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Re: Colts vs Pats AFC Title Game
They could've said Aaron Hernandez did it that would be more believable than this.
They could've said Aaron Hernandez did it that would be more believable than this.
The Rules of Pacers Digest
Hello everyone,
Whether your are a long standing forum member or whether you have just registered today, it's a good idea to read and review the rules below so that you have a very good idea of what to expect when you come to Pacers Digest.
A quick note to new members: Your posts will not immediately show up when you make them. An administrator has to approve at least your first post before the forum software will later upgrade your account to the status of a fully-registered member. This usually happens within a couple of hours or so after your post(s) is/are approved, so you may need to be a little patient at first.
Why do we do this? So that it's more difficult for spammers (be they human or robot) to post, and so users who are banned cannot immediately re-register and start dousing people with verbal flames.
Below are the rules of Pacers Digest. After you have read them, you will have a very good sense of where we are coming from, what we expect, what we don't want to see, and how we react to things.
Rule #1
Pacers Digest is intended to be a place to discuss basketball without having to deal with the kinds of behaviors or attitudes that distract people from sticking with the discussion of the topics at hand. These unwanted distractions can come in many forms, and admittedly it can sometimes be tricky to pin down each and every kind that can rear its ugly head, but we feel that the following examples and explanations cover at least a good portion of that ground and should at least give people a pretty good idea of the kinds of things we actively discourage:
"Anyone who __________ is a liar / a fool / an idiot / a blind homer / has their head buried in the sand / a blind hater / doesn't know basketball / doesn't watch the games"
"People with intelligence will agree with me when I say that __________"
"Only stupid people think / believe / do ___________"
"I can't wait to hear something from PosterX when he/she sees that **insert a given incident or current event that will have probably upset or disappointed PosterX here**"
"He/she is just delusional"
"This thread is stupid / worthless / embarrassing"
"I'm going to take a moment to point and
/ laugh at PosterX / GroupOfPeopleY who thought / believed *insert though/belief here*"
"Remember when PosterX said OldCommentY that no longer looks good?"
In general, if a comment goes from purely on topic to something 'ad hominem' (personal jabs, personal shots, attacks, flames, however you want to call it, towards a person, or a group of people, or a given city/state/country of people), those are most likely going to be found intolerable.
We also dissuade passive aggressive behavior. This can be various things, but common examples include statements that are basically meant to imply someone is either stupid or otherwise incapable of holding a rational conversation. This can include (but is not limited to) laughing at someone's conclusions rather than offering an honest rebuttal, asking people what game they were watching, or another common problem is Poster X will say "that player isn't that bad" and then Poster Y will say something akin to "LOL you think that player is good". We're not going to tolerate those kinds of comments out of respect for the community at large and for the sake of trying to just have an honest conversation.
Now, does the above cover absolutely every single kind of distraction that is unwanted? Probably not, but you should by now have a good idea of the general types of things we will be discouraging. The above examples are meant to give you a good feel for / idea of what we're looking for. If something new or different than the above happens to come along and results in the same problem (that being, any other attitude or behavior that ultimately distracts from actually just discussing the topic at hand, or that is otherwise disrespectful to other posters), we can and we will take action to curb this as well, so please don't take this to mean that if you managed to technically avoid saying something exactly like one of the above examples that you are then somehow off the hook.
That all having been said, our goal is to do so in a generally kind and respectful way, and that doesn't mean the moment we see something we don't like that somebody is going to be suspended or banned, either. It just means that at the very least we will probably say something about it, quite possibly snipping out the distracting parts of the post in question while leaving alone the parts that are actually just discussing the topics, and in the event of a repeating or excessive problem, then we will start issuing infractions to try to further discourage further repeat problems, and if it just never seems to improve, then finally suspensions or bans will come into play. We would prefer it never went that far, and most of the time for most of our posters, it won't ever have to.
A slip up every once and a while is pretty normal, but, again, when it becomes repetitive or excessive, something will be done. Something occasional is probably going to be let go (within reason), but when it starts to become habitual or otherwise a pattern, odds are very good that we will step in.
