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Has anyone tried to split other atoms, and would the yield of energy be worth it?
Yeah I was asking if anything smaller than uranium had been fissioned also has any other elements besides hydrogen been fused together?
Thanks
Hello everyone, if you remember I had put up a question about bubble sort some time ago. Here is another problem I am encountering about sorting. The problem is from a book probably titled "Structured C programming", I dont remember the author. The problem is like follows: 10 Integers are to be taken from the user and stored in an array Now this array has to be sorted in ascending order, but without creating any new integer array.
The hint given is : use array of pointers. This array initially would hold the addresses of the integers in the order entered by the user. Now sorting would be done by changing the addresses held in the pointer array. That is, the the original array would not be manipulated, but the addresses held in the pointer array would be manipulated in ascending order. I hope I succeed in explaining the situation to you.
I have used the following code to do it, and I think the logic is correct, but its somehow not working. Can somebody help? - Nikhilthemacho
#include<stdio.h> #include<conio.h> void main() { int arr[]={10,44,12,99,66,84,45,59,128,1,27,33}; int i,j,n; int *pasc[15],*pdsc[15],*porig[15]; clrscr(); printf("Original Series : \n"); for(i=0;i<10;i++) { porig[i]=&arr[i]; pasc[i]=&arr[i]; printf("\n(orig)Number %-3d : %-3d,address : %-7u || ",i+1,*porig[i],porig[i]); } for(i=0;i<n-1;i++) for(j=i+1;j<n;j++) { if( *pasc[i] > *pasc[j] ) { pasc[i]=&arr[j]; pasc[j]=&arr[i]; }//end of if }//end of j loop printf("\n\nafter sorting:\n"); for(i=0;i<10;i++) { printf("\nNumber %-3d : %-3d,address : %-7u",i+1,*pasc[i],pasc[i]); } getch(); }//end of main
You need to be careful about what you sort.
#define N 12 int *ptemp; for(i=0 ; i<N ; i++) { for(j=i+1 ; j<N ; j++) { if(*pasc[i] > *pasc[j]) { ptemp=pasc[i]; pasc[i]=pasc[j]; pasc[j]=ptemp; } } }
Cheers, -- Kjoon lee 05:29, 20 July 2006 (UTC)
I think thats wrong bcoz u r not using the "&" operator to get addresses of elements. Example, if you use ptemp=pasc[i], it wouldnt work, you will have to put it as ptemp=&pasc[i]. Secondly, here you have misunderstood the requirement of the problem. Here we dont have to sort the pointer array, but change the addresses stored in these pointers so that they point in ascending order. That is, the first pointer should point to the least , then next pointer to the next higher number. We dont have to sort the pointer array. Hope someone can fix this one. Bye - Nikhilthemacho
Whole source:
#include<stdio.h> #define N 12 int main(void) { int arr[]={10,44,12,99,66,84,45,59,128,1,27,33}; int i, j; int *pasc[12], /* *pdsc[12],*/ *porig[12]; int *ptemp; printf("Original series:\n"); for(i=0 ; i<N ; i++) { porig[i]=&arr[i]; pasc[i]=&arr[i]; printf("Original number %-2d: %-3d, address: %-8p\n", i+1, *porig[i], porig[i]); } for(i=0 ; i<N-1; i++) { for(j=i+1 ; j<N ; j++) { if(*pasc[i] > *pasc[j]) { ptemp=pasc[i]; pasc[i]=pasc[j]; pasc[j]=ptemp; } } } printf("\nSorted series:\n"); for(i=0 ; i<N ; i++) { printf("Sorted number %-2d: %-3d, address: %-8p\n", i+1, *pasc[i], pasc[i]); } //getchar(); return 0; }
Results, with Cygwin GCC:
Original series: Original number 1 : 10 , address: 0x22ee90 Original number 2 : 44 , address: 0x22ee94 Original number 3 : 12 , address: 0x22ee98 Original number 4 : 99 , address: 0x22ee9c Original number 5 : 66 , address: 0x22eea0 Original number 6 : 84 , address: 0x22eea4 Original number 7 : 45 , address: 0x22eea8 Original number 8 : 59 , address: 0x22eeac Original number 9 : 128, address: 0x22eeb0 Original number 10: 1 , address: 0x22eeb4 Original number 11: 27 , address: 0x22eeb8 Original number 12: 33 , address: 0x22eebc Sorted series: Sorted number 1 : 1 , address: 0x22eeb4 Sorted number 2 : 10 , address: 0x22ee90 Sorted number 3 : 12 , address: 0x22ee98 Sorted number 4 : 27 , address: 0x22eeb8 Sorted number 5 : 33 , address: 0x22eebc Sorted number 6 : 44 , address: 0x22ee94 Sorted number 7 : 45 , address: 0x22eea8 Sorted number 8 : 59 , address: 0x22eeac Sorted number 9 : 66 , address: 0x22eea0 Sorted number 10: 84 , address: 0x22eea4 Sorted number 11: 99 , address: 0x22ee9c Sorted number 12: 128, address: 0x22eeb0
