We don't have to calculate it, we can measure it. From this page:
This paleontological evidence comes in the form of tidal rhythmites, also known as tidally laminated sediments. Rhythmites have been subjected to intense scrutiny over the last decade or so, and have returned strong results. Williams (1990) reports that 650 million years ago, the lunar rate of retreat was 1.95±0.29 cm/year, and that over the period from 2.5 billion to 650 million years ago, the mean recession rate was 1.27 cm/year. Williams reanalyzed the same data set later (Williams, 1997), showing a mean recession rate of 2.16 cm/year in the period between now and 650 million years ago. That these kinds of data are reliable is demonstrated by Archer (1996). There is also a very good review of the earlier paleontological evidence by Lambeck (1980, chapter 11, paleorotation)
Another common use is the material that they put on kids & workout clothing so that they show up well at night. The light from the car headlamps hits the material, is reflected back parallel to the original beam, and thus the driver can see the kiddies before he hits them.
There is no theory which dictates the distance from earth to moon on the millimeter scale, therefore there is no check on our observations.
Yes there is. Newton's laws, modified by relativity, and a big of geometry allow you to calculate the distance using only the mass of the earth and the orbital period. In theory, if you had the mass & the orbital period known to enough accuracy, then you could calculate the distance.
The newtonian formulas are:
a=v^2/r, a=acceleration, v=orbital velocity, r=radius.
a = G m / r^2, G=Newton's constant, m = mass
v=circumfrence / orbital period
With known m & orbital period then you can solve for r.
Of course, in real life, it's going to be much easier to measure the distance to the moon than the mass of the Earth, and the theory ignores the influence of the rest of the universe, so it's not going to be 100% accurate, so even in Newton's time they measured it, except they used parallax methods.
Even if it wasn't receeding, it would still change. The orbit isn't the theoretical perfect elipse, which could only happen in a universe with only two objects. In ours, the Sun pulls the Moon towards it more when they're closer than when they're futher apart, so the orbit is biased towards the sun. This also happens to a smaller extent with all the other planets, though you can almost ignore it.
Or even better, in the language used by the relevent field. If it's a computer patent, then it's ok to talk about NP complete. If it's an engineering patent then it's ok to talk about Tensile Strength.
Re:This isn't a backdown, this is a CYA
on
Borland Backs Down
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· Score: 2
Enterprise customers usually have their lawyers negotigate with the suppliers lawyers, and work out a contract which is mutally acceptable. That's usually meaning striking out certain clauses, and modifing others. The upshot is that the original contract is horrible, with everything they could possible ask for thrown in.
Traceroute is very expensive in terms of time, requiring a lot of packets to be sent out, and waiting on replies and on Unix based OS's, requires the program to have root privligages. It also doesn't really solve the problem. A server 7 hops from you can be on a congested link, or running on a really slow server, while a server 9 hops from you can be on a fast server with lots of bandwidth.
In the US, copyright is created "To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries". If they are being paid to progress, through grants, then why do they need the copyright? On the other hand, if they benefit from the copyright why get the grants?
Mac's and Windows's & KDE & Gnome are compatable, in the same sense that cars are compatable. If I know how to drive a Mac, then I can drive a Windows box. I might not know all the details, same as I might not know how to get the radio stations programmed in the car, but these are minor irritants to the major problem of actually getting from A to B. Internally they're all different, I can't take a (non-Java) program from a Mac to a Windows box, but then neither can I take the battery from a BMW to a Ford.
Furthermore, the root servers (again, from the article, don't flame me if I'm missing a nuance or two) don't really DO much. They just tell you where to go to get info for each of the top-level domains. Not exactly a whole lot to running one of these other than keeping it from crashing.
What a root server doesn't isn't very hard. What is hard is keeping the damm thing running. They a high load (every DNS server in the world hits once once a day for each TLD), they get all sorts of script kiddies hitting them, and because of their profile, it's very hard to make changes.