There's always a small minority that like to push people's buttons and/or test their own boundaries with regards to the administrators, and in the case of someone acting like that, please be aware that this is not a court of law, but a private website run by people who are simply trying to do the right thing as they see it. If we feel that you are a special case that needs to be dealt with in an exceptional way because your behavior isn't explicitly mirroring one of our above examples of what we generally discourage, we can and we will take atypical action to prevent this from continuing if you are not cooperative with us.
Also please be aware that you will not be given a pass simply by claiming that you were 'only joking,' because quite honestly, when someone really is just joking, for one thing most people tend to pick up on the joke, including the person or group that is the target of the joke, and for another thing, in the event where an honest joke gets taken seriously and it upsets or angers someone, the person who is truly 'only joking' will quite commonly go out of his / her way to apologize and will try to mend fences. People who are dishonest about their statements being 'jokes' do not do so, and in turn that becomes a clear sign of what is really going on. It's nothing new.
In any case, quite frankly, the overall quality and health of the entire forum's community is more important than any one troublesome user will ever be, regardless of exactly how a problem is exhibiting itself, and if it comes down to us having to make a choice between you versus the greater health and happiness of the entire community, the community of this forum will win every time.
Lastly, there are also some posters, who are generally great contributors and do not otherwise cause any problems, who sometimes feel it's their place to provoke or to otherwise 'mess with' that small minority of people described in the last paragraph, and while we possibly might understand why you might feel you WANT to do something like that, the truth is we can't actually tolerate that kind of behavior from you any more than we can tolerate the behavior from them. So if we feel that you are trying to provoke those other posters into doing or saying something that will get themselves into trouble, then we will start to view you as a problem as well, because of the same reason as before: The overall health of the forum comes first, and trying to stir the pot with someone like that doesn't help, it just makes it worse. Some will simply disagree with this philosophy, but if so, then so be it because ultimately we have to do what we think is best so long as it's up to us.
If you see a problem that we haven't addressed, the best and most appropriate course for a forum member to take here is to look over to the left of the post in question. See underneath that poster's name, avatar, and other info, down where there's a little triangle with an exclamation point (!) in it? Click that. That allows you to report the post to the admins so we can definitely notice it and give it a look to see what we feel we should do about it. Beyond that, obviously it's human nature sometimes to want to speak up to the poster in question who has bothered you, but we would ask that you try to refrain from doing so because quite often what happens is two or more posters all start going back and forth about the original offending post, and suddenly the entire thread is off topic or otherwise derailed. So while the urge to police it yourself is understandable, it's best to just report it to us and let us handle it. Thank you!
All of the above is going to be subject to a case by case basis, but generally and broadly speaking, this should give everyone a pretty good idea of how things will typically / most often be handled.
Rule #2
If the actions of an administrator inspire you to make a comment, criticism, or express a concern about it, there is a wrong place and a couple of right places to do so.
The wrong place is to do so in the original thread in which the administrator took action. For example, if a post gets an infraction, or a post gets deleted, or a comment within a larger post gets clipped out, in a thread discussing Paul George, the wrong thing to do is to distract from the discussion of Paul George by adding your off topic thoughts on what the administrator did.
The right places to do so are:
A) Start a thread about the specific incident you want to talk about on the Feedback board. This way you are able to express yourself in an area that doesn't throw another thread off topic, and this way others can add their two cents as well if they wish, and additionally if there's something that needs to be said by the administrators, that is where they will respond to it.
B) Send a private message to the administrators, and they can respond to you that way.
If this is done the wrong way, those comments will be deleted, and if it's a repeating problem then it may also receive an infraction as well.
Rule #3
If a poster is bothering you, and an administrator has not or will not deal with that poster to the extent that you would prefer, you have a powerful tool at your disposal, one that has recently been upgraded and is now better than ever: The ability to ignore a user.