If you're unsatisfied with my solution or explanations, at least you know where to start from: n was uninitialized and the wrong things were being sorted. Also, you might want to overhaul the code to eliminate *porig[]. -- Kjoon lee 09:07, 20 July 2006 (UTC)
Well kjonlee, thanx for attempting it. And definitely you have got the answer. But the requirement has been bypassed. I will try to explain it to you again. See, when you are sorting the "pointer array", you are actually changing the order of the "elements" of the "pointer array". But the program requires that the "addresses" to which the pointers are pointing should be swapped. Example: consider three integers array int arr[]={55,2,87}. Consider int *parr[]. Now, parr[1] would contain address of arr[1]. parr[2] would have address of arr[2], and parr[3] of arr[3]. So after sorting, what should happen is that parr[1] should have address of arr[2], parr[2] of arr[1], and parr[3] of arr[3]. Hope I have cleared this example this time.
Que: After how many days or months or years will corex start showing its effects on kidney if taking in high quantities? And what are the other negative effects. Explain in detail . —Preceding unsigned comment added by 202.177.148.100 ( talk • contribs)
Why there is a need of integration when Addition is there and wat integration do the same as simple addition?
My question is wat is the basic purpose of integration ?? and in it is most commonly used(i mean in which field)?
Integration is another form of addition. It is used where you need to add the data which changes continuously. Say you want to find out the area of a circle. One way is to devide the circle into small strips, find out the area of each strip (each strip resembles a rectangle. Smaller is the width of the strip, better is the approximation) and add the areas of all strips to get the total area. With integration, you can do it in one shot. You integrate the area of one strip with the curve (the circle in this case) as the limits. See Integral -- Wikicheng 07:19, 20 July 2006 (UTC)
When I enter a swimming pool, the water at first feels cold, unless it is heated, then it feels warm. Is there any possible water temperature relative to air temperature that would make the water seem devoid of temperature change? Hyenaste (tell) 05:23, 20 July 2006 (UTC)
Shouldn't it be otherwise, if a lot of particles hit you at high speeds? Thanks.
how does an infinitely variable transmission work?i hear there are model cars being developed that use IVTs,how do they work? —The preceding unsigned comment was added by Chiwaye ( talk • contribs) 09:22, July 20, 2006 (UTC).
Are there any free / open source softwares that converts a music into a score? For example I have a piano song, I put it into the software and the software inteprets it and produces a piano score? Thanks! —The preceding unsigned comment was added by 219.78.204.234 ( talk • contribs) 10:29, July 20, 2006 (UTC).
What if we superheat hydrogen to get plasma and isolate the contents(protons and electrons) and individually particle accelerate 4 protons to just the right amount that they fuse(NOT collide),then would not we have had our first fusion reactor?
Isn't it a bit far fetched to suggest that a natural climate condition could have been affected so quickly by human actions? A few farmers not plowing their land well enough isn't exactly going to affect a thousand year old cycle of climate change in the midwest, I mean it used to an inland sea, and now it's dry and arid, obviously there haven't been human beings living there the whole time doing it, so why attribute it to human actions? It seems like this was more of an excuse for FDR to get the federal government involved in the personal affairs of farmers, then a serious study. So the question, in light of current science, does FDR's theory of 'Over farming' still hold water?-- Dusty Bowls 12:38, 20 July 2006 (UTC)
I would like to know, what a hindered transition means. For eg. 103Rh, which is an E3 transition.