It reminds me very much of Discovery 1. It would be interesting to know if the designers were thinking of this, or if it's simply a case of the same reasoning forcing the same design.
baroque design decisions that were made 20 years ago
Actually it's more like 30 years ago. The 4004 was introduced in 1971, the 8008 in 1972, the 8080 in 1974, and the 8086 in 1978. In going from the 4004 to the 8086, there was always a certain amount of compatability, either direct binary compatability, or the ability to mechanically translate instructions from one set to the next.
I am a technical person. MQ's latency is quite low, and perfectly suitable for developing websites. I can say this mainly because I have websites which are based upon MQ.
Yet, you can kill that many people with anthrax by spraying it into the air with a leaf blower upwind from a small city. How about feeding a supply into the ventilation system of the next domed stadium hosting a playoff game? That's not "hundreds of thousands" but its a heluva lot worse than 5, which wasn't quite enough for the original poster.
Neither of which would be affected by the USPO irradiating packages. First decide what problem you're trying to solve, then work out what actions you can take to solve those problems.
Sounds to me like the right decision has been made. MQ supports Sun's, AS/400's and 390's, as well as NT. COM only supports NT. There are lots of solutions for COM/MQ interchange, so the problem is definatly solvable.
With DTH satellite broadcasting, Cable has competition. DirecTV have a 105 channel for $32 a month, plus the one time cost of the dish. Similarly for XP, as the cost increases, the desirability of alternatives increases. That means Linux & Macs.
Classical music, at least the stuff which is old enough to be public domain has a very different profile to popular music. Because anyone can record a sonata by Beethoven, then there is great competition between the people who do, and that's great for the consumer. I can buy a CD from a very famous orchestra, or I can buy a CD from a less famous orchestra, or I can even download an MP3 from mp3.com, all of the exact same piece. As economics says, if there is competition, then the price is going to drop.
Re:Economic imbalance is the issue here
on
The Drone War
·
· Score: 2
I don't think this builds to a future where robots fight each other and we sit at home and wait for the outcome.
Slashdot Mirror
This paleontological evidence comes in the form of tidal rhythmites, also known as tidally laminated sediments. Rhythmites have been subjected to intense scrutiny over the last decade or so, and have returned strong results. Williams (1990) reports that 650 million years ago, the lunar rate of retreat was 1.95±0.29 cm/year, and that over the period from 2.5 billion to 650 million years ago, the mean recession rate was 1.27 cm/year. Williams reanalyzed the same data set later (Williams, 1997), showing a mean recession rate of 2.16 cm/year in the period between now and 650 million years ago. That these kinds of data are reliable is demonstrated by Archer (1996). There is also a very good review of the earlier paleontological evidence by Lambeck (1980, chapter 11, paleorotation)
Another common use is the material that they put on kids & workout clothing so that they show up well at night. The light from the car headlamps hits the material, is reflected back parallel to the original beam, and thus the driver can see the kiddies before he hits them.
And that's assuming that the rate is constant. In actual fact it's not, it's increased over time.
Yes there is. Newton's laws, modified by relativity, and a big of geometry allow you to calculate the distance using only the mass of the earth and the orbital period. In theory, if you had the mass & the orbital period known to enough accuracy, then you could calculate the distance.
The newtonian formulas are:
a=v^2/r, a=acceleration, v=orbital velocity, r=radius.
a = G m / r^2, G=Newton's constant, m = mass
v=circumfrence / orbital period
With known m & orbital period then you can solve for r.
Of course, in real life, it's going to be much easier to measure the distance to the moon than the mass of the Earth, and the theory ignores the influence of the rest of the universe, so it's not going to be 100% accurate, so even in Newton's time they measured it, except they used parallax methods.
Even if it wasn't receeding, it would still change. The orbit isn't the theoretical perfect elipse, which could only happen in a universe with only two objects. In ours, the Sun pulls the Moon towards it more when they're closer than when they're futher apart, so the orbit is biased towards the sun. This also happens to a smaller extent with all the other planets, though you can almost ignore it.