When you ignore a user, you will unfortunately still see some hints of their existence (nothing we can do about that), however, it does the following key things:
A) Any post they make will be completely invisible as you scroll through a thread.
B) The new addition to this feature: If someone QUOTES a user you are ignoring, you do not have to read who it was, or what that poster said, unless you go out of your way to click on a link to find out who it is and what they said.
To utilize this feature, from any page on Pacers Digest, scroll to the top of the page, look to the top right where it says 'Settings' and click that. From the settings page, look to the left side of the page where it says 'My Settings', and look down from there until you see 'Edit Ignore List' and click that. From here, it will say 'Add a Member to Your List...' Beneath that, click in the text box to the right of 'User Name', type in or copy & paste the username of the poster you are ignoring, and once their name is in the box, look over to the far right and click the 'Okay' button. All done!
Rule #4
Regarding infractions, currently they carry a value of one point each, and that point will expire in 31 days. If at any point a poster is carrying three points at the same time, that poster will be suspended until the oldest of the three points expires.
Rule #5
When you share or paste content or articles from another website, you must include the URL/link back to where you found it, who wrote it, and what website it's from. Said content will be removed if this doesn't happen.
An example:
If I copy and paste an article from the Indianapolis Star website, I would post something like this:
http://www.linktothearticlegoeshere.com/article
Title of the Article
Author's Name
Indianapolis Star
Rule #6
We cannot tolerate illegal videos on Pacers Digest. This means do not share any links to them, do not mention any websites that host them or link to them, do not describe how to find them in any way, and do not ask about them. Posts doing anything of the sort will be removed, the offenders will be contacted privately, and if the problem becomes habitual, you will be suspended, and if it still persists, you will probably be banned.
The legal means of watching or listening to NBA games are NBA League Pass Broadband (for US, or for International; both cost money) and NBA Audio League Pass (which is free). Look for them on NBA.com.
Rule #7
Provocative statements in a signature, or as an avatar, or as the 'tagline' beneath a poster's username (where it says 'Member' or 'Administrator' by default, if it is not altered) are an unwanted distraction that will more than likely be removed on sight. There can be shades of gray to this, but in general this could be something political or religious that is likely going to provoke or upset people, or otherwise something that is mean-spirited at the expense of a poster, a group of people, or a population.
It may or may not go without saying, but this goes for threads and posts as well, particularly when it's not made on the off-topic board (Market Square).
We do make exceptions if we feel the content is both innocuous and unlikely to cause social problems on the forum (such as wishing someone a Merry Christmas or a Happy Easter), and we also also make exceptions if such topics come up with regards to a sports figure (such as the Lance Stephenson situation bringing up discussions of domestic abuse and the law, or when Jason Collins came out as gay and how that lead to some discussion about gay rights).
However, once the discussion seems to be more/mostly about the political issues instead of the sports figure or his specific situation, the thread is usually closed.
Rule #8
We prefer self-restraint and/or modesty when making jokes or off topic comments in a sports discussion thread. They can be fun, but sometimes they derail or distract from a topic, and we don't want to see that happen. If we feel it is a problem, we will either delete or move those posts from the thread.
Rule #9
Generally speaking, we try to be a "PG-13" rated board, and we don't want to see sexual content or similarly suggestive content. Vulgarity is a more muddled issue, though again we prefer things to lean more towards "PG-13" than "R". If we feel things have gone too far, we will step in.
Rule #10
We like small signatures, not big signatures. The bigger the signature, the more likely it is an annoying or distracting signature.
Rule #11
Do not advertise anything without talking about it with the administrators first. This includes advertising with your signature, with your avatar, through private messaging, and/or by making a thread or post.
Whether your are a long standing forum member or whether you have just registered today, it's a good idea to read and review the rules below so that you have a very good idea of what to expect when you come to Pacers Digest.
A quick note to new members: Your posts will not immediately show up when you make them. An administrator has to approve at least your first post before the forum software will later upgrade your account to the status of a fully-registered member. This usually happens within a couple of hours or so after your post(s) is/are approved, so you may need to be a little patient at first.
