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12:32 AM
(c) ix- jy. (g) iy + jxy
(d) iy (h) i + jy
Can anyone tell me how to plot the vector field of g?
 
"Newton's third law of motion states that every action has an equal and opposite reaction. That is the reason we do not sink into the earth,(?) because when our weight exerts a force on the earth it also exerts an equal and opposite force on us." – why can we sink in sand?
--- say what now? Shouldn't it be the first law?... but if you just want to cut to the chase like that, isn't the answer, as it is to everything, e=mc2? What law governs buoyancy?
 
@Mazura I think an object can give a certain amount of reaction force as no body is rigid enough to bear anything. That way paper shouldn't also tear apart.
 
 
5 hours later…
5:59 AM
can't help myself. I found these music videos and I love them
Just shipped version 1 of a product! ELATED!!!!!!!!!
reading some math stuff. . . . . connecting with existence
Also Simone is out of surgery . . . twitter link to follow progress in case you might be curious
Simone is out of surgery and her doctors are very pleased with how everything went. She woke up long enough to make an inappropriate joke... so things are looking good.
ok
I am going to bed soon ~ 30 mins
 
6:20 AM
btw
Diamonté Harper (born July 3, 1993), known professionally as Saweetie, is an American rapper and songwriter from Hayward, California. After the success of her debut single, "Icy Grl", she was signed to Warner Bros. Records. She released her first major label EP, High Maintenance, in March 2018. == Life and career == === Early life and education === Saweetie was born Diamonté Harper on July 3, 1993, to a Filipino mother. She grew up largely in Hayward, California and spent much of her life in the San Francisco Bay Area but finished high school in Sacramento. She began writing music at ag...
****
Early life and education
Saweetie was born Diamonté Harper[1] on July 3, 1993, to a Filipino mother.[2][3] She grew up largely in Hayward, California and spent much of her life in the San Francisco Bay Area but finished high school in Sacramento.[4][5][6] She began writing music at age 14. After high school, she went on to attend San Diego State University before transferring to the University of Southern California where she studied communications and business. After graduating, she focuses on a rap career and begins to go to work.[7][8][6]
***
I've been told by a reliable source that she is extremely smart (Wall street level finance IQ )
ok going to bed now , been dancing to this the past couple of minutes
last song
 
6:36 AM
Though, touch wood, Chester appears to be escaping the thunderstorms.
 
Anonymous
@JohnRennie I'm getting this error: "Firefox is already running, but is not responding..." on Ubuntu. I tried killall firefox from terminal but it doesn't seem to work. Also restarted. Do you know any fix?
 
Anonymous
Btw this isn't my PC. I'm scared of messing it up :/
 
Use the ps command to see what processes are running and see if you can identify which one is Firefox.
 
Anonymous
Tried that. None of them is Firefox. Also checked from System Monitor
 
Anonymous
6:39 AM
How to locate the lock file ?
 
It'll be in ~/.mozilla/firefox somewhere. The file is just called lock
@Blue did you sort that Reader not working error?
 
Anonymous
I'll be back in a few minutes
 
7:14 AM
Guys, in a radiator, if we have a gas with high temperature and high pressure and the temperature outside the room is lower than the radiator, the gas in the radiator after some time will have around the temperature of the room (because of termal equilibrium). Well, then the gas will have low/room temperature and high pressure. Is that possible? I thought temperature and pressure are related?
Like high pressure = high tempreture and vice-versa? Doesn't the pressure of the gas in the radiator go down as the temperature goes down?
 
Assuming the gas is ideal it will obey the equation of state $$ PV = nRT $$ where $n$ is the number of moles of gas in the radiator.
Assuming the volume of the radiator is constant we get $$ P \propto T $$
 
Assuming assumptions are true ...
 
7:29 AM
Assuming that we assume that our assumptions are true
 
@JohnRennie The weather on Sunday morning here was impressive :P
 
@Mithrandir24601 in Bristol?
 
@JohnRennie Yep
 
According to the forecast you guys are in for a treat today :-)
 
@JohnRennie Still don't understand. I mean, as temperature goes down, doesn't the pressure go down as well?
 
7:33 AM
It just misses Chester! :-)
@NovaliumCompany yes, that's what I said: $P \propto T$
 
@JohnRennie Different forecasts say different things, so I'm not sure whether we'll get thunderstorms all afternoon and evening; a shorter one around lunch time; or some pleasant, if cloudy weather...
 
