By my calcualtions this is not right ;)
but if you explain me your logic in a PM, i may find a mistake in my calculations :rolleyes: Do that.
Although I think it's wrong.
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By my calcualtions this is not right ;)
but if you explain me your logic in a PM, i may find a mistake in my calculations :rolleyes: Do that.
Although I think it's wrong.
Okay SeventhStar, it's on its way. I seemed to have some difficulty sending it though so let me know if you don't receive it.
Cheers,
John
Where did I see that one before? :DQuote:
Originally posted by John E
Mr. Smith, Mr. Jones and Mr. Robinson all turn up for a job interview at the same time. The interviewer shows them into his office and says, "Listen, fellas - I'm hopeless at conducting interviews so I'd like to test you on your intelligence. In my drawer I have five coloured discs; 3 x white and 2 x black. If you all turn around and shut your eyes I'll put one coloured disc (black or white) on everyone's back. The first person who can tell me what colour disc he's got and why will get the job. There are a couple of rules though. You mustn't look at the disc. You mustn't help each other and you mustn't guess."
The linkmaster strikes again.
That's wrong. And thats right is wrong too. To not be wrong, it should be that's right. :DQuote:
Originally posted by SeventhStar
I move with a speed of 1 minute per minute (thats right)!
At least if you know what I mean. :p
That is 1/60 circle degrees per minute. You move on a circle. All we need to know is the radius of the circle.Quote:
Originally posted by SeventhStar
I move with a speed of 1 minute per minute (thats right)!
If you move clockwise, the radius is 2.5 meters. If not, then it is 182.5 meters. Your problem has two solutions. I think I don't need to do the exact math, do I? :DQuote:
I'm surrownded by mirrors and every time that I look to my right, I see my reflection 5 meters away. Every time I look to my left I see my reflection 365 meteres away. How long would it take me to pass 100 meters?
John did you receive my PM?
Well! Gabriel and John made the same mistake. I think that it's a mistake because I said that I seemy reflection not myself in the mirrors.
Gabriel you're wrong there is only one radius possible.
who will give me the correct answer?
Oh. Surrounded by mirrors. Ok, the radius of the mirror circle is 185m, and the radius of the circle you're moving on is 180m.
well...Quote:
Originally posted by SeventhStar
who will give me the correct answer?
Is it 33.33 minutes then?
nope. much more.
Oups, I've not made this kind of calculation for years, so I got completly mixed up and lost. I'll try with 1909.85. But if it's correct, the point should go to Gabriel as he gave all the information needed to solve the problem (except a basic trigonometry course ;) ).
Uf, I'm having the same error, Elrond. I came to the same 33.33 result, and I can't find my mistake. What am I doing wrong? :confused:
3819.71 minutes
Just found out my answer is exactly double to that of Elrond. Elrond, check if you haven't multiplied by 180/(2*pi) instead of 180/pi. And by the way, is codeguru slow again or is it just my computer?
:D :D
I have tried again, searching for some basic trigonometric notions, and then I came up to 1910.8 minutes. Elrond, it seems that I'm going just one step behind you all the time!
(I hope this sentence exists in English, in Spanish it does)
:D
Simon, I got the same result and I multiplied by 360/(2*pi), but I can be wrong in any other of the steps.Quote:
Originally posted by Simon666
Just found out my answer is exactly double to that of Elrond. Elrond, check if you haven't multiplied by 180/(2*pi) instead of 180/pi. And by the way, is codeguru slow again or is it just my computer?
And, yes, for me Codeguru is dreadfully slow since yesterday. I thought it was my computer. :)
Just received it now. I'm not sure what you mean by seeing "myself" instead of "my reflection" but if you mean what I think you mean then the answer is 31.83 hours or approx 1909.86 minutesQuote:
Originally posted by SeventhStar
John did you receive my PM?
Mirror circle diameter = 185 = (365+5)/2 m
Mirror circle radius = 92.5 = 185/2 m
Observer circle radius = 92.5 - (5/2) = 90 m
Observer speed = 1 '/min = 1°/60 min
Observer angle made after 100 m:
- In rad : 100 m / 90 m =10/9 rad
- In degrees : 10/9 * 180/pi = 200/pi °
Time necessary:
200/pi ° / (1°/60 min) = 3819.7 min
i get 1909,8593171027440292266051604702
one minute of the circle that had a radius 180m is pi/60 meters so a meter is 60/pi minutes and 100m are 6000/pi minutes (from the circle and time) so 6000/pi minues or 100/pi hours is correct.
Can you decide to whom the point goes I'm a bit puzzled. I was sort of collective thing thinking that lead you to the result.