Why do we do this? So that it's more difficult for spammers (be they human or robot) to post, and so users who are banned cannot immediately re-register and start dousing people with verbal flames.
Below are the rules of Pacers Digest. After you have read them, you will have a very good sense of where we are coming from, what we expect, what we don't want to see, and how we react to things.
Rule #1
Pacers Digest is intended to be a place to discuss basketball without having to deal with the kinds of behaviors or attitudes that distract people from sticking with the discussion of the topics at hand. These unwanted distractions can come in many forms, and admittedly it can sometimes be tricky to pin down each and every kind that can rear its ugly head, but we feel that the following examples and explanations cover at least a good portion of that ground and should at least give people a pretty good idea of the kinds of things we actively discourage:
"Anyone who __________ is a liar / a fool / an idiot / a blind homer / has their head buried in the sand / a blind hater / doesn't know basketball / doesn't watch the games"
"People with intelligence will agree with me when I say that __________"
"Only stupid people think / believe / do ___________"
"I can't wait to hear something from PosterX when he/she sees that **insert a given incident or current event that will have probably upset or disappointed PosterX here**"
"He/she is just delusional"
"This thread is stupid / worthless / embarrassing"
"I'm going to take a moment to point and
/ laugh at PosterX / GroupOfPeopleY who thought / believed *insert though/belief here*""Remember when PosterX said OldCommentY that no longer looks good?
"In general, if a comment goes from purely on topic to something 'ad hominem' (personal jabs, personal shots, attacks, flames, however you want to call it, towards a person, or a group of people, or a given city/state/country of people), those are most likely going to be found intolerable.
We also dissuade passive aggressive behavior. This can be various things, but common examples include statements that are basically meant to imply someone is either stupid or otherwise incapable of holding a rational conversation. This can include (but is not limited to) laughing at someone's conclusions rather than offering an honest rebuttal, asking people what game they were watching, or another common problem is Poster X will say "that player isn't that bad" and then Poster Y will say something akin to "LOL you think that player is good". We're not going to tolerate those kinds of comments out of respect for the community at large and for the sake of trying to just have an honest conversation.
Now, does the above cover absolutely every single kind of distraction that is unwanted? Probably not, but you should by now have a good idea of the general types of things we will be discouraging. The above examples are meant to give you a good feel for / idea of what we're looking for. If something new or different than the above happens to come along and results in the same problem (that being, any other attitude or behavior that ultimately distracts from actually just discussing the topic at hand, or that is otherwise disrespectful to other posters), we can and we will take action to curb this as well, so please don't take this to mean that if you managed to technically avoid saying something exactly like one of the above examples that you are then somehow off the hook.
That all having been said, our goal is to do so in a generally kind and respectful way, and that doesn't mean the moment we see something we don't like that somebody is going to be suspended or banned, either. It just means that at the very least we will probably say something about it, quite possibly snipping out the distracting parts of the post in question while leaving alone the parts that are actually just discussing the topics, and in the event of a repeating or excessive problem, then we will start issuing infractions to try to further discourage further repeat problems, and if it just never seems to improve, then finally suspensions or bans will come into play. We would prefer it never went that far, and most of the time for most of our posters, it won't ever have to.
A slip up every once and a while is pretty normal, but, again, when it becomes repetitive or excessive, something will be done. Something occasional is probably going to be let go (within reason), but when it starts to become habitual or otherwise a pattern, odds are very good that we will step in.
There's always a small minority that like to push people's buttons and/or test their own boundaries with regards to the administrators, and in the case of someone acting like that, please be aware that this is not a court of law, but a private website run by people who are simply trying to do the right thing as they see it. If we feel that you are a special case that needs to be dealt with in an exceptional way because your behavior isn't explicitly mirroring one of our above examples of what we generally discourage, we can and we will take atypical action to prevent this from continuing if you are not cooperative with us.