But the pressure inside the radiator is different to the pressure in the room because the density of the gas in the radiator, $n/V$, is different to the density in the room.
 
So in a radiator, as the gas exchanges heat with the room, the pressure goes down as well?
 
@NovaliumCompany yes
 
Well, do you know how a refrigirator works?
 
7:35 AM
@NovaliumCompany Yes
 
Well, it compresses the air of the room, and then the high temp, high pressure goes into a radiator, there the temperature cools to a room temperature but the pressure stays high, and then into the expansion valve where the high pressure, low temp gas gets expanded and the temperature falls even more, that's how it works, well... is that right?
 
Hey all. I've got a Uni assignment to write a short essay, and have been given a range of topics to choose from - I'm thinking of going with Neutrinos. We haven't been given any kind of specification on what the essay has to contain, other than an upper limit of 1800 words. I was thinking of mainly going in to how the Sterile Neutrino is a dark matter candidate (But initially covering the basics of neutrinos, etc) - does anyone else have any good suggestions they think I should consider?
 
7:58 AM
@NovaliumCompany Yes. The pump compresses the air so it increases the density, $n/V$. Then when the air has cooled the gas is allowed to expand again so the density falls.
 
@JohnRennie Well, in the radiator, when the temperature falls, as you said, the pressure should fall too? Then in the expansion chamber, how is it going to expand as it doesn't have enough pressure? And also I thought density is mass over volume?
 
The pressure in the radiator does indeed fall as the gas cools, but even after cooling to room temperature the pressure remains high because the density $n/V$ is high. That is, the pressure in the radiator decreases from very high to just high as the gas cools.
In the ideal gas law the density used is the molar density i.e. the number of moles of gas per unit volume.
The molar density is just the density in grams per unit volume divided by the molecular weight of the gas.
 
So in the radiator, the pressure and the temperature go down, but the density n/V stays high, wut...
 
The radiator has some constant volume $V$. If you pump n moles into the radiator the molar density is $n/V$. If you then let the gas cool without pumping any more gas in or letting any gas out the density stays at $n/V$.
 
So the density n/V creates internal pressure that later on in the expansion chamber is used to cool down the temp. Well, the n/V density is higher than the n/V density of the air in the room right? Since like, the pump, stuff the molecules and it creates internal pressure?
 
8:12 AM
Huh?
Internal pressure?
 
plz just kil me.
I don't understand where the pressure to later on be used in the expansion chamber comes from, since the pressure goes down as the temp. goes down in the radiator?
 
Take air at atmospheric pressure. If we take a volume $V = 22.4$ litres then at STP our volume $V$ contains one mole of gas.
 
wut?
STP?
Volume of what?
 
STP = Standard Temperature and Pressure
 
Why 22.4 Litres?
 
8:16 AM
The molar volume, symbol Vm, is the volume occupied by one mole of a substance (chemical element or chemical compound) at a given temperature and pressure. It is equal to the molar mass (M) divided by the mass density (ρ). It has the SI unit cubic metres per mole (m3/mol), although it is more practical to use the units cubic decimetres per mole (dm3/mol) for gases and cubic centimetres per mole (cm3/mol) for liquids and solids. == Calculation == The molar volume of a substance can be found by measuring its molar mass and density then applying the relation V ...
 
Oh yep, I remember now.
$V = \frac{22.4}{n}$ right?
I don't understand where the pressure to later on be used in the expansion chamber comes from, since the pressure goes down as the temp. goes down in the radiator?
 
I'm a bit puzzled about why Novalium's post got flagged ...
 
Which one ;\?
 
it doesn't seem even remotely offensive to me. It's just a cry of despair at the complexity of physics.
7 mins ago, by Novalium Company
plz just kil me.
 
@JohnRennie Sorry that was me - might have read that in the wrong context, I've just got half an eye on this while I'm studying
 
8:20 AM
Well, all I could say is sorry for offending anyone.
@JohnRennie Shall we continue?
 
@NoahP we're a bit sensitive about flags at the moment. It would be good to flag only things that are genuinely offensive.
7
@NovaliumCompany OK, so I have 1 mole of air in my 22.4 litre volume $V$ so the pressure is one atmosphere. OK so far?
 
