highz
Retreaded
All I know is that Mark's rig warps space more than mine does 
.
.
Quick question, what is this?
- Thread starter Brewskier
- Start date
Newton observed and predicted the effects of gravity in a Newtoniun Universe.
Einstein observed and predicted the effects of gravity in an Einsteinian Universe.
One of the physics professors I had in college -- a young-ish guy (but full professor) who was still excited about teaching physics -- said that if you look back over the terrain of the history of physics you see two peaks towering over the rest: Newton and Einstein.
(Seems like there might be at least one quantum-mechanical physicist whose peak could be included...but this professor worked in quantum physics so his assessment wasn't biased against it.)
Newton -- with his work in gravity and motion and optics and mathematics was undoubtedly a super-genius...but from what I've read he was kind of a jerk of a human being.
But to keep this post on-topic so I don't have to move it -- Air Drag: As highz suggested, quantitative calculations around turbulence are extremely complicated and difficult to do accurately. Where I (used to) work, a few guys use "computational fluid dynamics" (CFD) software running on a 60-processor computing system (no super-computer, but probably the most-powerful computer system in Bend, Oregon
) to predict the motion and interactions of liquids and gases and suspended solids, etc -- pretty cool, and frequently useful.
But without experimental verification, the honest researchers (i.e., not the managers trying to sell our expertise) could never be sure that the predictions of CFD were accurate when the turbulence was particularly gnarly. The honest researchers (in private) would only claim that, if nothing else, the output of CFD made mighty purdy PowerPoint presentations -- no doubt at all about that!
3-D swirling colors in computer-generated video looks impressive!
Another example of accuracy: Forecasting the weather is very influenced by the turbulence of the atmosphere...and how accurate is that really? Locally -- in central Oregon - it kinda sucks.
And the big-time meteorologists making those forecasts are using super-computers! It's not their fault that long-range forecasts are usually wrong -- it's just too difficult. But it is their fault that they claim that those forecasts are worth looking at.
Still, they're a lot more accurate than the predictions of economists and other financial experts...but don't get me started on people getting paid for being wrong!
All I know is that Mark's rig warps space more than mine does.
Yep, and so, time passes slower inside my truck for the same reason...the more time I spend in it the slower I age!
Of course...that also means that my retirement savings have to last longer...
Einstein observed and predicted the effects of gravity in an Einsteinian Universe.
One of the physics professors I had in college -- a young-ish guy (but full professor) who was still excited about teaching physics -- said that if you look back over the terrain of the history of physics you see two peaks towering over the rest: Newton and Einstein.
(Seems like there might be at least one quantum-mechanical physicist whose peak could be included...but this professor worked in quantum physics so his assessment wasn't biased against it.)
Newton -- with his work in gravity and motion and optics and mathematics was undoubtedly a super-genius...but from what I've read he was kind of a jerk of a human being.
But to keep this post on-topic so I don't have to move it -- Air Drag: As highz suggested, quantitative calculations around turbulence are extremely complicated and difficult to do accurately. Where I (used to) work, a few guys use "computational fluid dynamics" (CFD) software running on a 60-processor computing system (no super-computer, but probably the most-powerful computer system in Bend, Oregon
But without experimental verification, the honest researchers (i.e., not the managers trying to sell our expertise) could never be sure that the predictions of CFD were accurate when the turbulence was particularly gnarly. The honest researchers (in private) would only claim that, if nothing else, the output of CFD made mighty purdy PowerPoint presentations -- no doubt at all about that!
Another example of accuracy: Forecasting the weather is very influenced by the turbulence of the atmosphere...and how accurate is that really? Locally -- in central Oregon - it kinda sucks.
And the big-time meteorologists making those forecasts are using super-computers! It's not their fault that long-range forecasts are usually wrong -- it's just too difficult. But it is their fault that they claim that those forecasts are worth looking at.
Still, they're a lot more accurate than the predictions of economists and other financial experts...but don't get me started on people getting paid for being wrong!
All I know is that Mark's rig warps space more than mine does
.Yep, and so, time passes slower inside my truck for the same reason...the more time I spend in it the slower I age!
Of course...that also means that my retirement savings have to last longer...
Yep, and so, time passes slower inside my truck for the same reason...the more time I spend in it the slower I age!
Possibly because you are protected from all that turbulence outside?
Possibly because you are protected from all that turbulence outside?
chnlisle
Post Master
I have a pencil.
Alley-Kat
Elder Statesman
That's a good start, Jay!
Possibly because you are protected from all that turbulence outside?
Yeah, for one thing, it puts less strain on my hair so I can keep it longer.
Yeah, for one thing, it puts less strain on my hair so I can keep it longer.
craig333
Riley's Human
Please tell me there won't be a test on the subject matter. At least make it multiple choice.
highz
Retreaded
Please tell me there won't be a test on the subject matter. At least make it multiple choice.
OK. Multiple choice it is.
Q. 1) If I am traveling in my rig on a highway at 70 mph, I should:
a) get a pencil out. You have one, right?
b)get a computer out to run turbulence simulations
c) Compare time dilation calculations between special and general relativity
d) Relax and enjoy the journey
OK. Multiple choice it is.
