He is trying to describe how the low pressure caused by the Bernoulli's principle causes the baseball to curve. Sometimes you have to make your explanation less technical in order to reach a broader audience.
Besides, what is wrong with taking the perspective that the observer is the baseball? How many physics courses have you taken/taught? You can't tel me you have never seen this in examples or problems (especially relativity).
The ice produces a normal force equal to and in the opposite direction of the player's weight. You may have noticed that these forces are perpendicular to the direciton of motion. Friction is always parallel to the direciton of motion.
I really hope that you were trying to be funny and I just didn't get your joke....
I'm sorry. I didn't mean to imply that this is the cause of red-shift. As you pointed out there is another explanation for redshift, the Doppler effect (for the benefit of those who need it - probably not you freshtonic). This is what usually redshifts/blueshifts light that is traveling from a far away star/galaxy. That effect is like a train whistle approaching/receding or like a person riding in a car throwing something forward or backward. Of course the analogy fails slightly since light is always traveling the exact same speed, only its frequency (color) changes.
I was just trying to show the similarity between the 2 ideas. One is due to a traveling source and/or observer, the other is due to an expanding medium.
<Sarcasm> So the Earth's gravitons are pushing at me, and mine at the Earth, so we repel? It must be all the gravitons from space and the atmosphere pushing me down against the Earth then. </Sarcasm>
Hell, Newton was "wrong," but it wasn't the end of the world. In fact, the corrections to his theories led to some amazing discoveries. I would imagine that any theories that "prove" Einstein wrong will lead to some amazing technology themselves. Of course such speculation leads to... Science Fiction (I am not saying it would be wrong - remember that flying to the moon used to be scifi).
Actually, photons can not travel faster than the speed of light - they are light. Although theorectically possible, we have never detected any particle that can travel FTL. However, we have already named them tachyons.
(1) the universe is not expanding at the speed of light (I think that it is less)
(2) the space-time fabric of the universe is not an object anyway, so FTL rules do not apply
It is actually possible for 2 objects to move apart faster than the speed of light even though neither is moving FTL compared to the other. This statement seems to be nonsensical, until you realize that the expansion is a 4D effect. Think of the galaxies (in 2D) as though they were on the surface of a balloon (2D). Now imagine the balloon getting larger (3D effect) at the same time that galaxies are moving farther apart. Now use that analogy with 1 higher dimension. The 2 effects are independent, but both contribute to increasing distance between galazies. As my physics professor once said "Everywhere is getting farther apart."
BTW, this is why the wavelength of the cosmic radiation is getting longer. The cosmic radiation is actually getting stretched (along with everything else) along with the universe. So while the frequency & energy stay the same, the cosmic radiation gets "red-shifted." And since they can surmise the starting wavelength (from Hydrogen energy levels), they can make predictions based on that too.
I hate to tell you this, but only one of his words is mispelled (he meant to use anthro): acheaved instead of achieved. The rest is all grammar mistakes. He used a lot of real words instead of what he meant: your are instead of you are, collage instead of college, excepting instead of accepting.
So you're picking on the wrong guy about spellchecking. However, your second point is correct. His post needed a lot more punctuation. Also, he may not know that he can use br and p html tags to break up his post into separate paragraphs.
BayStar hasn't withdrawn its demand that SCO return its money and BayStar's lawyers, he said, still haven't told SCO's lawyers how SCO breached their contract. So McBride figures BayStar doesn't have a legal leg to stand on and won't be able to get its money back. The money of course is paying for SCO's legal pursuits.
This sounds like when SCO was playing Hide the 8-ball with IBM's "infringing code." (The link is from an article about Autozone vs. SCO.)
