It just so happens that moon's mass does affect the amount of gravitational pull between earth and moon but since the force required to keep a certain mass in an orbit is in the same proportion to mass as gravitational pull (which in this case is the force keeping the moon in orbit) moon's mass get's canceled out.
If you want to further complicate the situation it would be more accurate to say that moon does not orbit earth! In reality moon and earth have elliptical orbits and they both orbit around a point that is somewhere between moon's center and earth's center. So all of the previous talk is just approximation.. If you want to get even more detailed you should take into account relativistic effects too..
If you consider an object of mass m going around the earth at a certain radius r and velocity v the equations are:
Fg=GmM/r^2 and Fr=mv^2/r, where M is earth's mass and G is the gravitational constant.
for a stable orbit Fg = Fr -> GmM/r^2 = mv^2/r
simplifies to -> GM/r^2 = v^2/r
and further -> v^2 = GM/r
So looking at the final simplified equation for an orbiting body we see that it don't matter shit what the mass of that body is! You only need to have a certain speed to keep it on a steady orbit.
If you want something with a little out of the ordinary I'd suggest looking at the classic Feynman Lectures on Physics. These books are old but basic concepts in physics definetly haven't been made obsolete.
Something that would go well with these books are the recordings of the actual lectures that the books are based on. It is one thing to read about it but to have one of the best physics teachers explain everything really makes a difference. If you're lucky you might even find the set of pdfs and mp3s posted somewhere on internet.
You're absolutely correct and I should've definetly worded my last paragraph differently but it was late and blahblah..
I believe that one of the biggest reasons why MIT is not an ivy-league school is that they do not offer any athletic scholarships. And they'll be stuck with their current category until they do so. It is interesting to note that as a matter of fact MIT does not offer any scholarships as such!
All they have is need based financial assistance. Nothing to do with academics, sports, etc. If you got in and can't afford the 40K/year they'll cover up to 100% depending on your need (you do have to prove yourself pretty good) and as one of the few schools in country they do this for international students too.
Fortunately MIT does this a little differently and slightly more hacker proof. They don't rely on any publicly (to any admissions office) available information but assign you with a unique 9-digit id number from the beginning of the application process and all of your online information is tied to this id.
I should point out that you can only view your status (summary of received documents and final decision, nothing else) if you have this id and a last name but to actually update and change information on their information system you require a kerberos identity, the passphrases for which are sent (regular mail) after you're confirmed and accepted admission. I recall that the initial id-number is sent to you via regular mail with a confirmation that they received your application and assigned an interviewer etc.
Basically as long as you're not a complete moron (I think it is safe to assume this if you have been admitted to MIT) you're probably not going to give out your ssl-certificates or give out your id/uname/pw-combo plaintext over internet (and if you do you're totally responsible for all the misuse - they're not going to clear your name).
So I suppose MIT beat all the other ivy-league schools with respect to not getting hacked but then again what should you expect from the home of "hacks".
So they're about to negotiate a new huge deal and want a little leverage..
"You want how much money for a full government xp-upgrade?" "You know, there's no way we can spend that much and, btw., we are strongly considering alternative os's too. Just look at all the media talk about it!" "Please give us your revised offer."
A simple solution for any privacy problems like this is implementing a system of two rates. You don't feel like having a rental car company looking over your shoulder, fine, pay a premium! Don't mind them looking over your shoulder, great, get a discount!
I suppose that due to our rather cheap nature everyone would opt for the latter choice thus making the system of two rates obsolete at introduction but at least you'd have a choice.
Not exactly correct. The metal cases are there to diminish any interference your computer might cause to other electronic devices AND to reduce the interference other electronic devices might cause to your computer! They cannot totally shield your computer but definetly do a better job than not having anything.
Suppose, for instance, that you have an poorly shielded switching power supply. These are not terribly uncommon among cheap computer equipment. Generally it would be a brick that's between your electrical equipment and the outlet. Now take this brick next to a regular monitor (pretty poor shielding here too) and you begin to see nice interference effects! Now guess what happens if you have something similiar next to your unshielded computer.
You don't even need to consider anything related to memory but just the hard drive cables at udma speeds of 33 and over are highly suspectible to noise! It won't take very long until your computer is pretty much locked up and you got corrupted data on your hard drives. I've even had problems from using bad udma-cables (all the problems disappeared when I just got new cables) due to electrical noise probably generated by the fans or other hard drives or the powersupply.. who knows.
The fact is that solar radiation isn't going to do much to your computer (satellites are affected, however) unless you live in polar area and the flares leake from Van Allen belts, but that's a different story. Not shielding your computer is a bad thing because of not only the interference it creates but also the interference it receives..
Now if only Akihabara was affordable. I was there last March and I'd swear that things there that were also available in USA were cheaper on internet from american companies/importers.. Then again they had shitloads of stuff that you can only dream about in USA.. and there's few states in usa that don't charge sales tax too.