Q. 1) If I am traveling in my rig on a highway at 70 mph, I should:
a) get a pencil out. You have one, right?
b)get a computer out to run turbulence simulations
c) Compare time dilation calculations between special and general relativity
d) Relax and enjoy the journey
OK. Multiple choice it is.
Q. 1) If I am traveling in my rig on a highway at 70 mph, I should:
a) get a pencil out. You have one, right?
b)get a computer out to run turbulence simulations
c) Compare time dilation calculations between special and general relativity
d) Relax and enjoy the journey
Oh! Oh! -- I know!
Q. 1) If I am traveling in my rig on a highway at 70 mph, I should:
a) get a pencil out. You have one, right?
b)get a computer out to run turbulence simulations
c) Compare time dilation calculations between special and general relativity
d) Relax and enjoy the journey
Oh! Oh! -- I know!
chnlisle
Post Master
damn I forgot the sharpener... wait wait I have my $275 knife I saw in the OJ.
craig333
Riley's Human
I have a carpenters pencil. Does that count?
OK. Multiple choice it is.
Q. 1) If I am traveling in my rig on a highway at 70 mph, I should:
a) get a pencil out. You have one, right?
b)get a computer out to run turbulence simulations
c) Compare time dilation calculations between special and general relativity
d) Relax and enjoy the journey
Good one highz! I think we got the right answer.
Q. 1) If I am traveling in my rig on a highway at 70 mph, I should:
a) get a pencil out. You have one, right?
b)get a computer out to run turbulence simulations
c) Compare time dilation calculations between special and general relativity
d) Relax and enjoy the journey
Good one highz! I think we got the right answer.
highz
Retreaded
I have a carpenters pencil. Does that count?
Most definitely - in fact, it gets extra credit!
Most definitely - in fact, it gets extra credit!
EdoHart
Grasshopper
OK. Multiple choice it is.
Q. 1) If I am traveling in my rig on a highway at 70 mph, I should:
a) get a pencil out. You have one, right?
b)get a computer out to run turbulence simulations
c) Compare time dilation calculations between special and general relativity
d) Relax and enjoy the journey
If you're traveling with a companion whom can discuss c, then c and d without the radio playing. It your travelling companion also has a pencil...who knows?
Q. 1) If I am traveling in my rig on a highway at 70 mph, I should:
a) get a pencil out. You have one, right?
b)get a computer out to run turbulence simulations
c) Compare time dilation calculations between special and general relativity
d) Relax and enjoy the journey
If you're traveling with a companion whom can discuss c, then c and d without the radio playing. It your travelling companion also has a pencil...who knows?
Mark W. Ingalls
Contributors
If you're traveling with a companion whom can discuss c, then c and d without the radio playing. It your travelling companion also has a pencil...who knows?
I'm not sure how I arrived at this conclusion, but I think this thread is just one or two steps from 'moderation'...
I'm not sure how I arrived at this conclusion, but I think this thread is just one or two steps from 'moderation'...
I'm not sure how I arrived at this conclusion, but I think this thread is just one or two steps from 'moderation'...
Look out, the cops here...
Look out, the cops here...
Mark W. Ingalls
Contributors
Look out, the cops here...
Dude, I can't believe he pulled you over for drivin' too slow...
Dude, I can't believe he pulled you over for drivin' too slow...
EdoHart
Grasshopper
I'm not sure how I arrived at this conclusion, but I think this thread is just one or two steps from 'moderation'...
If I'm traveling with a someone whom can compare time dilation calculations between special and general relativity, and I have the radio turned on, I won't be able to understand what that person is saying. With the radio off, I have a slight chance of understanding him/her. If said person has a pencil and can draw a picture, well then, who knows how much I may be able to understand?
If I'm traveling with a someone whom can compare time dilation calculations between special and general relativity, and I have the radio turned on, I won't be able to understand what that person is saying. With the radio off, I have a slight chance of understanding him/her. If said person has a pencil and can draw a picture, well then, who knows how much I may be able to understand?
Mark W. Ingalls
Contributors
If I'm traveling with a someone whom can compare time dilation calculations between special and general relativity, and I have the radio turned on, I won't be able to understand what that person is saying. With the radio off, I have a slight chance of understanding him/her. If said person has a pencil and can draw a picture, well then, who knows how much I may be able to understand?
Oh.
I was headed in a whole 'nother direction!
Oh.
I was headed in a whole 'nother direction!
EdoHart
Grasshopper
Oh.
I was headed in a whole 'nother direction!
I guess it is a matter of how one can relax and enjoy the journey. I'm old enough that I must exercise my mind every day to stave off alzheimers disease.Thinking and remembering is very relaxing, because doing so makes me think that my mind still functions, and that is a comforting thought. Recently, it took me two days to remember ...where was I?
Now, where did I put my pen? Ooh, it's in my right hand. I bet my reading glasses are on top of my head - dooh, not there. Hmm...
I was headed in a whole 'nother direction!
I guess it is a matter of how one can relax and enjoy the journey. I'm old enough that I must exercise my mind every day to stave off alzheimers disease.Thinking and remembering is very relaxing, because doing so makes me think that my mind still functions, and that is a comforting thought. Recently, it took me two days to remember ...where was I?
Now, where did I put my pen? Ooh, it's in my right hand. I bet my reading glasses are on top of my head - dooh, not there. Hmm...
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