The theoretical transition probablity / exptl gives the value ~400. Theoretical value is obtained by uisng the single particle estimate for E3 35(A^2)(E^7) s-1 and exptl value by using the relation ln 2/[(t1/2)(1+Tot. ICC)] Tot. ICC is the total intenal conversion coefficient.
So, what does this mean.
Well the title says it all really. This is to announcement that there is a new section of the reference desk devoted to software, hardware and computer science at Wikipedia:Reference desk/Computer so that those of you who want to can add it to their watchlists. if you want to comment on the wisdom/stupidity of the move please don't do it here do it here Theresa Knott | Taste the Korn 15:31, 20 July 2006 (UTC)
I am getting an eye exam monday at 2:00, but I have a bike race at 6:00, and I was wondering how long it takes for the pupil dilation to wear off. AdamBiswanger1 17:28, 20 July 2006 (UTC)
You need to ask your Eye Doctor. My guess is it takes a long time, ask if you can wear dark glasses for the bike race.
I am in the process of purchasing a computer and have heard varous opinions about Dell, Gateway, and Mac. I wanted to compare the processors and the cost of the three to make my decision. If you have any information or could guide me in the right direction, I would appreciate the help.
Would there be a spectral equivalent to the sonic boom phenomena, if a vehicle could travel faster than the speed of light.
If so what would it look like, assuming you could see it and negating any physical limitations preventing you from seeing it.
So what would happen to the image of the vehicel travelling faster than the speed of light?
Can someone answer this question very simply: Leaving aside spiritual ideas, which is more reasonable: (1) the universe goes on forever, or (2) the universe has borders? If scientists believe in situation (2), what is just past the borders? Please - serious answers only. 66.213.33.2 18:51, 20 July 2006 (UTC)
I would just like to add to Kainaw's response. The BOOMERANG project demonstrated that the curvature of the Universe is zero (it's flat). From this we know that the Universe could not curve back on itself in exactly the same way as a sphere as a sphere has a positive curvature. For the Universe to curve back on itself and maintain a zero curvature it would have to take on a toroidal shape (I'm not sure off the top of my head if there are other shapes that would suffice). Basically, if you can keep travelling in a straight line round the Universe and end up where you started it's because it's doughnut shaped!
Astronauts in space survive for weeks, even months, breathing the same air over and over. Why can't the technology used to remove carbon dioxide from air be used in mining shafts? Is it too costly?
Where did the name come from?-- 64.12.116.74 20:02, 20 July 2006 (UTC)
As a kid I got bitten whilst fishing by an insect which I commonly called a horsefly (UK). It was quite large - substantially bigger than a mosquito and had a long proboscis which folded under its body with a joint, like an elbow. Over the last few days working I have been bitten repeatedly by what I now know is a horsefly - 'Tabanus'. What was I getting biten by as a child?
As my school biology teacher pointed out longer ago than I'd care to remember, enzymes are proteins and nobody (as far as I know) has synthesised a protein yet. So where do the enzymes come from?
Thanks. -- 62.253.52.155 20:50, 20 July 2006 (UTC)
You're going to tell me that this depends upon how you define a planet.
Second question - how many 'things' (technical term) are there in solar system that it might be worth having a space staion on in the future, say at least 500 miles long in their longest dimension?
Thanks. -- 62.253.52.155 21:03, 20 July 2006 (UTC)
I'm not actually sure how many "traditional" planets there are nowerdays, as there seemed to be two different planets discovered at about the same time, and then some people are saying that Pluto should no longer be regarded as a planet.
(M u s t r e s i s t......the urge to say that its a pity that the tradition of naming planets after cartoon characters has not been continued with, as someone will report that the cartoon was named after the planet; and that the planet was named by a little english girl.)