For once can some else but me make the status bar :D
Why do you divide by two to get the diameter? :confused:Quote:
Originally posted by Simon666
Mirror circle diameter = 185 = (365+5)/2 m
Mirror circle radius = 92.5 = 185/2 m
same mistake!Quote:
Originally posted by Simon666
Mirror circle diameter = 185 = (365+5)/2 m
Mirror circle radius = 92.5 = 185/2 m
Observer circle radius = 92.5 - (5/2) = 90 m
Observer speed = 1 '/min = 1°/60 min
Observer angle made after 100 m:
- In rad : 100 m / 90 m =10/9 rad
- In degrees : 10/9 * 180/pi = 200/pi °
Time necessary:
200/pi ° / (1°/60 min) = 3819.7 min
If I had said 'I see myself in the mirrors' then you should've halfed the distances. But I said 'I see my reflection x meters away' that means that the distances stay the same.
I would give a point to Gabriel and another one to Elrond. :)Quote:
Originally posted by SeventhStar
i get 1909,8593171027440292266051604702
one minute of the circle that had a radius 180m is pi/60 meters so a meter is 60/pi minutes and 100m are 6000/pi minutes (from the circle and time) so 6000/pi minues or 100/pi hours is correct.
Can you decide to whom the point goes I'm a bit puzzled. I was sort of collective thing thinking that lead you to the result.
For once can some else but me make the status bar :D
The radius of the mirror circle should be 92.5 m according to me, and of the observer 90 m.Quote:
Originally posted by SeventhStar
i get 1909,8593171027440292266051604702
one minute of the circle that had a radius 180m is pi/60 meters so a meter is 60/pi minutes and 100m are 6000/pi minutes (from the circle and time) so 6000/pi minues or 100/pi hours is correct.
Can you decide to whom the point goes I'm a bit puzzled. I was sort of collective thing thinking that lead you to the result.
For once can some else but me make the status bar :D
Aha, so you do admit it. :mad: 'I see my reflection x meters away', ask anybody who has had physics, optics or even five year old, they will tell you that based upon this sentence the mirror is half the distance away, x/2. I can even start up a poll if you want. Question: if your reflection is x meter away, how far is the mirror?Quote:
Originally posted by SeventhStar
same mistake!
If I had said 'I see myself in the mirrors' then you should've halfed the distances. But I said 'I see my reflection x meters away' that means that the distances stay the same.
- x
- x/2
- Depends on whether the mirror is convex, flat or concave, <x/2, =x/2 or > x/2
Or 1/2 point to each one :DQuote:
Originally posted by saturno7
I would give a point to Gabriel and another one to Elrond. :)
Should we allow point divission.
I suppose that when I say my reflection is X meters away then i have a mirror X meters away from me and have calculated the distance. But when i say I see myself as if I'm X meters away, that means that the mirror is X/2 meters away.Quote:
Originally posted by Simon666
Aha, so you do admit it. :mad: 'I see my reflection x meters away', ask anybody who has had physics, optics or even five year old, they will tell you that based upon this sentence the mirror is half the distance away.
That is strange logic. Do I need to flood you with hundreds of links? Just one example:Quote:
Originally posted by SeventhStar
A suppose that when I say my reflection is X meters away then i have a mirror X meters away from me and have calculated the distance. But when i say I see myself as if I'm X meters, that means that the mirror is X/2 meters away.
Taken from http://customsightpicture.com/articles.html :
"Reflections in mirrors work like this. If you stand three feet from a mirror, your reflection is six feet away."
Okay Simon! Whatever you say! Just don't fight!
If you want to I'll Give you a point. I admit that I had the distance division in mind and tried to think up a way to avoid it so it wold be cathcier and more difficult. Obviosly i didn't do this. So: you're right we're wrong. Have a point and ask a question.
Score:
1. Simon666 - 3pts
1. Gabriel and solarflare - 2pts
2. Saturno, Elrond, John E - 1pt
asker:
Simon666
PS Seriously, he's right! It's my fault that i mislead you with my posts. I took away my point for a wrong question. So Simon surprise us with something cool!
:cool: :cool: :cool:
Just another link: reflection. It is quite good, they give an equation for the distance of the reflected object from the mirror as function of the focal point and the distance of the real object from the mirror:Quote:
Originally posted by SeventhStar
Okay Simon! Whatever you say! Just don't fight!
If you want to I'll Give you a point. I admit that I had the distance division in mind and tried to think up a way to avoid it so it wold be cathcier and more difficult. Obviosly i didn't do this. So: you're right we're wrong. Have a point and ask a question.
1/i + 1/o = 1/f
As you can see, this implies that in physics we understand under distance between the image of how far away the image is the sum i+o = 2*o for a flat mirror. I don't want any points in case you consider them mercy. I think only correct answers matter.