750 mL of wine/liquor (we call it a fifth [of a gallon], but they use metric as the official size)
100 kW (watt = 1 joule/second = 1 newton*meter/second = 1 kilogram*meter^2/second^3 : obviously this is a metric unit)
Metric is being used in US. However, Metric will not be accepted until we can measure distance in km, weight in kg, height in m, volumes in L, temperatures in C. When people can think in terms such that the speed limit is 90 kmph, their weight is 80 kg, they are 1.8 meters tall, and their car is only getting 10 km per liter, then meric will be allowed to succeed. Metric can not work in the US unless everyday people use if for everyday things. Until then, we will have to use google to convert (it is 32 C today).
I believe that his article lost [any remaining] credibility when he summed up the opposition:
It should be added that most physicists disagree with Deutsch's conclusion that what is detected in this experiment is another universe. For brevity's sake, the argument against can be summarized as, there is something interfering with the light in this experiment, why does it have to be a parallel universe? Why can't it be just be left to something that we don't yet understand?
By covering up the fact that there is a lot of theory (see, I didn't say it was absolute proof) about what is really going on, he is showing his own insecurity in this "argument." There is a lot of very convincing mathematical theory behind the phenomenon of interferance. Oh, and IAAP (I am a physicist), I just happen to work as a programmer/engineer.
This article is exactly like a subthread in a previous Slashdot post.
Thanks for providing firsthand experience. We don't get enough of that sometimes. (The process was described to me as an intern there, but it sounds like you've actually been involved with it.)
As the article said, they need to come up with a new testing scheme for hybrids and non-hybrids. What kind of sense does it make to only measure the exhaust gases coming out of the car. If that is such an important measurement, then would it be so hard to measure the amount of gasoline that is actually being consumed? I do it at the gas station every time I fill up (granted there could be minor discrepancies between pumps). Start will a full tank. Run the test. Fill the tank. Amount of fuel added = amount of fuel consumed!
One of the claims that I have heard is that hybrids can take advantage of some of the energy lost by breaking. Instead of using only mechanical resistance (friction -> heat), they also use some magnetic resistance (EMF -> voltage) which can be used to recharge the batteries. That is where the "extra" energy is coming from. It is being more efficient, by not wasting as much energy (think recycling).
So are these techniques actually a part of the hybrid cars out there now?
However, the open source strategy is a triple-edge sword. First, most free software such as Linux, (the most popular because of its operating system capability), comes with a license that dictates that any all development of the product (which would have been valuable intellectual property) becomes community property and must subsequently become free as well.
Can someone elaborate on the GPL for me? The article attacks it in such a broad sweep that it ignores the content of the GPL. The fact that the author doesn't even refer to it by name leads me to believe that he is biased against it and/or has no idea what it is.
Without having worked with the GPL in-depth, I had thought that it only applied to software that you distributed, i.e. you didn't have to open the source of in-house software, etc. Are there anyways that a vendor can opt-out of the GPL? I am naively thinking of things such as providing a partial source, paying some license fee to some entity, etc.
I'm also having a little trouble picturing a triple-edge sword that wouldn't be pointless. Maybe he had 2 "points" in his attack, and thought up a 3rd one, but didn't have time/energy/intelligence to come up with a new analogy.
This is great. It could be the first visual evidence of an extrasolar planet. Keep in mind that there are still people who disbelieve the moon-landing, that the earth is round, etc.
I know that there was some digital processing done on these images, but there really is some truth to "seeing is believing" (except for some "news" on the internet). Besides, this is the first attempt. Think of how many great discoveries started out as "not that interesting."
IANAP[atent]L[awyer], but surely there is some protection for a person/organization that unknowingly infringes. Could they not cease the infringing practice from the time of disclosure and/or come to an agreement. Otherwise, it seems like the party that accidentally infringes could be subject to some serious demands/damages.
The cost of a sufficient patent search would be prohibitive to many OSS teams.
IANAD, but I don't think that there is a fixed number. I think that fat cells typically do not die once they are created, so that the number of fat cells is increasing. True they can store a lot of fat (energy), but they probably stay below some reasonable limit and (I guess) would instead divide.