Ah ok, understood! It's quite difficult to know where to draw the line with things like that - whilst I myself get it when I read the rest of the messages, others might think that kind of comment isn't really suitable for a light-hearted message! (No problem here!)
 
@JohnRennie Got it. Quick question anything can be 1 mole right? Just moles are a bit confussing to me, I studied them in school a few weeks ago, I got an A on the test, but like if we have H2O we have can have 1 mole if H2O and let's say 2 moles H, 1 mole H2, one mole O...?
 
1 Mole of anything is just $6.022\times 10^{23}$ of it
So, interestingly, you could have a mole of moles
 
6.022... atoms of it?
 
8:26 AM
@NovaliumCompany or molecules of it
 
or a mole is just a number?
 
Whatever it's made of, just take $6.022 \times 10^{23}$ of them
 
Got it, so I can have 1 mole of H2O, 1 mole of H2, 2 moles of H?
 
Yes
 
Ok got it, let's continue.
 
8:28 AM
OK so I have one mole of air in my volume V at on atmosphere. Suppose I now pump in another mole, 2 moles in total, but I do it slowly so the gas has time to cool as I pump it i.e. it stays at room temperature. What is the pressure in my container now?
Yes. Our equation is $$ PV = nRT $$ and in this case $V$ and $T$ are constant so $P \propto n$. If $n$ doubles the pressure doubles.
 
Got it.
So we have 2 moles of air, at a room temperature but 2 times the pressure of the room?
 
Yes.
But what a fridge does is pump the air in fast so it doesn't have time to cool. Technically this is called an adiabatic compression.
In thermodynamics, an adiabatic process is one that occurs without transfer of heat or matter between a thermodynamic system and its surroundings. In an adiabatic process, energy is transferred to its surroundings only as work. The adiabatic process provides a rigorous conceptual basis for the theory used to expound the first law of thermodynamics, and as such it is a key concept in thermodynamics. Some chemical and physical processes occur so rapidly that they may be conveniently described by the term "adiabatic approximation", meaning that there is not enough time for the transfer of energy as...
 
So what's the use of the radiator if it doesn't cool down?
 
When you do an adiabatic compression two things happen:
1. the pressure goes up
2. the temperature goes up as well
So when I pump another mole of gas into my container quicly my container gets hot.
 
So you have a container of gas that is high temp and high pressure?
 
8:33 AM
Yes
 
Then that gas goes to the radiator?
 
Then you let the container cool. As the container cools the pressure falls.
 
By container you mean radiator?
 
If you let the container cool to room temperature we're back to two moles of gas at room temp so the pressure is back to two atmospheres.
 
Well, a radiator is just a container, isn't it :D?
 
8:34 AM
Yes
 
Ah, so we have 2 moles of air, with 2 times the pressure of the room pressure, with room temperature? Then when it goes to the expansion chamber, the 2x pressure is used and the temp goes even more down?
 
Exactly :-)
 
Omg I love physics and fridges.
Thanks @JohnRennie. I'll be heading to do my homework (ah.. geography...) and then school. So see you :)
 
Bye :-)
(I didn't want to dismay an enthusiastic young physicist by pointing out that the difference between thermodynamics and torture is that torture is less painful :-)
 
@JohnRennie What if thermo is the torture?
 
8:40 AM
@Mithrandir24601 no-one could be that inhuman :-)
 
@JohnRennie ... Except for the examiners :'/
 
Mind if I repost this now the traffics cleared a bit? :P
Hey all. I've got a Uni assignment to write a short essay, and have been given a range of topics to choose from - I'm thinking of going with Neutrinos. We haven't been given any kind of specification on what the essay has to contain, other than an upper limit of 1800 words. I was thinking of mainly going in to how the Sterile Neutrino is a dark matter candidate (But initially covering the basics of neutrinos, etc) - does anyone else have any good suggestions they think I should consider?
 
What level is the essay?
First year?
 
Sid
@Mithrandir24601 Oh, God. No.
 
Anonymous
@JohnRennie Sorry for disappearing suddenly. :P Not yet. My laptop is back at home (I'm at a nearby university). I'll try during the weekend when I get back home.
 