Yep Pluto isn't a planet it's a Kuiper belt object. So that makes eight planets. Theresa Knott | Taste the Korn 22:05, 20 July 2006 (UTC)
Wheather or not Pluto and 2003 UB313, also known as "Xena," are planets is really a matter of personal opinion at this point. The International Astronomical Union's defintion of "planet" is due out this fall (probably September). Whatever they decide though, the controversey will most certainly not end. Personally, I don't really care because the term "planet" has virtually no scientific meaning. A more sensible (in my opinion) alternative would be to have different types of planets. For example, we could have the terrestrial planets ( Mercury, Venus, Earth, and Mars), the Jovian planets ( Jupiter, Saturn, Uranus, and Neptune), the trans-neptunian planets (Kuiper Belt objects such as Pluto, Xena, Sedna, Quaoar, etc.), and minor planets (which could include any of the asteroids larger enough to pull themselves into a roughly spherical shape like Ceres). All that is unlikely to happen though. Anyways, just had to insert my two cents worth :-) -- Nebular110 22:22, 20 July 2006 (UTC)
Definition of planet is a featured article - read it :). The definition I prefer is that it is a body massive enough to be sphereoid as a result of its own gravitational pull. Raul654 08:33, 21 July 2006 (UTC)
Nothing lasts forever. At some time far in the future humans as a species will die out. By that time technology should have advanced enough to make the autonomous and concious robots of science fiction an everyday reality. Being non-biological, and cleverer than us, they should survive whatever it is that kills us. So they will live on as a kind of new robot species, while our human species has gone into history. Thanks. -- 62.253.52.155 20:57, 20 July 2006 (UTC)
Summing up what's been said here recently - is this right?
Gulls:
Have better eyesight than humans Have better hearing than humans Have more efficient respiratory/circulatory systems than humans Have stronger immune systems than humans Have stronger bones than humans, size for size Can swallow more food than humans in one go Have faster reflexes than humans
Why is it then that gulls are not ruling the world?
I have an incredibly noisy computer - it is almost as bad as sitting next to a vacuum cleaner. I've had it for four or five years, and I often work on it for 8+ hours a day.
I have begun to wonder if this long exposure could be damaging my hearing, as although I think I normally have good hearing, I've noticed that when it is very quiet, such as at night or when I wake up in the morning, I often hear a sort of white-noise in my ears. I wonder if this is the first signs of tinnatus (sp.?) and deafness.
Rather than paying out many pounds for ear protectors, which may be uncomfortable, or disposable ear-plugs, I am thinging about making my own ear plugs out of two very short pieces of wood dowel about 10 or 12 mm in diameter. Does anyone have any other suggestions please?
Thanks -- 62.253.52.130 22:15, 20 July 2006 (UTC)
You are probably right about wooden earplugs - one hears about people who pernamently damage their ears by sticking things in them, especially those little sticks with cotton on the end.
I have bought some proper earplugs (after shopping around found some half the price of the ones I'd first seen). Wearing just ear plugs doesnt remove all the noise, but wearing earplugs and ear-protectors (like ear muffs) does. It feels rather absurd to be wearing them, and makes my ears hot, but the white-noise sounds seem to have decreased.
I have just an ordinary computer, not a server. The computer model on display where I bought it seemed perfectly silent. It really is very noisy, and I'd appreciate any help on how to identify the particular replacement fan I need, and where to buy it by mail order, preferably in the UK.
Thanks.
I am researching a novel in which a person with a weak heart, due to a serious heart attack in the past, is stalked by an assassin who injects a chemical into his bloodstream that would cause him to have another heart attack, killing him.
After reading the heart attack article, I have discovered that Antiplatelet drugs such as aspirin or Glyceryl trinitrate are used to treat heart attacks.
Then, in the platelet article, I discovered there are chemicals that (sometimes massively)stimulate the production of platelets such as Thrombin or Convulxin.
So, if a person with a weak heart was injected with platelet stimulating drugs, would it cause them to have a heart attack? Is that logic correct?
-- 69.138.61.168 22:24, 20 July 2006 (UTC)
May I ask how the assassin plans on getting the poison into the victim's bloodstream? Is the victim hospitalized? Is the assassin going to restrain the victim and then place an intravenous line? (Just asking out of curiosity.) — Knowledge Seeker দ 05:27, 21 July 2006 (UTC)
Ooh - here's a good plot twist. Your hapless victim with a weak heart could also be quitting smoking, so he's on the patch. You could have your assasin lace a box of nicotine patches with some deadly chemical and switch them with the victim's patches, so the victim is slowly poisoned and ends up with a heart attack. -- Bmk 14:52, 21 July 2006 (UTC)
If the sun's light takes 7 minutes to reach us than are we seeing the sun relative to when the light reached us? (are we seeing the 7 minutes behind?)
