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re: Official Texas Tech thread
Posted on 6/21/14 at 2:19 pm to Jefferson Dawg
Posted on 6/21/14 at 2:19 pm to Jefferson Dawg
DA= density altitude in feet
P= atmospheric (static) pressure
P_{SL}= standard sea level atmospheric pressure (1013.25 hPa ISA or 29.92126 inHg US))
T= true (static) air temperature in kelvins (K) [add 273.15 to the Celsius (°C)] figure
T_{SL}= ISA standard sea level air temperature in kelvins (K) (288.15 K)
\gamma= lapse rate (0.0019812 K/ft)
\Gamma= lapse rate (0.0065 K/m)
R= gas constant (8.31432 J/mol·K)
g= gravity (9.80665 m/s²)
M= molar mass of dry air (0.0289644 kg/mol)
Warm air can hold a lot more humidity. A temperature of 100 deg. F. can hold almost two inches of mercury of water vapor pressure. That would be 100% relative humidity. Cooler air can only hold a fraction of that amount. For example, a temperature of 50 deg. F. can only hold about 0.36 inches of mercury of water vapor pressure. That would be 100% relative humidity at that temperature. Local weather information usually includes the relative humidity. It is in percentage of maximum for that temperature. An example for air density without consideration of water vapor pressure. The calculation would be:
Air density % = 1,736.86 x uncorrected barometer / absolute temperature
Air density % = 1,736.86 x 29.35 / 549.67 = 92.7%
HUMIDITY: The determination for the value of water vapor pressure from the relative humidity is a bit complex to determine. It is dependent on the temperature and the amount of water vapor. Now assume a relative humidity of 50% reported from the Tulsa Weather Center for this 90 deg. F. day. A summary of approximate values of water vapor pressure is shown for 50% relative humidity.
temp. vapor pressure
deg. F inches mercury
100 0.96
90 0.71
80 0.52
For 50% humidity on a 90 deg. F day, the water vapor pressure is about 0.71 inches of mercury. The calculation for air density % with humidity is: (6) Air density % = 1,736.86 x (uncorrected barometer – water vapor pressure) absolute temperature Air density % = 1,736.86 x (29.35 – 0.71) = 90.5% 549.67
Humidity of 50% at 90 deg. F. reduces the air density from 92.7% down to 90.5%. That is over two percent less air density from the humidity.
3
Posted on 6/21/14 at 2:34 pm to DaleDenton
This post was edited on 6/21/14 at 2:36 pm
Posted on 6/21/14 at 3:12 pm to DaleDenton
Dale Denton the Science Hog.
Posted on 6/21/14 at 3:42 pm to DaleDenton
INteresting. But, these formulas that you cut-n-pasted from the Racecar Book article actually prove my point, not yours.
There's a reduction in air density with an increase in humidity, but by these numbers it's clearly far less impactful than an increase in heat and actual altitude.
Regardless.....................Check this out:
It's now approximately 3:30pm Central. Most likely, the hottest part of the afternoon......and here are the conditions in both locations....
Fayetteville, Arkansas: 85 degress F / 55% humidity
Lubbock, Texas: 83 degrees F / 53% humidity
They're nearly identical Dale. So, I'm sorry, but this throws a wrench in your theory that it being muggy in arkansas will somehow acclimate your players and make up for the altitude differential.
Lubbock, Texas is a possible death trap, man. Spleens and gall bladders could rupture.
There's a reduction in air density with an increase in humidity, but by these numbers it's clearly far less impactful than an increase in heat and actual altitude.
Regardless.....................Check this out:
It's now approximately 3:30pm Central. Most likely, the hottest part of the afternoon......and here are the conditions in both locations....
Fayetteville, Arkansas: 85 degress F / 55% humidity
Lubbock, Texas: 83 degrees F / 53% humidity
They're nearly identical Dale. So, I'm sorry, but this throws a wrench in your theory that it being muggy in arkansas will somehow acclimate your players and make up for the altitude differential.
Lubbock, Texas is a possible death trap, man. Spleens and gall bladders could rupture.
Posted on 6/21/14 at 3:58 pm to Jefferson Dawg
quote:
Lubbock, Texas is a possible death trap, man. Spleens and gall bladders could rupture.
If you're going to keep claiming this, how about providing some documented cases of injuries that have occurred in Lubbock due to altitude.
This post was edited on 6/21/14 at 3:59 pm
Posted on 6/21/14 at 4:01 pm to Jefferson Dawg
The thinner air will us more than hurt us. We'll run a click faster, slicing through thin air like katanas through watermelons and Brandon Allen's passes will be laser beams on target.
Hogs 45
Tech 24
Hogs 45
Tech 24
Posted on 6/21/14 at 6:54 pm to Jefferson Dawg
Lubbock, TX - 3,256 ft
Fayettville, AR - 1,400 ft.
Difference of 1856 ft.
Baton Rouge, LA 63 ft.
Difference of 1,337
OMG at all those injuries when LSU plays so high up in the air up here.
Fayettville, AR - 1,400 ft.
Difference of 1856 ft.
Baton Rouge, LA 63 ft.
Difference of 1,337
OMG at all those injuries when LSU plays so high up in the air up here.
This post was edited on 6/21/14 at 6:59 pm
Posted on 6/21/14 at 7:12 pm to DaleDenton
No, that would be Auburn at 702 feet. Something about doubling the elevation.
Posted on 6/22/14 at 8:40 am to Stonehog
Now to look at some recruiting comparisons between the two teams.