8:43 AM
@JohnRennie Yeah, its my vacation essay - we finish exams, get a holiday, and woooh, an essay!
 
Anonymous
As for the Ubuntu error, can't fix it today. They are shifting servers now :/. Anyhow thanks for the help
 
Anonymous
I'll ask you for help should I need it again (which I probably will :P)
 
@NoahP I don't know what the essay is supposed to achieve - presumably to teach you something. It's just that to do justice to the subject of the sterile neutrino would require a discussion of the neutrino mass mechanism i.e. the motivation for the existence of the sterile neutrino. And that seems a bit deep for first years.
 
It's meant to develop our writing skills, and give us a chance to go in depth on something we're particularly interested in - the list of topics given seemed a bit naff to me! Okay, I'll take that on board :) I don't have to set a topic in stone, so I can choose to change half way through if I fancy
 
Well neutrinos are fascinating so I'm sure writing an essay on them would be a lot of fun
To be fair the seesaw mechanism for mass generation shouldn't be totally out of reach ...
 
8:51 AM
I'll have a look at it once I've got my last exam out the way! This is the list we have:1. The physics of airport security
2. The gyroscope and its uses
3. Medical imaging techniques
4. Advances in laser technology
5. Femtosecond lasers
6. The search for super-heavy nuclei / new elements
7. The physics of invisibility cloaks
8. The physics of weather systems
9. The role of physics in nano-technology
10. Turning sunlight into electricity
11. The physics of music
12. The attainment of low temperatures
From the Uni that discovered graphene and has two nobel prize laureates because of it, 19 seemed pretty inevitable...
 
Surprised there isn't one on Brian Cox then...
 
I'd choose neutrinos. It seems the most interesting option by far.
 
Physics of music sounds interesting
 
No pun intended :-)
 
Philosophy:
is time a dense set?
 
8:53 AM
@CooperCape I'd lodge a formal complaint after sitting through his lectures...
@JohnRennie Agreed!
 
@NoahP I heard he was pretty dull... When I went on an open day last year there was only about 17 pictures of him throughout.
 
I don't think you can get through 10 minutes of an open day at Manchester without hearing about either Brian Cox or how they discovered Graphene/have more current nobel prize laureates than Oxbridge
 
To be fair there was only a few slides on graphene. Oh and that talk on graphene. And the part were we were looked at some graphene.
 
Typical haha
 
@NoahP Isn't that because they went about hiring people who already won the nobel?
 
8:59 AM
@Mithrandir24601 Nope, they both won it at Manchester - they aren't bragging without justification to be fair
 
@NoahP Yeah, 2 people got it for graphene, but Manchester has another 2 (not in physics) that they hired
 
@David Z and others: I would appreciate it if someone could explain-to-OP/mediate/step-in/vote-to-reopen/vote-to-close here & here .
 
@Mithrandir24601 Ah ok - I was only referring to Physics
 
@NoahP Fair
 
Anonymous
9:18 AM
@NoahP "invisible cloaks"?
 
Anonymous
Metamaterials?
 
Anonymous
How far has that progressed tho ?
 
@Blue No clue - not picking that one!
 
Anonymous
Hmm...tbh I would go with physics of music too
 
Anonymous
There's lot of interesting stuff there
 
9:27 AM
Don't you love it when the two assumptions you 'have to make' contradict each other...
 
Anonymous
Main themes could be Fourier transform of music and the uncertainty principle
 
Anonymous
@CooperCape Of course
 
Okay, good. :)
 
Anonymous
@CooperCape Reminds me of toppling of a point particle :P
 
Anonymous
After studying the chapter on centre of mass it's usual habit to start considering all objects as point objects
 
9:32 AM
Eww mechanics.
What I don't get is why they give you the backstory of Lucy on a seesaw. Just to say Lucy is a point particle and the seesaw is uniform rigid blah
 
Anonymous
Yeah, you could add that as experimental verification ;)
 
Anonymous
The weather's rainy today....yay
 
Anonymous
Aaaand I just ate a lot of chicken
 
Anonymous
Life's good
 
Sid
9:38 AM
Rainy here too!!
And no chicken for me. Only potato. :P
 
Anonymous
How's mess food at Rourkela ?
 
Sid
I survive.
 