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The page you are currently viewing is an archive page. While you can leave answers for any questions shown below, please ask new questions at one of the pages linked to above. This will insure that your question is answered more quickly. | ||||||||
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Has anyone tried to split other atoms, and would the yield of energy be worth it?
Yeah I was asking if anything smaller than uranium had been fissioned also has any other elements besides hydrogen been fused together?
Thanks
Hello everyone, if you remember I had put up a question about bubble sort some time ago. Here is another problem I am encountering about sorting. The problem is from a book probably titled "Structured C programming", I dont remember the author. The problem is like follows: 10 Integers are to be taken from the user and stored in an array Now this array has to be sorted in ascending order, but without creating any new integer array.
The hint given is : use array of pointers. This array initially would hold the addresses of the integers in the order entered by the user. Now sorting would be done by changing the addresses held in the pointer array. That is, the the original array would not be manipulated, but the addresses held in the pointer array would be manipulated in ascending order. I hope I succeed in explaining the situation to you.
I have used the following code to do it, and I think the logic is correct, but its somehow not working. Can somebody help? - Nikhilthemacho
#include<stdio.h> #include<conio.h> void main() { int arr[]={10,44,12,99,66,84,45,59,128,1,27,33}; int i,j,n; int *pasc[15],*pdsc[15],*porig[15]; clrscr(); printf("Original Series : \n"); for(i=0;i<10;i++) { porig[i]=&arr[i]; pasc[i]=&arr[i]; printf("\n(orig)Number %-3d : %-3d,address : %-7u || ",i+1,*porig[i],porig[i]); } for(i=0;i<n-1;i++) for(j=i+1;j<n;j++) { if( *pasc[i] > *pasc[j] ) { pasc[i]=&arr[j]; pasc[j]=&arr[i]; }//end of if }//end of j loop printf("\n\nafter sorting:\n"); for(i=0;i<10;i++) { printf("\nNumber %-3d : %-3d,address : %-7u",i+1,*pasc[i],pasc[i]); } getch(); }//end of main
You need to be careful about what you sort.
#define N 12 int *ptemp; for(i=0 ; i<N ; i++) { for(j=i+1 ; j<N ; j++) { if(*pasc[i] > *pasc[j]) { ptemp=pasc[i]; pasc[i]=pasc[j]; pasc[j]=ptemp; } } }
Cheers, -- Kjoon lee 05:29, 20 July 2006 (UTC)
I think thats wrong bcoz u r not using the "&" operator to get addresses of elements. Example, if you use ptemp=pasc[i], it wouldnt work, you will have to put it as ptemp=&pasc[i]. Secondly, here you have misunderstood the requirement of the problem. Here we dont have to sort the pointer array, but change the addresses stored in these pointers so that they point in ascending order. That is, the first pointer should point to the least , then next pointer to the next higher number. We dont have to sort the pointer array. Hope someone can fix this one. Bye - Nikhilthemacho
Whole source:
#include<stdio.h> #define N 12 int main(void) { int arr[]={10,44,12,99,66,84,45,59,128,1,27,33}; int i, j; int *pasc[12], /* *pdsc[12],*/ *porig[12]; int *ptemp; printf("Original series:\n"); for(i=0 ; i<N ; i++) { porig[i]=&arr[i]; pasc[i]=&arr[i]; printf("Original number %-2d: %-3d, address: %-8p\n", i+1, *porig[i], porig[i]); } for(i=0 ; i<N-1; i++) { for(j=i+1 ; j<N ; j++) { if(*pasc[i] > *pasc[j]) { ptemp=pasc[i]; pasc[i]=pasc[j]; pasc[j]=ptemp; } } } printf("\nSorted series:\n"); for(i=0 ; i<N ; i++) { printf("Sorted number %-2d: %-3d, address: %-8p\n", i+1, *pasc[i], pasc[i]); } //getchar(); return 0; }
Results, with Cygwin GCC:
Original series: Original number 1 : 10 , address: 0x22ee90 Original number 2 : 44 , address: 0x22ee94 Original number 3 : 12 , address: 0x22ee98 Original number 4 : 99 , address: 0x22ee9c Original number 5 : 66 , address: 0x22eea0 Original number 6 : 84 , address: 0x22eea4 Original number 7 : 45 , address: 0x22eea8 Original number 8 : 59 , address: 0x22eeac Original number 9 : 128, address: 0x22eeb0 Original number 10: 1 , address: 0x22eeb4 Original number 11: 27 , address: 0x22eeb8 Original number 12: 33 , address: 0x22eebc Sorted series: Sorted number 1 : 1 , address: 0x22eeb4 Sorted number 2 : 10 , address: 0x22ee90 Sorted number 3 : 12 , address: 0x22ee98 Sorted number 4 : 27 , address: 0x22eeb8 Sorted number 5 : 33 , address: 0x22eebc Sorted number 6 : 44 , address: 0x22ee94 Sorted number 7 : 45 , address: 0x22eea8 Sorted number 8 : 59 , address: 0x22eeac Sorted number 9 : 66 , address: 0x22eea0 Sorted number 10: 84 , address: 0x22eea4 Sorted number 11: 99 , address: 0x22ee9c Sorted number 12: 128, address: 0x22eeb0