I'm sure that if this drug appears to be really successful, they will try many ways to get it to target specific areas. You will probably have to get an injection or something if you wanted to shrink your love handles specifically.
Slashdot Mirror
He is trying to describe how the low pressure caused by the Bernoulli's principle causes the baseball to curve. Sometimes you have to make your explanation less technical in order to reach a broader audience.
Besides, what is wrong with taking the perspective that the observer is the baseball? How many physics courses have you taken/taught? You can't tel me you have never seen this in examples or problems (especially relativity).
The ice produces a normal force equal to and in the opposite direction of the player's weight. You may have noticed that these forces are perpendicular to the direciton of motion. Friction is always parallel to the direciton of motion.
I really hope that you were trying to be funny and I just didn't get your joke....
Just like Highlander!
I'm sorry. I didn't mean to imply that this is the cause of red-shift. As you pointed out there is another explanation for redshift, the Doppler effect (for the benefit of those who need it - probably not you freshtonic). This is what usually redshifts/blueshifts light that is traveling from a far away star/galaxy. That effect is like a train whistle approaching/receding or like a person riding in a car throwing something forward or backward. Of course the analogy fails slightly since light is always traveling the exact same speed, only its frequency (color) changes.
I was just trying to show the similarity between the 2 ideas. One is due to a traveling source and/or observer, the other is due to an expanding medium.
Hell, Newton was "wrong," but it wasn't the end of the world. In fact, the corrections to his theories led to some amazing discoveries. I would imagine that any theories that "prove" Einstein wrong will lead to some amazing technology themselves. Of course such speculation leads to... Science Fiction (I am not saying it would be wrong - remember that flying to the moon used to be scifi).
Actually, photons can not travel faster than the speed of light - they are light. Although theorectically possible, we have never detected any particle that can travel FTL. However, we have already named them tachyons.
(1) the universe is not expanding at the speed of light (I think that it is less)
(2) the space-time fabric of the universe is not an object anyway, so FTL rules do not apply
It is actually possible for 2 objects to move apart faster than the speed of light even though neither is moving FTL compared to the other. This statement seems to be nonsensical, until you realize that the expansion is a 4D effect. Think of the galaxies (in 2D) as though they were on the surface of a balloon (2D). Now imagine the balloon getting larger (3D effect) at the same time that galaxies are moving farther apart. Now use that analogy with 1 higher dimension. The 2 effects are independent, but both contribute to increasing distance between galazies. As my physics professor once said "Everywhere is getting farther apart."
BTW, this is why the wavelength of the cosmic radiation is getting longer. The cosmic radiation is actually getting stretched (along with everything else) along with the universe. So while the frequency & energy stay the same, the cosmic radiation gets "red-shifted." And since they can surmise the starting wavelength (from Hydrogen energy levels), they can make predictions based on that too.
I hate to tell you this, but only one of his words is mispelled (he meant to use anthro): acheaved instead of achieved. The rest is all grammar mistakes. He used a lot of real words instead of what he meant: your are instead of you are, collage instead of college, excepting instead of accepting.
So you're picking on the wrong guy about spellchecking. However, your second point is correct. His post needed a lot more punctuation. Also, he may not know that he can use br and p html tags to break up his post into separate paragraphs.
One more thing I didn't know. Is that standard practice across Europe? What about Asia, etc.?