Anonymous
Heh :P
 
Anonymous
The mess food at JU is pretty awful too. The canteens are better
 
Anonymous
I'm extraordinarily lucky that my home is just 10 mins away from college..so I don't have to survive that stuff :P
 
9:52 AM
Hello.
 
Anonymous
Olleh.
 
Anonymous
HoWsLiFe?
 
Disappointing
but that's life
 
Anonymous
10:13 AM
This....earthy smell of rain....I missed it so much :D
 
Anonymous
It's like drug
 
Anonymous
"Some scientists believe that humans appreciate the rain scent because ancestors may have relied on rainy weather for survival."
 
Anonymous
Lol
 
12:31 PM
@rob ROB!!!
Whether you like to admit it or not, many good questions are homework questions. They were assigned as homework because the teacher thought it was such a good question that the student should attempt it. BYE!
MODERATORS HAVE TOO MUCH POWER HERE. There should be an option to cast votes to open a deleted post even if it was deleted by a moderator.
Maybe 10 votes instead of 5, but the option needs to be there.
 
@AnuragBaundwal There is little use in singling out rob - it is our policy that full answers to homework-like questions get removed. This is not because we claim that all such questions are bad questions - we simply have decided that we do not want to answer such questions here, and removing the answers disincentivizes both asking and answering such questions.
 
@ACuriousMind Some of the best questions are homework questions. You can only read a book for so long before you run out of theory to read. Then you move on to exercises. Homework questions are important in addition to theory.
PRACTISE IS IMPORTANT.
 
Again, no one is claiming that homework-like questions are inherently bad questions, so you're barking up the wrong tree.
 
BYE.
@ACuriousMind And for the record, practice is the reason why Indian scientists were able to launch more than a hundred satellites with a single rocket. Practice makes perfect. Bye.
 
rob
12:48 PM
@AnuragBaundwal I am summoned
Though I agree with @ACuriousMind. It took me a while as a user here to see the value in our homework policy, but I think it makes (and keeps) the site more interesting.
@AnuragBaundwal And, there totally is. The reopen queue allows ordinary users (with sufficient reputation) to reopen a closed question. And answers which are "temporarily deleted" from homework questions have in several cases been reinstated after some delay. If the question is still on the site after a few weeks, custom-flag your deleted answer and perhaps we can restore it.
 
Ok cool.. I'll try voting after a couple of days. Sorry if I was rude.
 
1:21 PM
Has anybody seen this?
What is this "negative mass" they are talking about? Because it sounds too good to be true.
 
rob
2:09 PM
@called2voyage Seems to be step two of this misinformation process; the negative mass is associated with some quasiparticles.
@AnuragBaundwal No sweat at all.
 
@skull Why is he suspended?
@rob It doesnt keep the site more interesting.
I didn't know that even answers get deleted here :/ . That's really rude.
I don't know what harm questions cause to the site. Why cant people just let the questions be there?
 
rob
@Abcd The idea is that if the low-level questions get answers, then the people who ask low-level questions will come back and ask more of them. That pushes more interesting higher-level questions off of the recent feed.
There are plenty of places on the internet where people can get help with introductory homework questions. This community has decided that physics.se isn't one of them.
 
@rob Are you sure the full community has decided it? I think only the moderators and 50k+ reputation users have decided it.
 
rob
@Abcd There's lots of old discussion on the topic. Start with the "homework policy" link in the close banner, read that meta post, then start reading the related/linked posts. It wasn't an easy decision for the community to make.
 
@Abcd SE is all about a good signal-to-noise ratio. To most people who are not the asker, homework-like questions are noise - the explicit solution of a specific exercise is not of interest to anyone but someone faced with that specific exercise.
In contrast, we want questions to be broadly useful, in the sense that they ask about a physical concept that is of larger importance than just getting the solution to one specific exercise right. And the way to get users to ask sthe questions we want is to close the questions we don't want.
@Abcd There's a very long history of meta discussion on this topic, and it is evident that while people very much disagree on the details, the general idea of some homework-like questions being off-topic has broad support. This is also evidenced by the usually unanimous close reviews on most straight "solve this exercise" questions.
 
2:27 PM
@ACuriousMind those who dont like it should ignore it
 
@rob Thanks, that makes sense.
 