Also please be aware that you will not be given a pass simply by claiming that you were 'only joking,' because quite honestly, when someone really is just joking, for one thing most people tend to pick up on the joke, including the person or group that is the target of the joke, and for another thing, in the event where an honest joke gets taken seriously and it upsets or angers someone, the person who is truly 'only joking' will quite commonly go out of his / her way to apologize and will try to mend fences. People who are dishonest about their statements being 'jokes' do not do so, and in turn that becomes a clear sign of what is really going on. It's nothing new.
In any case, quite frankly, the overall quality and health of the entire forum's community is more important than any one troublesome user will ever be, regardless of exactly how a problem is exhibiting itself, and if it comes down to us having to make a choice between you versus the greater health and happiness of the entire community, the community of this forum will win every time.
Lastly, there are also some posters, who are generally great contributors and do not otherwise cause any problems, who sometimes feel it's their place to provoke or to otherwise 'mess with' that small minority of people described in the last paragraph, and while we possibly might understand why you might feel you WANT to do something like that, the truth is we can't actually tolerate that kind of behavior from you any more than we can tolerate the behavior from them. So if we feel that you are trying to provoke those other posters into doing or saying something that will get themselves into trouble, then we will start to view you as a problem as well, because of the same reason as before: The overall health of the forum comes first, and trying to stir the pot with someone like that doesn't help, it just makes it worse. Some will simply disagree with this philosophy, but if so, then so be it because ultimately we have to do what we think is best so long as it's up to us.
If you see a problem that we haven't addressed, the best and most appropriate course for a forum member to take here is to look over to the left of the post in question. See underneath that poster's name, avatar, and other info, down where there's a little triangle with an exclamation point (!) in it? Click that. That allows you to report the post to the admins so we can definitely notice it and give it a look to see what we feel we should do about it. Beyond that, obviously it's human nature sometimes to want to speak up to the poster in question who has bothered you, but we would ask that you try to refrain from doing so because quite often what happens is two or more posters all start going back and forth about the original offending post, and suddenly the entire thread is off topic or otherwise derailed. So while the urge to police it yourself is understandable, it's best to just report it to us and let us handle it. Thank you!
All of the above is going to be subject to a case by case basis, but generally and broadly speaking, this should give everyone a pretty good idea of how things will typically / most often be handled.
Rule #2
If the actions of an administrator inspire you to make a comment, criticism, or express a concern about it, there is a wrong place and a couple of right places to do so.
The wrong place is to do so in the original thread in which the administrator took action. For example, if a post gets an infraction, or a post gets deleted, or a comment within a larger post gets clipped out, in a thread discussing Paul George, the wrong thing to do is to distract from the discussion of Paul George by adding your off topic thoughts on what the administrator did.
The right places to do so are:
A) Start a thread about the specific incident you want to talk about on the Feedback board. This way you are able to express yourself in an area that doesn't throw another thread off topic, and this way others can add their two cents as well if they wish, and additionally if there's something that needs to be said by the administrators, that is where they will respond to it.
B) Send a private message to the administrators, and they can respond to you that way.
If this is done the wrong way, those comments will be deleted, and if it's a repeating problem then it may also receive an infraction as well.
Rule #3
If a poster is bothering you, and an administrator has not or will not deal with that poster to the extent that you would prefer, you have a powerful tool at your disposal, one that has recently been upgraded and is now better than ever: The ability to ignore a user.
When you ignore a user, you will unfortunately still see some hints of their existence (nothing we can do about that), however, it does the following key things:
A) Any post they make will be completely invisible as you scroll through a thread.
B) The new addition to this feature: If someone QUOTES a user you are ignoring, you do not have to read who it was, or what that poster said, unless you go out of your way to click on a link to find out who it is and what they said.
To utilize this feature, from any page on Pacers Digest, scroll to the top of the page, look to the top right where it says 'Settings' and click that. From the settings page, look to the left side of the page where it says 'My Settings', and look down from there until you see 'Edit Ignore List' and click that. From here, it will say 'Add a Member to Your List...' Beneath that, click in the text box to the right of 'User Name', type in or copy & paste the username of the poster you are ignoring, and once their name is in the box, look over to the far right and click the 'Okay' button. All done!