If you're unsatisfied with my solution or explanations, at least you know where to start from: n was uninitialized and the wrong things were being sorted. Also, you might want to overhaul the code to eliminate *porig[]. -- Kjoon lee 09:07, 20 July 2006 (UTC)
Well kjonlee, thanx for attempting it. And definitely you have got the answer. But the requirement has been bypassed. I will try to explain it to you again. See, when you are sorting the "pointer array", you are actually changing the order of the "elements" of the "pointer array". But the program requires that the "addresses" to which the pointers are pointing should be swapped. Example: consider three integers array int arr[]={55,2,87}. Consider int *parr[]. Now, parr[1] would contain address of arr[1]. parr[2] would have address of arr[2], and parr[3] of arr[3]. So after sorting, what should happen is that parr[1] should have address of arr[2], parr[2] of arr[1], and parr[3] of arr[3]. Hope I have cleared this example this time.
Que: After how many days or months or years will corex start showing its effects on kidney if taking in high quantities? And what are the other negative effects. Explain in detail . —Preceding unsigned comment added by 202.177.148.100 ( talk • contribs)
Why there is a need of integration when Addition is there and wat integration do the same as simple addition?
My question is wat is the basic purpose of integration ?? and in it is most commonly used(i mean in which field)?
Integration is another form of addition. It is used where you need to add the data which changes continuously. Say you want to find out the area of a circle. One way is to devide the circle into small strips, find out the area of each strip (each strip resembles a rectangle. Smaller is the width of the strip, better is the approximation) and add the areas of all strips to get the total area. With integration, you can do it in one shot. You integrate the area of one strip with the curve (the circle in this case) as the limits. See Integral -- Wikicheng 07:19, 20 July 2006 (UTC)
When I enter a swimming pool, the water at first feels cold, unless it is heated, then it feels warm. Is there any possible water temperature relative to air temperature that would make the water seem devoid of temperature change? Hyenaste (tell) 05:23, 20 July 2006 (UTC)
Shouldn't it be otherwise, if a lot of particles hit you at high speeds? Thanks.
how does an infinitely variable transmission work?i hear there are model cars being developed that use IVTs,how do they work? —The preceding unsigned comment was added by Chiwaye ( talk • contribs) 09:22, July 20, 2006 (UTC).
Are there any free / open source softwares that converts a music into a score? For example I have a piano song, I put it into the software and the software inteprets it and produces a piano score? Thanks! —The preceding unsigned comment was added by 219.78.204.234 ( talk • contribs) 10:29, July 20, 2006 (UTC).
What if we superheat hydrogen to get plasma and isolate the contents(protons and electrons) and individually particle accelerate 4 protons to just the right amount that they fuse(NOT collide),then would not we have had our first fusion reactor?
Isn't it a bit far fetched to suggest that a natural climate condition could have been affected so quickly by human actions? A few farmers not plowing their land well enough isn't exactly going to affect a thousand year old cycle of climate change in the midwest, I mean it used to an inland sea, and now it's dry and arid, obviously there haven't been human beings living there the whole time doing it, so why attribute it to human actions? It seems like this was more of an excuse for FDR to get the federal government involved in the personal affairs of farmers, then a serious study. So the question, in light of current science, does FDR's theory of 'Over farming' still hold water?-- Dusty Bowls 12:38, 20 July 2006 (UTC)
I would like to know, what a hindered transition means. For eg. 103Rh, which is an E3 transition.