@Abcd Meta your proposal
I never saw any sense in arguing on chat
Nothing happens
And not everyone is on chat
 
@ACuriousMind you can create a "homework" tag and put it on your ignore
So every exercise question will be tagged homework
 
rob
@Abcd Note that at the time of this discussion, @ACuriousMind and I were not yet moderators, and I think only one of the answerers was at that time a 50k-rep user.
 
And while you are checking your feeds
you can just ignore those homework questions because they are blurred
 
rob
2:31 PM
2
Q: Poll: do you ignore the homework tag?

Emilio PisantyI want to tackle an teensy tiny bit of the homework debate: How many people set the homework tag on their ignore list as a way to improve their experience of the site? This is one of the arguments for keeping the tag around, but there's not much to go on regarding how important this mechanism is...

 
@rob its your choice to keep it on ignore or not
 
@Abcd So what? People don't consistently tag their questions, and I don't advocate for homework-like questions being off-topic because they somehow personally annoy me. I think they should be off-topic because I want this to be a site that doesn't pander to the legions of pupils trying to pass their exams, but instead to those who are genuinely interested in the science of physics.
There's enough places on the internet where you can get your homework question answered, we don't need to be another one.
 
rob
@Abcd I'm not trying to discount your suggestions in any way. I'm just trying to steer you (and myself, a little bit) to places where we've had these discussions in the past.
 
Sid
@Abcd that doesn't help the site in anyway. The point is, Physics.SE shouldn't become a place for people to dump their homeowrk questions
 
@Sid Okay, leave it. I just find it rude.
 
Sid
2:43 PM
@AnuragBaundwal ...How is that relevant to the discussion of homework questions?
 
3:03 PM
@ACuriousMind WTF?
 
@DanielSank Yeah, that's pretty much my reaction, too :P
 
when I had homework kind of problem in school, I just went to ask teachers or professors.
 
"Söder has repeatedly said the cross should not be viewed as a religious symbol, rather as a cultural one central to Bavarian identity." Wtf I don't even...
 
It doesn't say that crosses can't be upside down ...
 
^ This guy's done time.
 
3:08 PM
@JohnRennie First actionable plan I've heard on this matter ;)
 
John Rennie for king of Bavaria!
(John, how's your German?)
 
Sid
@DanielSank Apparently Bavarians support that
Well, at least a majority do
 
@Sid Rule by the majority on issues like that can be problematic.
 
3:21 PM
> Despite opposition from prominent members of the Catholic church and leading theologians
well, I'll be
 
Is there a half angle formula?
 
@EmilioPisanty I can't really comment since recent events show 52% of British are similarly jingoistic.
 
@EmilioPisanty Yes, in this round of separation of church and state, the church is more in favour of separation than the state. It'd be funny if it weren't equally concerning, really.
@AbhasKumarSinha If you could be a bit more specific about what you want, we might be able to answer you ;)
 
hmmmmmm
 
@ACuriousMind I mostly find it funny =P
but that's because my connections to Bavaria are rather slim
though I will be spending some time in the land of the Wittelsbachs over the next couple of years
> 56% of Bavarians are in favour of the cross ruling
fcs
that's why Berlin's the best. AfD calls for a demo expecting 7k people and instead they get 2k and 70k+ people on the counter-demo (or at least, so claims social media, so detailed numbers not necessarily trustworthy, but still)
 
3:34 PM
@EmilioPisanty You will? New job?
Or just confererences and stuff?
 
is there a difference between the meaning of "secant" and that of "chord"?
 
@ACuriousMind sort of. A joint fellowship to be spent primarily in Barcelona but with stays at MPQ.
 
can anyone try this question in my way? - math.stackexchange.com/questions/2803143/…
 
May 19 at 13:51, by ACuriousMind
@user187604 For the record: Please don't advertise newly posted questions in chat unless you have a specific reason to believe it is of interest to someone here. The volume of questions our site gets is so high that, if everyone did that, the actual conversations in here would be drowned out by such advertisements, so we prefer that users don't do that at all.
 
hmmmmmm
@ACuriousMind I flagged the question for moderator attention to be deleted
 
3:46 PM
@AbhasKumarSinha Ah, that wasn't necessary, you could've just asked me to delete it directly :P Also, no worries it doesn't need to be banished from chat now, just keep it in mind for the future
 
oh okay
 
4:14 PM
@CaptainBohemian Secant is a line, chord is a line segment
 
I misread that as:
Secret is a lie, chord is a line segment
 
lol
 
Anonymous
(Advertisement) "Quantum Revolution" chat session is on next Tuesday: chat.stackexchange.com/rooms/info/74398/…
 