Re:Linux/Windows Texas Cage Match
on
Draw!
·
· Score: 2
As an experiment: Try to download eminem's without me from gnutella. You get a lot of matches but only a small percentage of files are working.
It seems like someone is running a bot that's looking over what kind of eminem files are being shared. After this it uses the name and file size to share the same file except with random data.
Gnucleus combines files with same size and name for multipart downloading and thus is deeply affected by this. Even if some part is correct chances are that it is going to discard that specific part (overlap test) and use the corrupted data. If whoever is doing this has a fast connection and accepts a lot of downloads they can seriously affect the ability to transfer specific files.
It does emit ir. I tried one by going into a dark bathroom and turning it on. When pointed to a mirror you can clearly see a lightsource in the front of the camera. It is much like using a flashlight to illuminate and the filmed material strongly reflects this.
How about you think for few minutes before ranting. Nvidia is already giving you a license to use the patents by providing the binary drivers. If you weren't allowed to use their patented processes all those cards would be rather worthless.
I believe that GPL'd software must be patent free or the patents must be automatically licensed to all the recipients of the software.. There are other open-source licenses, however.
The nice things with patents is that you can say: Look, this is our method and we have exclusive access to it. We spent a lot of money developing this and now you can look but can't touch/use it or we'll sue you to oblivion..
And did I with even one word suggest that their closed sourceness could not have resulted from something else than patents. The point of my whole post was that using patents as an excuse is pretty lame for the reasons I mentioned before. Sure, they can have confidentiality agreements, trade secrets and whatnot included in their source code..
MPEG2 acceleration really just means that the hardware can scale the picture and convert from yuv to rgb in realtime. Directdraw has interfaces for these functions and they're utilised accordingly..
I don't really buy the patent thing since patents are "open source" by default. March into the patent office and ask to see a patent. Or check patents from one of the websites that have them archived. With a patent you're actually disclosing the method..
Having used this quite a bit I can say that even though it is a pretty good deal it is still far from perfect. This Jensen unit works fairly well but as it is analog it is suspect to the limitations of analog technology, ie. you will hear static moving around the house and yard. If they had made this digital it would be near perfect.
One of my goals was to provide a wireless link for three persons to listen simultaneously up to a distance of about 100-150feet and this did work quite well. Having people be able to use their own headphones was big plus and actually a requirement.
It did take me quite a few days to find this baby so I would not flame the original poster too much. I just wish that people would just use usenet for things it is best suited for and bother slashdot with something more geeky..(ie. digital spread spectrum version of this would be geeky enough..)
Microsoft is losing money on each XBox made hoping to recoup it in game licensing. By buying one of these and using with linux exclusively you effectively take away money from microsoft. Then again they have some 40 billion in bank..
Yes. This is indeed true. One of the more common form of bacteria that will take advantage of this is Candidiaisis that can conquer an upset balance of good and bad bacteria fairly quickly and cause much concern(not that harmful in long run). Candidiaisis is, however, more of a cause of poor hygiene or using too broad antibiotics as they are almost ever present in human beings..
you know.. Even flu viruses generally need something to help them in. It's not the cold air that makes you sick but the sudden drop in your immune system's ability to counter attack the virus because of cold air's irritation in your throat..
Suppose you were, for a period of time, in a virus free environment that's way too cold for humans to normally live in and there were no airborne (or living in your body) viruses around. Even though you think that you'd catch a cold you wouldn't get sick.. Once the irritation settled you'd be fine.. there was nothing to take advantage of it.
Bacterial balance is very important in human beings. Using too broad antibiotics is a major concern. Heck there's even a joke at the onion about antibiotics saying how americas people get most of their antibiotics from mcdonald's and it might be more true than you think except you are more likely to get resistant bacteria then "useful" antibiotics..
Bacteria can get resistant to antibiotics put there'll always be something antibacterial that'll kill it..
Consider a soap that's 70% ethanol. Just applying that ethanol over bacteria will kill it. Doctors don't use pure ethanol for disinfecting instruments for nothing.
Yes, boicott overuse of antibiotics but definetly do not hesitate to use other means of antibacterial products. Overprotecting your living enviroment is bad because it leads to poor immune system but being rational with this never hurts..
Oh, try taking a small dose of arsenic every day and watch your health detoriate over time.. Everything doesn't make you stronger. That's how they got Napoleon, anyway.
Slashdot Mirror
It just so happens that moon's mass does affect the amount of gravitational pull between earth and moon but since the force required to keep a certain mass in an orbit is in the same proportion to mass as gravitational pull (which in this case is the force keeping the moon in orbit) moon's mass get's canceled out.