The theoretical transition probablity / exptl gives the value ~400. Theoretical value is obtained by uisng the single particle estimate for E3 35(A^2)(E^7) s-1 and exptl value by using the relation ln 2/[(t1/2)(1+Tot. ICC)] Tot. ICC is the total intenal conversion coefficient.
So, what does this mean.
Well the title says it all really. This is to announcement that there is a new section of the reference desk devoted to software, hardware and computer science at Wikipedia:Reference desk/Computer so that those of you who want to can add it to their watchlists. if you want to comment on the wisdom/stupidity of the move please don't do it here do it here Theresa Knott | Taste the Korn 15:31, 20 July 2006 (UTC)
I am getting an eye exam monday at 2:00, but I have a bike race at 6:00, and I was wondering how long it takes for the pupil dilation to wear off. AdamBiswanger1 17:28, 20 July 2006 (UTC)
You need to ask your Eye Doctor. My guess is it takes a long time, ask if you can wear dark glasses for the bike race.
I am in the process of purchasing a computer and have heard varous opinions about Dell, Gateway, and Mac. I wanted to compare the processors and the cost of the three to make my decision. If you have any information or could guide me in the right direction, I would appreciate the help.
Would there be a spectral equivalent to the sonic boom phenomena, if a vehicle could travel faster than the speed of light.
If so what would it look like, assuming you could see it and negating any physical limitations preventing you from seeing it.
So what would happen to the image of the vehicel travelling faster than the speed of light?
Can someone answer this question very simply: Leaving aside spiritual ideas, which is more reasonable: (1) the universe goes on forever, or (2) the universe has borders? If scientists believe in situation (2), what is just past the borders? Please - serious answers only. 66.213.33.2 18:51, 20 July 2006 (UTC)
I would just like to add to Kainaw's response. The BOOMERANG project demonstrated that the curvature of the Universe is zero (it's flat). From this we know that the Universe could not curve back on itself in exactly the same way as a sphere as a sphere has a positive curvature. For the Universe to curve back on itself and maintain a zero curvature it would have to take on a toroidal shape (I'm not sure off the top of my head if there are other shapes that would suffice). Basically, if you can keep travelling in a straight line round the Universe and end up where you started it's because it's doughnut shaped!
Astronauts in space survive for weeks, even months, breathing the same air over and over. Why can't the technology used to remove carbon dioxide from air be used in mining shafts? Is it too costly?
Where did the name come from?-- 64.12.116.74 20:02, 20 July 2006 (UTC)
As a kid I got bitten whilst fishing by an insect which I commonly called a horsefly (UK). It was quite large - substantially bigger than a mosquito and had a long proboscis which folded under its body with a joint, like an elbow. Over the last few days working I have been bitten repeatedly by what I now know is a horsefly - 'Tabanus'. What was I getting biten by as a child?
As my school biology teacher pointed out longer ago than I'd care to remember, enzymes are proteins and nobody (as far as I know) has synthesised a protein yet. So where do the enzymes come from?
Thanks. -- 62.253.52.155 20:50, 20 July 2006 (UTC)
You're going to tell me that this depends upon how you define a planet.
Second question - how many 'things' (technical term) are there in solar system that it might be worth having a space staion on in the future, say at least 500 miles long in their longest dimension?
Thanks. -- 62.253.52.155 21:03, 20 July 2006 (UTC)
I'm not actually sure how many "traditional" planets there are nowerdays, as there seemed to be two different planets discovered at about the same time, and then some people are saying that Pluto should no longer be regarded as a planet.
(M u s t r e s i s t......the urge to say that its a pity that the tradition of naming planets after cartoon characters has not been continued with, as someone will report that the cartoon was named after the planet; and that the planet was named by a little english girl.)
