregularities"... ;-)

Everyday, they should think that one day or other, they'd get caught ;-)

Wondering if Manish is around...

meta.stackoverflow.com/posts/74702/edit

I mean, what the hell is this..?

26

A: Formatting Sandbox

Ϛѓăʑɏ βµԂԃϔ

16:29

Everyone...

Today, I noticed something different (I think this happens every day)

Usually, I spend atleast 5 hours hearing music with my 2.1 surround ;-)

In my room, it doesn't have a significant effect.

As my bathroom occupies less volume, I can reason that sound is reverberating more inside...

But, what about my hall..?

The bass is too high in my hall whereas in my room, bass & treble are quite equalized...

Ϛѓăʑɏ βµԂԃϔ

My thought is that bass (being at a low frequency) is easily transmitted through a given volume than treble without significant loss in energy...

As in case of pressure waves, treble spends most of its energy pushing the medium back & forth and gets weaker before spreading out...

Hope I'm right with this thought ;-)

userØØ7

@ϚѓăʑɏβµԂԃϔ A possible explanation can be Eco sounds are produced.

Ϛѓăʑɏ βµԂԃϔ

16:45

@userØØ7 Echo is what I meant by reverberation (a resonance)... Of course, I can hear those in my bathroom (has less/no absorbers)

My room & my hall are quite same except that the hall's volume is twice that of my room (wood, plastic things, being more or less the same)

I suspect this has to do more with distance covered by these waves. I maybe wrong ;-)

userØØ7

17:13

@ϚѓăʑɏβµԂԃϔ I think those 2 lines(posted by me |^ ) are making the image above it look dirty. But it can't be removed now.

Ϛѓăʑɏ βµԂԃϔ

Why it should be removed..?

userØØ7

If it's ok then no problem :)

Ϛѓăʑɏ βµԂԃϔ

Chat is totally for fun & only fun...

There's no necessary to format or delete transcripts (neither dump something useless inside) unless very necessary ;-)

userØØ7

@ϚѓăʑɏβµԂԃϔ Dou you think I shud have posted this math.stackexchange.com/questions/403069/… question in physics.se?

Ϛѓăʑɏ βµԂԃϔ

@userØØ7 yep..! of course - flag it ;-)

userØØ7

17:28

the calculations had been a page long so I think maybe someone else do it easily.

Ϛѓăʑɏ βµԂԃϔ

what..?

userØØ7

@ϚѓăʑɏβµԂԃϔ but I fear that here it would be considered only a mathematical querry.

Ϛѓăʑɏ βµԂԃϔ

1 sec...

What do you really want..? I think you didn't define that on the question..!

(First, I had a view over the question only)

BTW, incorrect definition of torque..!

userØØ7

Yes, if you think it include physics then it will be better to migrate it. But I think that just include 3D .

@ϚѓăʑɏβµԂԃϔ I think i defined $\vec r $ wrongly.

? or just Fxr is the problem(instead of rxF)?.

Ϛѓăʑɏ βµԂԃϔ

@userØØ7 Nope.. here's what I asked you...

Okay, so what's your question? — Muphrid 32 secs ago

@userØØ7 Yep..!

userØØ7

17:33

Are you Muphrid?

Ϛѓăʑɏ βµԂԃϔ

@userØØ7 Sorry... I'm always crazy - Just indicated that I asked the same..!

@userØØ7: Better see what math mods do... In its current form, it's too localized here ;-)

userØØ7

@ϚѓăʑɏβµԂԃϔ Yes but not too localised in M.SE

Ϛѓăʑɏ βµԂԃϔ

I know...

2

A: Physics SE should emphasis on problem solving

Precisely, they've stopped closing homeworks and our HWs are quite less compared to Math.SE and we've got enough active users (especially me) and actively rushing mods to close those things... Over there in Math.SE... I observed math SE is more active than physics SE. They don't close proble...

userØØ7

70-80% questions there are like that ,:)

Ϛѓăʑɏ βµԂԃϔ

@userØØ7 suggested something on your question ;-)

Dilaton

18:53

Darn, I guess I should give some answers in the near future, my question/answer ration starts to detoriate and it is in danger to even get divergent ... That makes me somehow feel like a nogoodnik :-/ (?).

kvasirr

19:31

I have some questions about physics education, who can help me ?

Brandon Enright

19:50

@kvasirr what's the basic gist of your question? It have have already been asked here or there may be a good place in the stack exchange network to ask it

Brandon Enright

23:26

@BenCrowell did you generate that image from the paper data? Your answer keeps getting better :-)

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