If you want to further complicate the situation it would be more accurate to say that moon does not orbit earth! In reality moon and earth have elliptical orbits and they both orbit around a point that is somewhere between moon's center and earth's center. So all of the previous talk is just approximation.. If you want to get even more detailed you should take into account relativistic effects too..
Well you're talking complete bullshit too!
If you consider an object of mass m going around the earth at a certain radius r and velocity v the equations are:
Fg=GmM/r^2 and Fr=mv^2/r,
where M is earth's mass and G is the gravitational constant.
for a stable orbit Fg = Fr
-> GmM/r^2 = mv^2/r
simplifies to
-> GM/r^2 = v^2/r
and further
-> v^2 = GM/r
So looking at the final simplified equation for an orbiting body we see that it don't matter shit what the mass of that body is! You only need to have a certain speed to keep it on a steady orbit.
If you want something with a little out of the ordinary I'd suggest looking at the classic Feynman Lectures on Physics. These books are old but basic concepts in physics definetly haven't been made obsolete.
Something that would go well with these books are the recordings of the actual lectures that the books are based on. It is one thing to read about it but to have one of the best physics teachers explain everything really makes a difference. If you're lucky you might even find the set of pdfs and mp3s posted somewhere on internet.
Just make sure it has a vibrating alert and she might even want you to page her.. :-)
Heheh.. good thing to get my facts straight before starting school so at least I don't make a fool out of myself over there.. =)
You're absolutely correct and I should've definetly worded my last paragraph differently but it was late and blahblah..
I believe that one of the biggest reasons why MIT is not an ivy-league school is that they do not offer any athletic scholarships. And they'll be stuck with their current category until they do so. It is interesting to note that as a matter of fact MIT does not offer any scholarships as such!
All they have is need based financial assistance. Nothing to do with academics, sports, etc. If you got in and can't afford the 40K/year they'll cover up to 100% depending on your need (you do have to prove yourself pretty good) and as one of the few schools in country they do this for international students too.
Fortunately MIT does this a little differently and slightly more hacker proof. They don't rely on any publicly (to any admissions office) available information but assign you with a unique 9-digit id number from the beginning of the application process and all of your online information is tied to this id.
I should point out that you can only view your status (summary of received documents and final decision, nothing else) if you have this id and a last name but to actually update and change information on their information system you require a kerberos identity, the passphrases for which are sent (regular mail) after you're confirmed and accepted admission. I recall that the initial id-number is sent to you via regular mail with a confirmation that they received your application and assigned an interviewer etc.
Basically as long as you're not a complete moron (I think it is safe to assume this if you have been admitted to MIT) you're probably not going to give out your ssl-certificates or give out your id/uname/pw-combo plaintext over internet (and if you do you're totally responsible for all the misuse - they're not going to clear your name).
So I suppose MIT beat all the other ivy-league schools with respect to not getting hacked but then again what should you expect from the home of "hacks".
So they're about to negotiate a new huge deal and want a little leverage..
"You want how much money for a full government xp-upgrade?"
"You know, there's no way we can spend that much and, btw., we are strongly considering alternative os's too. Just look at all the media talk about it!"
"Please give us your revised offer."
A simple solution for any privacy problems like this is implementing a system of two rates. You don't feel like having a rental car company looking over your shoulder, fine, pay a premium! Don't mind them looking over your shoulder, great, get a discount!
I suppose that due to our rather cheap nature everyone would opt for the latter choice thus making the system of two rates obsolete at introduction but at least you'd have a choice.
Not exactly correct. The metal cases are there to diminish any interference your computer might cause to other electronic devices AND to reduce the interference other electronic devices might cause to your computer! They cannot totally shield your computer but definetly do a better job than not having anything.
Suppose, for instance, that you have an poorly shielded switching power supply. These are not terribly uncommon among cheap computer equipment. Generally it would be a brick that's between your electrical equipment and the outlet. Now take this brick next to a regular monitor (pretty poor shielding here too) and you begin to see nice interference effects! Now guess what happens if you have something similiar next to your unshielded computer.
You don't even need to consider anything related to memory but just the hard drive cables at udma speeds of 33 and over are highly suspectible to noise! It won't take very long until your computer is pretty much locked up and you got corrupted data on your hard drives. I've even had problems from using bad udma-cables (all the problems disappeared when I just got new cables) due to electrical noise probably generated by the fans or other hard drives or the powersupply.. who knows.
The fact is that solar radiation isn't going to do much to your computer (satellites are affected, however) unless you live in polar area and the flares leake from Van Allen belts, but that's a different story. Not shielding your computer is a bad thing because of not only the interference it creates but also the interference it receives..
"Or imagine being magically whisked away to... Delaware. 'Hi, I'm in Delaware.'"
Newark rulez.. Not! Glad I'm not there anymore..
Just about only positive things were the lack of sales tax and decent weather.. YMMV.