Anonymous
Let's see how far the duplicated idea succeeds :P
 
Anonymous
@DanielSank @EmilioPisanty Just in case you people are interested ^
 
Anonymous
4:30 PM
 
Anonymous
4:45 PM
@AnuragBaundwal We had this discussion several times here. I personally feel our homework policy is good, since in most cases I know of, the questions can be boiled down to a single conceptual question, but most people don't bother to. I don't see why we should spend our time answering such questions. However, what I do advocate is leaving behind constructive comments to improve such questions.
 
@enumaris but a whole line can be treated as a single line segment, so can't "secant" and "chord" be used interchangeably?
 
nope
the secant to a circle will extend to infinity on both sides
 
Anonymous
And even with the current homework policy, an unimaginable amount of crap still manages to pass through
 
a chord terminates at the boundary of the circle
 
Anonymous
I stopped visiting the main site exactly due to that reason.
 
Anonymous
If anything, I feel we should be stricter about our standards or else the experts will leave
 
Anonymous
And many already have
 
@Blue many experts have left, but I think it's a bold step to conclude that's because of pollution by homework questions.
I think people just get bored after a while.
 
@EmilioPisanty I like Barcelona for the most part, but I had trouble finding good food.
What's up with that?
Spain in general seems to want me to eat lots of salt, pork, and salted pork. Vegetables seem hard to come by.
 
Anonymous
@JohnRennie Yup, I do agree that. And add to that the amount of crackpot questions which pass through. And the effortless questions about newtons laws of motion, electromagnetism, etc.
 
Anonymous
4:50 PM
I strongly feel we should be more strict about the "show your effort" thing
 
I remember one evening in Sevilla I was dying for a plant to eat. I found a cafe with "Ensalata de tomate" on the menu. I ordered it. It was a plate with nine slices of mozzarella cheese, each adorned by a half of a cherry tomato on top.
 
Anonymous
I'm fed up of people dumping questions without even searching Wikipedia first
 
@DanielSank sounds very nice - once you've thrown the tomatoes away :-)
 
@JohnRennie Is your body composed entirely of cheese and meat?
 
isn't everyone's?
 
4:54 PM
What is the food group elemental breakdown of John Rennie?
We should do spectroscopy on John.
 
I think more direct methods are more efficient...e.g. put John in a centrifuge
 
Anonymous
JR: Meat and beer - 90%
 
@JohnRennie You'd eat just slices of mozzarella and nothing else? At least pick a cheese that tastes like something! :P
 
I do remember the cheese in Spain being ridiculously good.
 
@DanielSank it amuses me to pretend that's the case, but actually during the week I eat lots of veg. I've just consumed a vegetable risotto (though admittedly it did have some chicken in).
 
4:56 PM
@JohnRennie Riiiiiiiight. Step into this centrifuge, please.
Mind the gap.
 
when I had dinner in a fancy restaurant in spain, there was a whole table of cheeses...
like...a lab bench sized table
so much cheese...
 
Anonymous
@JohnRennie Nobody will believe that :P
 
Yeah, cheese and pork that tastes like chestnuts.
 
@DanielSank Manchego is one of my favourites
 
The expensive dinner I had in Sevilla was one of my favorite meals ever.
@JohnRennie Manchego is fantastic cheese.
 
4:57 PM
my favorite meal ever
is one I had in Portugal
 
Would you believe Costco sells Manchego?
 
sadly, I can no longer remember the name of the restaurant...
 
@enumaris [insert cheesy pun]
 
T_T
 
4:58 PM
@DanielSank I think Tesco does too
 
it was so good tho
 
Best cheeses: manchego, gruyere, really old dark orange gouda.
 
Stilton is probably my favourite cheese.
 
Mozzarella gets no love :(
 
cus it's tasteless
 
4:59 PM
@SirCumference it doesn't really taste of anything
 
@SirCumference Mozarella is great. It's a key ingredient of one of the most perfect foods.
 
I like medium strengthed cheeses
 
@JohnRennie Brits love Stilton and I've never even encountered it.
 
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