Here is a tough one: which manufactured item does neither the producer nor the customer want to use, while as the user does not even see it?
I have found it!!
It's a coffin, so the user is dead and the producer and customer don't want to die. :D
Come on Simon! How am I gonna become the leader if you dont ask anything :D :D ;) :p
this is too easy. :D
write the status post will ya. pleeeeeeeezQuote:
Originally posted by saturno7
I have found it!!
It's a coffin, so the user is dead and the producer and customer don't want to die. :D
Come on, Simon, give me my point so I can ask a new question...
:rolleyes: :p :D
Consider it given... You're right. That's an old and famous riddle. I was on lunch break and had just prepared my answer when you answered. :rolleyes:Quote:
Originally posted by saturno7
Come on, Simon, give me my point so I can ask a new question...
:rolleyes: :p :D
Chanse!;) :p
Ok! I hadn't heard it before, I was about to give up thinking when suddenly the answer came to my mind. I'm feeling very happy now! :D
Ok, my question is a bit silly, but I like it. A man and a woman are found in the North Pole inside two ice blocks. The scientists take them to a laboratory and when they are starting to investigate them, one of them says: "These people are Adan and Eve". How did he know?.
Please, don't start messing with scientific explanations, this is only a kind of joke. But there is a correct answer and I will accept only that one. ;) :D
Best regards,
Ana.
I'd say that they have no belly button and that the man has a missing rib! :p
the man missed a rib
1. I HATE MY INTERNET IT'S SLOWER THAN SLOWER CAN BE IT TAKES ME 5(FIVE) MINUTES TO OPEN A CODEGURU PAGE
2. can someone (not me PLEASE I BEG YOU ) for ONCE make the status post.
3. I'm losing my nerve
4. I'm going crazy
5. AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA
Mine is the same, even with broad band. :mad:Quote:
Originally posted by SeventhStar
1. I HATE MY INTERNET IT'S SLOWER THAN SLOWER CAN BE IT TAKES ME 5(FIVE) MINUTES TO OPEN A CODEGURU PAGE
BTW Don't all men have a missing rib? I thought that was the origin of the legend?
BTW2 I haven't been able to get onto CodeGuru for most of this morning so I missed the "circle of mirrors" answer. What was it eventually??
I'ts kinda complicated but we settled toQuote:
Originally posted by John E
Mine is the same, even with broad band. :mad:
BTW Don't all men have a missing rib? I thought that was the origin of the legend?
BTW2 I haven't been able to get onto CodeGuru for most of this morning so I missed the "circle of mirrors" answer. What was it eventually??
3819,7186342054880584532103209403 minutes
Arghh, I was solving someone's problem with Netmeeting (I'm at work, you know) and I have just seen the replies.
And codeguru is sooooo slow today.
Elrond, you win, but forget about the missing rib, the scientist saw it at first sight. It's that they don't have a belly button. :p :D
Elrond, 1 point. Please, ask the next question which I won't be able to answer because now it's my lunch hour. ;)
But you weren't here to defend it so we forgot that you gave the first correct answer so Simon took this point. :rolleyes:
corected Score:
1. Simon666, Gabriel, Elrond, Saturno, and solarflare, John E - 2pts
asker:
Elrond
PS. John E first gave the corect answer
About the slowness, I've heard that there is a new vrus around that doesn't cause much harm to users but uses servers to duplicate itself in enormous quantities slowing the internet considerably. Could that be the case?Quote:
Originally posted by SeventhStar
But you weren't here to defend it so we forgot that you gave the first correct answer so Simon took this point. :rolleyes:
About the question: the answer is indeed a coffin. I was gone for lunch brake from 12.15 to 13.30 local time (GMT+1), so sorry for that saturno7.
I doubt that but I'll check.Quote:
Originally posted by Simon666
About the slowness, I've heard that there is a new vrus around that doesn't cause much harm to users but uses servers to duplicate itself in enormous quantities slowing the internet considerably. Could that be the case?
About the question: the answer is indeed a coffin. I was gone for lunch brake from 12.15 to 13.30 local time (GMT+1), so sorry for that saturno7.
So righ now we're waiting for Elrond to ask his question. Okay I hope I see it this year :) :D
I just checked. He did. Funny thing I didn't notice that well because it is so hard to answer and to get a new page that I only pay attention to what I'm replying to. I also didn't remember it that well as at that time I hadn't calculated it out myself yet and because it was deemed as incorrect at first by SeventhStar. So I would like to give my point to John E.
At the time I was still puzzled about the minute/minute thing, I hate grammatical riddles. I'm really not good at language plays, both units can have a different meaning and here they are used together.
You did. TAKE A LOOK AT THE SCORE. 2 posts aboveQuote:
Originally posted by Simon666
So I would like to give my point to John E.