Rule #4
Regarding infractions, currently they carry a value of one point each, and that point will expire in 31 days. If at any point a poster is carrying three points at the same time, that poster will be suspended until the oldest of the three points expires.
Rule #5
When you share or paste content or articles from another website, you must include the URL/link back to where you found it, who wrote it, and what website it's from. Said content will be removed if this doesn't happen.
An example:
If I copy and paste an article from the Indianapolis Star website, I would post something like this:
http://www.linktothearticlegoeshere.com/article
Title of the Article
Author's Name
Indianapolis Star
Rule #6
We cannot tolerate illegal videos on Pacers Digest. This means do not share any links to them, do not mention any websites that host them or link to them, do not describe how to find them in any way, and do not ask about them. Posts doing anything of the sort will be removed, the offenders will be contacted privately, and if the problem becomes habitual, you will be suspended, and if it still persists, you will probably be banned.
The legal means of watching or listening to NBA games are NBA League Pass Broadband (for US, or for International; both cost money) and NBA Audio League Pass (which is free). Look for them on NBA.com.
Rule #7
Provocative statements in a signature, or as an avatar, or as the 'tagline' beneath a poster's username (where it says 'Member' or 'Administrator' by default, if it is not altered) are an unwanted distraction that will more than likely be removed on sight. There can be shades of gray to this, but in general this could be something political or religious that is likely going to provoke or upset people, or otherwise something that is mean-spirited at the expense of a poster, a group of people, or a population.
It may or may not go without saying, but this goes for threads and posts as well, particularly when it's not made on the off-topic board (Market Square).
We do make exceptions if we feel the content is both innocuous and unlikely to cause social problems on the forum (such as wishing someone a Merry Christmas or a Happy Easter), and we also also make exceptions if such topics come up with regards to a sports figure (such as the Lance Stephenson situation bringing up discussions of domestic abuse and the law, or when Jason Collins came out as gay and how that lead to some discussion about gay rights).
However, once the discussion seems to be more/mostly about the political issues instead of the sports figure or his specific situation, the thread is usually closed.
Rule #8
We prefer self-restraint and/or modesty when making jokes or off topic comments in a sports discussion thread. They can be fun, but sometimes they derail or distract from a topic, and we don't want to see that happen. If we feel it is a problem, we will either delete or move those posts from the thread.
Rule #9
Generally speaking, we try to be a "PG-13" rated board, and we don't want to see sexual content or similarly suggestive content. Vulgarity is a more muddled issue, though again we prefer things to lean more towards "PG-13" than "R". If we feel things have gone too far, we will step in.
Rule #10
We like small signatures, not big signatures. The bigger the signature, the more likely it is an annoying or distracting signature.
Rule #11
Do not advertise anything without talking about it with the administrators first. This includes advertising with your signature, with your avatar, through private messaging, and/or by making a thread or post.
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Re: Colts vs Pats AFC Title Game
Nope. One rule, one equation.Originally posted by Since86 View Post
The gory details, if you will, and I ignore completely the admittedly controversial "wet leather expansion" factor.
The ideal gas law: PV = nRT
The ideal gas law modeled for two conditions 1 and 2: P1V1 = nRT1 and P2V2 = nRT2
Solving for Volume V in each case: V1 = nRT1/P1 and V2 = nRT2/P2
Now we will assume that V1 = V2; that is, the volume of the football will not change during the game; therefore; nRT1/P1 = nRT2/P2;
Dividing each side by the constants n and R; leaves: T1/P1 = T2/P2
Now let‘s determine the real values based upon:
T1 = initial temperature of inflation (indoors) = room temperature, likely equals 72 degrees F = 22.22 degrees C = 295.37 Kelvin;
T2 = final temperature = game time temperature (published value at kickoff) = 51 degrees F = 10.56 degrees C = 283.71 Kelvin
P1 = absolute pressure at the onset, equals relative pressure + atmospheric pressure, and since reported atmospheric pressure at the time point nearest kickoff time, as reported by Weather Underground, equals 29.75 in = 14.61 psi at 6:53 PM;
P1 equals 12.50 psi + 14.61 psi, = 27.11 psi
All that we need to do is solve for P2:
Since T1/P1 = T2/P2; the reciprocal is true and P1/T1 = P2/T2
Multiplying both sides by T2 solves for P2:
P2 = P1T2/T1
Plugging in the actual values for the known quantities P1, T1 and T2;
P2 = (27.11) x (283.71) / (295.37) = 26.04 = absolute pressure of the football at the end condition (halftime).