Or even better, in the language used by the relevent field. If it's a computer patent, then it's ok to talk about NP complete. If it's an engineering patent then it's ok to talk about Tensile Strength.
Enterprise customers usually have their lawyers negotigate with the suppliers lawyers, and work out a contract which is mutally acceptable. That's usually meaning striking out certain clauses, and modifing others. The upshot is that the original contract is horrible, with everything they could possible ask for thrown in.
Traceroute is very expensive in terms of time, requiring a lot of packets to be sent out, and waiting on replies and on Unix based OS's, requires the program to have root privligages. It also doesn't really solve the problem. A server 7 hops from you can be on a congested link, or running on a really slow server, while a server 9 hops from you can be on a fast server with lots of bandwidth.
1: No-one with the suitable skills has looked at the problem, and done the work to reimplement it.
2: No-one is experiencing the problem, so there is no pressure to fix it.
You think that closed source software "Just Works"? I'm busy trying to get a $100,000 product, with $30,000 a year software support working.
In the US, copyright is created "To promote the Progress of Science and useful Arts, by securing for limited Times to Authors and Inventors the exclusive Right to their respective Writings and Discoveries". If they are being paid to progress, through grants, then why do they need the copyright? On the other hand, if they benefit from the copyright why get the grants?
Mac's and Windows's & KDE & Gnome are compatable, in the same sense that cars are compatable. If I know how to drive a Mac, then I can drive a Windows box. I might not know all the details, same as I might not know how to get the radio stations programmed in the car, but these are minor irritants to the major problem of actually getting from A to B. Internally they're all different, I can't take a (non-Java) program from a Mac to a Windows box, but then neither can I take the battery from a BMW to a Ford.
What a root server doesn't isn't very hard. What is hard is keeping the damm thing running. They a high load (every DNS server in the world hits once once a day for each TLD), they get all sorts of script kiddies hitting them, and because of their profile, it's very hard to make changes.
It reminds me very much of Discovery 1. It would be interesting to know if the designers were thinking of this, or if it's simply a case of the same reasoning forcing the same design.
Actually it's more like 30 years ago. The 4004 was introduced in 1971, the 8008 in 1972, the 8080 in 1974, and the 8086 in 1978. In going from the 4004 to the 8086, there was always a certain amount of compatability, either direct binary compatability, or the ability to mechanically translate instructions from one set to the next.
I am a technical person. MQ's latency is quite low, and perfectly suitable for developing websites. I can say this mainly because I have websites which are based upon MQ.
This would be the HD that consumers are staying away form in droves?
I'd bet that if you counted it up, more than 5 people died in fires caused by frying equipment.
Neither of which would be affected by the USPO irradiating packages. First decide what problem you're trying to solve, then work out what actions you can take to solve those problems.
Shouldn't it be spelt iVe?
Sounds to me like the right decision has been made. MQ supports Sun's, AS/400's and 390's, as well as NT. COM only supports NT. There are lots of solutions for COM/MQ interchange, so the problem is definatly solvable.
With DTH satellite broadcasting, Cable has competition. DirecTV have a 105 channel for $32 a month, plus the one time cost of the dish. Similarly for XP, as the cost increases, the desirability of alternatives increases. That means Linux & Macs.
They will if they learn that that means that they can play it in their car, on their office PC, or use their Mac to burn their own cuts.
Classical music, at least the stuff which is old enough to be public domain has a very different profile to popular music. Because anyone can record a sonata by Beethoven, then there is great competition between the people who do, and that's great for the consumer. I can buy a CD from a very famous orchestra, or I can buy a CD from a less famous orchestra, or I can even download an MP3 from mp3.com, all of the exact same piece. As economics says, if there is competition, then the price is going to drop.
Phillip K. Dick, Second Variety.