Class ranking from 24/7, 2011-2014:
2011
Arkansas - 21 - Highest rated player was Brey Cook, Senior OT
Texas Tech - 18 - Highest rated player was DT Delvon Simmons, transferred to USC.
2012
Arkansas - 28 - HRP was Jonathan Williams, Junior RB
Texas Tech - 27 - HRP was OT Michael Starts, transferred to junior college.
2013
Arkansas - 23 - HRP was Alex Collins, Sophomore RB
Texas Tech 46 - HRP was JUCO DE Andre Ross, now a Senior
2014
Arkansas - 30 - HRP is 4* Bijhon Jackson, DT from El Dorado
Texas Tech - 41 - HRP is 3* safety Payton Hendrix.
Arkansas had a high of 21 and a low of 30, while TT had a high of 18 but a low of 46. Our recruiting has been much more steady, while TT had a good year in 2011 and then started to tank.
Also note that the top two players for Texas Tech in 2011 and 2012 are no longer on the team.
Class ranking from 24/7, 2011-2014:
2011
Arkansas - 21 - Highest rated player was Brey Cook, Senior OT
Texas Tech - 18 - Highest rated player was DT Delvon Simmons, transferred to USC.
2012
Arkansas - 28 - HRP was Jonathan Williams, Junior RB
Texas Tech - 27 - HRP was OT Michael Starts, transferred to junior college.
2013
Arkansas - 23 - HRP was Alex Collins, Sophomore RB
Texas Tech 46 - HRP was JUCO DE Andre Ross, now a Senior
2014
Arkansas - 30 - HRP is 4* Bijhon Jackson, DT from El Dorado
Texas Tech - 41 - HRP is 3* safety Payton Hendrix.
Arkansas had a high of 21 and a low of 30, while TT had a high of 18 but a low of 46. Our recruiting has been much more steady, while TT had a good year in 2011 and then started to tank.
Also note that the top two players for Texas Tech in 2011 and 2012 are no longer on the team.
Posted on 6/22/14 at 9:18 am to Stonehog
The only weather factor that poses a concern is the wind because of the dust, and that isn't a concern at all. Unless a freak dust storm rolls in, but those wait until its time for my flight out always. Of course, outside of the heat-which is tolerable. If I can walk property in a suit in june-30 weeks pregnant all friggn day out there, then they will be just fine. 
hope everyone is well.
hope everyone is well.
Posted on 6/22/14 at 8:31 pm to DaleDenton
quote:
Lubbock, TX - 3,256 ft
Fayettville, AR - 1,400 ft.
Difference of 1856 ft.
Baton Rouge, LA 63 ft.
Difference of 1,337
OMG at all those injuries when LSU plays so high up in the air up here.
This is bizarre. You are obviously missing some basic fundamentals here..........
By your logic, some dude that mops the floors down in one of the government's fortified underground bunkers 5,000 feet below the surface of the earth........would experience "altitude sickness" when he takes the elevator back up to mean sea-level every night to go home to his wife and kids.......
I'm sorry, but that's asinine.
Dale, These numbers we're discussing are just values. Values that are used to measure the distance from sea level upwards. Where similiar numbers are used to measure the value of pressure. As it decreases the further away you get from sea level.
You can't just compare the numbers to each other. You have to take them in context. And if you do that...............you will realize that spleens and gall bladders are..........nevermind. You people don't care. whatever...
Posted on 6/22/14 at 8:36 pm to Stonehog
quote:
Texas Tech - 41 - HRP is 3* safety Payton Hendrix.
A 3* was seriously their highest rated player?
Posted on 6/22/14 at 8:42 pm to CtotheVrzrbck
quote:
The thinner air will us more than hurt us. We'll run a click faster, slicing through thin air like katanas through watermelons and Brandon Allen's passes will be laser beams on target.
This guy gets it.........
Posted on 6/22/14 at 9:09 pm to Jefferson Dawg
Let's be real, there's only going to be a few percentage points of difference in oxygen levels. It isn't going to make much of a difference.
Posted on 6/22/14 at 9:21 pm to Hog on the Hill
quote:
Let's be real, there's only going to be a few percentage points of difference in oxygen levels. It isn't going to make much of a difference.
That was my original point, minus the off tangent hyperbole introduced.
It isn't the difference in going from say, Athens, GA to say Bolder, CO, I do not recall all the busted gall bladders and spleens from that trip, I do recall a busted UGA arse.
Posted on 6/22/14 at 9:34 pm to DaleDenton
To be fair, he was being truthful about that guy that isn't allowed to go to Denver to play.
Posted on 6/22/14 at 9:35 pm to Stonehog
I clicked this thread expecting to read a good synopsis of our game with TT and it turned into some weird Bill Nye the Science Guy episode and I don't know understand what the frick anyone's talking about. Geesh, I need a drink.
Posted on 6/22/14 at 9:39 pm to TheCheshireHog
quote:
To be fair, he was being truthful about that guy that isn't allowed to go to Denver to play.
I'm aware, but Denver is the highest elevation the game could possibly be played at that I'm aware of.
Its a weak hyperbole and has nothing to do with the minimal atmospheric differences, oxygen content, and water grains between Fayetteville, AR and Lubbock, TX.
Posted on 6/22/14 at 9:58 pm to TheCheshireHog
quote:
A 3* was seriously their highest rated player?
Yep, they had a DT Rika Levi that was overvalued by 24/7, but the composite had him as a mid level three star. Payton Hendrix was their highest rated player and he was only an 88 3*.
Posted on 6/22/14 at 11:34 pm to OSqueal
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