Now if only Akihabara was affordable. I was there last March and I'd swear that things there that were also available in USA were cheaper on internet from american companies/importers.. Then again they had shitloads of stuff that you can only dream about in USA.. and there's few states in usa that don't charge sales tax too.
But what about clippy?
As an experiment:
Try to download eminem's without me from gnutella. You get a lot of matches but only a small percentage of files are working.
It seems like someone is running a bot that's looking over what kind of eminem files are being shared. After this it uses the name and file size to share the same file except with random data.
Gnucleus combines files with same size and name for multipart downloading and thus is deeply affected by this. Even if some part is correct chances are that it is going to discard that specific part (overlap test) and use the corrupted data. If whoever is doing this has a fast connection and accepts a lot of downloads they can seriously affect the ability to transfer specific files.
It does emit ir. I tried one by going into a dark bathroom and turning it on. When pointed to a mirror you can clearly see a lightsource in the front of the camera. It is much like using a flashlight to illuminate and the filmed material strongly reflects this.
How about you think for few minutes before ranting. Nvidia is already giving you a license to use the patents by providing the binary drivers. If you weren't allowed to use their patented processes all those cards would be rather worthless.
I believe that GPL'd software must be patent free or the patents must be automatically licensed to all the recipients of the software.. There are other open-source licenses, however.
The nice things with patents is that you can say: Look, this is our method and we have exclusive access to it. We spent a lot of money developing this and now you can look but can't touch/use it or we'll sue you to oblivion..
And did I with even one word suggest that their closed sourceness could not have resulted from something else than patents. The point of my whole post was that using patents as an excuse is pretty lame for the reasons I mentioned before. Sure, they can have confidentiality agreements, trade secrets and whatnot included in their source code..
MPEG2 acceleration really just means that the hardware can scale the picture and convert from yuv to rgb in realtime. Directdraw has interfaces for these functions and they're utilised accordingly..
I don't really buy the patent thing since patents are "open source" by default. March into the patent office and ask to see a patent. Or check patents from one of the websites that have them archived. With a patent you're actually disclosing the method..
Having used this quite a bit I can say that even though it is a pretty good deal it is still far from perfect. This Jensen unit works fairly well but as it is analog it is suspect to the limitations of analog technology, ie. you will hear static moving around the house and yard. If they had made this digital it would be near perfect.
One of my goals was to provide a wireless link for three persons to listen simultaneously up to a distance of about 100-150feet and this did work quite well. Having people be able to use their own headphones was big plus and actually a requirement.
It did take me quite a few days to find this baby so I would not flame the original poster too much. I just wish that people would just use usenet for things it is best suited for and bother slashdot with something more geeky..(ie. digital spread spectrum version of this would be geeky enough..)
You misunderstood.
Considering how often windows crashes, he meant all the customers would be dead.
Microsoft is losing money on each XBox made hoping to recoup it in game licensing. By buying one of these and using with linux exclusively you effectively take away money from microsoft. Then again they have some 40 billion in bank..
Yes. This is indeed true. One of the more common form of bacteria that will take advantage of this is Candidiaisis that can conquer an upset balance of good and bad bacteria fairly quickly and cause much concern(not that harmful in long run). Candidiaisis is, however, more of a cause of poor hygiene or using too broad antibiotics as they are almost ever present in human beings..
you know.. Even flu viruses generally need something to help them in. It's not the cold air that makes you sick but the sudden drop in your immune system's ability to counter attack the virus because of cold air's irritation in your throat..
Suppose you were, for a period of time, in a virus free environment that's way too cold for humans to normally live in and there were no airborne (or living in your body) viruses around. Even though you think that you'd catch a cold you wouldn't get sick.. Once the irritation settled you'd be fine.. there was nothing to take advantage of it.
Bacterial balance is very important in human beings. Using too broad antibiotics is a major concern. Heck there's even a joke at the onion about antibiotics saying how americas people get most of their antibiotics from mcdonald's and it might be more true than you think except you are more likely to get resistant bacteria then "useful" antibiotics..
Yeah.. I'm aware of the controversy about arsenic and Napoleon, but still I dare you to try taking a dosage of arsenic daily and see what happens.. :-)
Antibacterial != Antibiotic
Bacteria can get resistant to antibiotics put there'll always be something antibacterial that'll kill it..
Consider a soap that's 70% ethanol. Just applying that ethanol over bacteria will kill it. Doctors don't use pure ethanol for disinfecting instruments for nothing.
Yes, boicott overuse of antibiotics but definetly do not hesitate to use other means of antibacterial products. Overprotecting your living enviroment is bad because it leads to poor immune system but being rational with this never hurts..
Oh, try taking a small dose of arsenic every day and watch your health detoriate over time.. Everything doesn't make you stronger. That's how they got Napoleon, anyway.
Oh sure.. women's moods don't have any cycles. Honestly.