Yep Pluto isn't a planet it's a Kuiper belt object. So that makes eight planets. Theresa Knott | Taste the Korn 22:05, 20 July 2006 (UTC)
Wheather or not Pluto and 2003 UB313, also known as "Xena," are planets is really a matter of personal opinion at this point. The International Astronomical Union's defintion of "planet" is due out this fall (probably September). Whatever they decide though, the controversey will most certainly not end. Personally, I don't really care because the term "planet" has virtually no scientific meaning. A more sensible (in my opinion) alternative would be to have different types of planets. For example, we could have the terrestrial planets ( Mercury, Venus, Earth, and Mars), the Jovian planets ( Jupiter, Saturn, Uranus, and Neptune), the trans-neptunian planets (Kuiper Belt objects such as Pluto, Xena, Sedna, Quaoar, etc.), and minor planets (which could include any of the asteroids larger enough to pull themselves into a roughly spherical shape like Ceres). All that is unlikely to happen though. Anyways, just had to insert my two cents worth :-) -- Nebular110 22:22, 20 July 2006 (UTC)
Definition of planet is a featured article - read it :). The definition I prefer is that it is a body massive enough to be sphereoid as a result of its own gravitational pull. Raul654 08:33, 21 July 2006 (UTC)
Nothing lasts forever. At some time far in the future humans as a species will die out. By that time technology should have advanced enough to make the autonomous and concious robots of science fiction an everyday reality. Being non-biological, and cleverer than us, they should survive whatever it is that kills us. So they will live on as a kind of new robot species, while our human species has gone into history. Thanks. -- 62.253.52.155 20:57, 20 July 2006 (UTC)
Summing up what's been said here recently - is this right?
Gulls:
Have better eyesight than humans Have better hearing than humans Have more efficient respiratory/circulatory systems than humans Have stronger immune systems than humans Have stronger bones than humans, size for size Can swallow more food than humans in one go Have faster reflexes than humans
Why is it then that gulls are not ruling the world?
I have an incredibly noisy computer - it is almost as bad as sitting next to a vacuum cleaner. I've had it for four or five years, and I often work on it for 8+ hours a day.
I have begun to wonder if this long exposure could be damaging my hearing, as although I think I normally have good hearing, I've noticed that when it is very quiet, such as at night or when I wake up in the morning, I often hear a sort of white-noise in my ears. I wonder if this is the first signs of tinnatus (sp.?) and deafness.
Rather than paying out many pounds for ear protectors, which may be uncomfortable, or disposable ear-plugs, I am thinging about making my own ear plugs out of two very short pieces of wood dowel about 10 or 12 mm in diameter. Does anyone have any other suggestions please?
Thanks -- 62.253.52.130 22:15, 20 July 2006 (UTC)
You are probably right about wooden earplugs - one hears about people who pernamently damage their ears by sticking things in them, especially those little sticks with cotton on the end.
I have bought some proper earplugs (after shopping around found some half the price of the ones I'd first seen). Wearing just ear plugs doesnt remove all the noise, but wearing earplugs and ear-protectors (like ear muffs) does. It feels rather absurd to be wearing them, and makes my ears hot, but the white-noise sounds seem to have decreased.
I have just an ordinary computer, not a server. The computer model on display where I bought it seemed perfectly silent. It really is very noisy, and I'd appreciate any help on how to identify the particular replacement fan I need, and where to buy it by mail order, preferably in the UK.
Thanks.
I am researching a novel in which a person with a weak heart, due to a serious heart attack in the past, is stalked by an assassin who injects a chemical into his bloodstream that would cause him to have another heart attack, killing him.
After reading the heart attack article, I have discovered that Antiplatelet drugs such as aspirin or Glyceryl trinitrate are used to treat heart attacks.
Then, in the platelet article, I discovered there are chemicals that (sometimes massively)stimulate the production of platelets such as Thrombin or Convulxin.
So, if a person with a weak heart was injected with platelet stimulating drugs, would it cause them to have a heart attack? Is that logic correct?
-- 69.138.61.168 22:24, 20 July 2006 (UTC)
May I ask how the assassin plans on getting the poison into the victim's bloodstream? Is the victim hospitalized? Is the assassin going to restrain the victim and then place an intravenous line? (Just asking out of curiosity.) — Knowledge Seeker দ 05:27, 21 July 2006 (UTC)
Ooh - here's a good plot twist. Your hapless victim with a weak heart could also be quitting smoking, so he's on the patch. You could have your assasin lace a box of nicotine patches with some deadly chemical and switch them with the victim's patches, so the victim is slowly poisoned and ends up with a heart attack. -- Bmk 14:52, 21 July 2006 (UTC)
If the sun's light takes 7 minutes to reach us than are we seeing the sun relative to when the light reached us? (are we seeing the 7 minutes behind?)