Relative pressure = absolute pressure – atmospheric pressure = 26.04 – 14.70 = 11.34 psi
Therefore, the drop in relative pressure P2 – P1 thus equals 12.50 – 11.34 = 1.16 psi
Plain English: By the ideal gas law, a football inflated to 12.50 psi at 72 degrees F and cooled to 51 degrees F will have a final pressure of 11.34 psi, thus a loss of 1.16 psi.
Carnegie Mellon Finding #1: Footballs inflated to 12.50 psi at 75 degrees F and cooled to 50 degrees F had a final pressure of 11.4 psi, a loss of 1.1 psi (summarized in the pdf document at http://www.headsmartlabs.com/
Conclusion #1: Experiment seems to match ideal gas law prediction rather closely. Note that they used a slightly larger temperature drop, 25 degrees, not 21 degrees. We do not know room temperature in the ref’s room, though, anyway.
Carnegie Mellon Finding #2: Footballs inflated to 12.50 psi at 75 degrees F and cooled to 50 degrees F and then soaked with water had a final pressure of 10.7 psi, a loss of 1.8 psi.
Conclusion #2: A second factor, the expansion of a football as it gets wet, also leads to a drop in psi. This factor contributes another 0.7 psi in pressure drop. This in essence shows that the “constant volume assumption” of the ideal gas law is not fully valid since a football is not infinitely rigid.
One important caveat on the Carnegie Mellon Experiment #2: In this experiment they immersed the football in water for a time. Is that analogous to heavy rain, or is it overkill? That criticism concerns me a bit. The real world effect of a heavy rain is probably between their dry ball result (1.1 psi) and the soaked ball result (1.8 psi). But to err on the side of caution, let’s ignore the water effect for now and go with the dry ball result: 1.1 psi drop at Carnegie Mellon, in agreement with the 1.16 psi calculation.
Plain English ultimate conclusion for the Patriots footballs: It would be reasonable to expect, based on both experimental results and ideal gas law calculations, for a pressure drop of about 1.2 psi to have occurred within the Patriots footballs in the first half of the AFCCG, based on the known game time conditions and the observation that the footballs were inflated to 12.5 (relative) psi at room temperature.
Aha though- what about the Colts footballs? We don’t know their initial pressure, unfortunately, but if we assume that they were at the maximum legal pressure of 13.5 psi relative pressure (since they apparently knew that ball pressure loss would be monitored), we can calculate the expected pressure drop.
T1 = 295.37 Kelvin, as before
T2 = 283.71 Kelvin, as before
P1 = absolute pressure at the onset = 13.50 psi + 14.61 psi, = 28.11 psi
P2 = (28.11) x (283.71) / (295.37) = 27.00
Relative pressure = 27.00 – 14.70 = 12.30 psi
Thus the Colts footballs should have been a final pressure of 12.3 psi. The legal lower limit is 12.5 psi. The Colts footballs should have been illegal by 0.2 psi.
Question: Would a referee call a reading of 12.3 rather than 12.5 to be clearly out of specifications and illegal? Maybe yes, maybe no. It certainly depends on both the accuracy and precision of the pressure gauge. A digital readout often shows significant drift/fluctuation in the last digit. If in real time the ref saw values pop up such as these: 12.3, 12.4, 12.5, 12.4, 12.3, 12.4; he would likely say: It looks to be about 12.5; pass! Similarly at the beginning, if he saw in real time 13.5, 13.6, 13.5, 13.6, 13.5, 13.6; he would likely say: It looks to be about 13.5, pass!