- Examples
- 500 mg of Ibuprofin
- 10 cc injection
- 200-meter dash
- 750 mL of wine/liquor (we call it a fifth [of a gallon], but they use metric as the official size)
- 100 kW (watt = 1 joule/second = 1 newton*meter/second = 1 kilogram*meter^2/second^3 : obviously this is a metric unit)
Metric is being used in US. However, Metric will not be accepted until we can measure distance in km, weight in kg, height in m, volumes in L, temperatures in C. When people can think in terms such that the speed limit is 90 kmph, their weight is 80 kg, they are 1.8 meters tall, and their car is only getting 10 km per liter, then meric will be allowed to succeed. Metric can not work in the US unless everyday people use if for everyday things. Until then, we will have to use google to convert (it is 32 C today).By covering up the fact that there is a lot of theory (see, I didn't say it was absolute proof) about what is really going on, he is showing his own insecurity in this "argument." There is a lot of very convincing mathematical theory behind the phenomenon of interferance. Oh, and IAAP (I am a physicist), I just happen to work as a programmer/engineer.
for Longhorn?
(1) Me (26).
(2) Voltron. I'm afraid my reasons would be flamebait.
(3) *Consults Magic 8-ball* "Very Doubtful"
This article is exactly like a subthread in a previous Slashdot post.
Thanks for providing firsthand experience. We don't get enough of that sometimes. (The process was described to me as an intern there, but it sounds like you've actually been involved with it.)
It has ever since Bush took office.
As the article said, they need to come up with a new testing scheme for hybrids and non-hybrids. What kind of sense does it make to only measure the exhaust gases coming out of the car. If that is such an important measurement, then would it be so hard to measure the amount of gasoline that is actually being consumed? I do it at the gas station every time I fill up (granted there could be minor discrepancies between pumps). Start will a full tank. Run the test. Fill the tank. Amount of fuel added = amount of fuel consumed!
One of the claims that I have heard is that hybrids can take advantage of some of the energy lost by breaking. Instead of using only mechanical resistance (friction -> heat), they also use some magnetic resistance (EMF -> voltage) which can be used to recharge the batteries. That is where the "extra" energy is coming from. It is being more efficient, by not wasting as much energy (think recycling).
So are these techniques actually a part of the hybrid cars out there now?
It has to do with the way the milage per gallon is calculated. It's not the same as really driving.
Imagine, this guy was the president of the think tank. Pretty impressive.
However, the open source strategy is a triple-edge sword. First, most free software such as Linux, (the most popular because of its operating system capability), comes with a license that dictates that any all development of the product (which would have been valuable intellectual property) becomes community property and must subsequently become free as well.
Can someone elaborate on the GPL for me? The article attacks it in such a broad sweep that it ignores the content of the GPL. The fact that the author doesn't even refer to it by name leads me to believe that he is biased against it and/or has no idea what it is.
Without having worked with the GPL in-depth, I had thought that it only applied to software that you distributed, i.e. you didn't have to open the source of in-house software, etc. Are there anyways that a vendor can opt-out of the GPL? I am naively thinking of things such as providing a partial source, paying some license fee to some entity, etc.
I'm also having a little trouble picturing a triple-edge sword that wouldn't be pointless. Maybe he had 2 "points" in his attack, and thought up a 3rd one, but didn't have time/energy/intelligence to come up with a new analogy.
This is great. It could be the first visual evidence of an extrasolar planet. Keep in mind that there are still people who disbelieve the moon-landing, that the earth is round, etc.
I know that there was some digital processing done on these images, but there really is some truth to "seeing is believing" (except for some "news" on the internet). Besides, this is the first attempt. Think of how many great discoveries started out as "not that interesting."
IANAP[atent]L[awyer], but surely there is some protection for a person/organization that unknowingly infringes. Could they not cease the infringing practice from the time of disclosure and/or come to an agreement. Otherwise, it seems like the party that accidentally infringes could be subject to some serious demands/damages.
The cost of a sufficient patent search would be prohibitive to many OSS teams.
IANAD, but I don't think that there is a fixed number. I think that fat cells typically do not die once they are created, so that the number of fat cells is increasing. True they can store a lot of fat (energy), but they probably stay below some reasonable limit and (I guess) would instead divide.
I'm sure that if this drug appears to be really successful, they will try many ways to get it to target specific areas. You will probably have to get an injection or something if you wanted to shrink your love handles specifically.