Final conclusion: It is not unreasonable at all to assume that the Patriots balls would fail the inspection and the Colts balls would (barely) pass or (barely) fail, based upon logical assumptions of inflation levels and inflation temperatures in concert with the issues of temperature-related gas expansion, and the human-element: deciding when (and if) you are sure about that last digit on the pressure gauge.
Not taken into account at all in this analysis is the ball preparation (rubbing) procedure. Thus in essence I am assuming that the ball preparation procedure does not affect psi in the least, which is Bill Nye’s assertion. To me, a 1 psi drop based on friction, even severe friction, seems a bit high. I disagree, though, that the effect must be zero. It is probably non-zero, but unknown and unknowable unless we knew the exact ball prep procedure. Still, it is not needed to explain a pressure drop of the magnitude seen. A key piece of the puzzle is the actual ref-recorded data for the Colts footballs, clearly.
These calculations have been confirmed, now, by two physics professors and one mechanical engineer.The poster "pacertom" since this forum began (and before!). I changed my name here to "Slick Pinkham" in honor of the imaginary player That Bobby "Slick" Leonard picked late in the 1971 ABA draft (true story!).Comment
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Re: Colts vs Pats AFC Title Game
I could buy the argument that the drop in PSI was due to temperature IF it had also happened to the Colts' balls. It didn't. Then there is the fact that the Colts complained to the NFL about New England underinflating balls back in November when the game was played indoors at room temperature.
It is possible that New England deliberately inflated the balls to the minimum requirement of 12.5 PSI knowing that when exposed to lower temperatures the pressure would drop thus giving their offense an advantage. Shady but not technically illegal, just like the four lineman and eligible/ineligible shenanigans in the Baltimore game.Comment
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Re: Colts vs Pats AFC Title Game
A Toronto physicist says that it would take a 30 degree change in temperature to cause that kind of pressure drop:
http://m.torontosun.com/2015/01/24/d...-drop-theoriesComment
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Re: Colts vs Pats AFC Title Game
So, best case scenario (Colts' balls at 13.5), the Colts' balls would fall below the legal limit? Seems like that says a lot right there.Originally posted by Slick Pinkham View PostComment
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Re: Colts vs Pats AFC Title Game
It may not mean anything, but that sounds shady as hell.Originally posted by Sollozzo View PostComment
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Re: Colts vs Pats AFC Title Game
Is his name Dougy Spoons?Originally posted by LuckSwagger View Post
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Re: Colts vs Pats AFC Title Game
So basically, the Colts balls were legal, therefore breaking the laws of physics. Sounds plausible.Comment
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Originally posted by Natston;n3510291Comment
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Re: Colts vs Pats AFC Title Game
Yes because in order to be legal when tested at halftime they had to be originally overinflated-above 13.5.Originally posted by Natston View PostComment
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Re: Colts vs Pats AFC Title Game
I think they were pumping the balls full of gatorade, keeping those bladders full...Originally posted by Natston;n3510291Comment
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Re: Colts vs Pats AFC Title Game
Kraft expects apology if NFL cant find culprit
http://espn.go.com/boston/nfl/story/...tegate-culpritComment
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Re: Colts vs Pats AFC Title Game
Yeah I don't think so.....
I seriously thought that was going to be an Onion article when I saw that headline. They are investigating footballs that were not legal according to NFL rules. When rules are broken, intentional or not, apologies go the other direction Bob.Comment
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Re: Colts vs Pats AFC Title Game
The arrogance of that organization, from the QB to the coach to the owner, knows no bounds.Comment
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Re: Colts vs Pats AFC Title Game
PFT is reporting that the locker room attendant that is being questions is shown on video disappearing into a stadium bathroom for 90 seconds with both the Patriots and Colts bags of balls.
http://profootballtalk.nbcsports.com...into-bathroom/Comment
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