If it exists, this kid watches "The Hills" marathon for sure.
If it exists, this kid watches "The Hills" marathon for sure.
sodontask wrote:
No they are not an item you idiot. Just because a female is coaching a male you shouldn't assume that they hooking up. Juli has coached Chris since his freshman year at Georgetown so it isn't like this is some strange move.
So what you are saying is that they are totally getting it on?
We all hope Lukezic falls on in self indulging face.
altitudeman wrote:
Actually it is the pressure. The lack of pressure allows oxygen molecules to be more spread out, therefore giving the perception of less oxygen in the air. So when a person breathes he gets less oxygen because it is so spread out.
So... in other words, it IS the lack of oxygen that you breathe in (because it has a lower partial pressure). And, back to the original point, you can indeed put on a mask, breathe higher concentrations of oxygen, and negate (to first order, for a distance runner) the effects of altitude.
Just a thought....... wrote:
We all hope Lukezic falls on in self indulging face.
Don't you mean HIS self indulging face (that would be great). Does anyone like this guy? I have yet to meet someone who has anything nice to say about this guy.
has anything nice to say about this guy.[/quote]
NO.
i think he's a nice guy.
vermonty wrote:
i think he's a nice guy.
Your name can't be Chris Lukezic
The best was when Steve Sheer smoked him in the 1500 in Indianapolis last June. After the race Chris was bitching and crying, " I did all the work".
A lot of confusion surrounds this.
Looking at the laws of physics: total pressure is the sum of the partial pressures which make it up. the total atmospheric pressure is less at higher elevations because there is less volume in the column of air above. The atmosphere is pretty much just 72% nitrogen and 28% oxygen, no matter what atmospheric pressure you're at.
SO, at sea level this is like 0.28 atmospheres of oxygen. for arguments sake lets say that you're at such a whopping elevation that the Ptot is 0.5 atm. the partial pressure of oxygen is now 0.16 atm, and you're PR goes to crap.
if you're on a treadmill at elevation with supplemental oxygen at a higher concentration (say 50% instread of 28%) you increase the partial pressure of oxygen going into you're lungs, to (0.5*0.5 =)0.25 atm and the N2 content to the same. You're almost at what you were at sea level (0.28 atm).
So, it is correct that the % of O2 is constant at all elevations but it is also possible to mimic the effects of sea level by increasing the partial pressure of O2. the confusion comes from a misunderstanding between partial pressures and concetrations, which are the exact same thing when referring to gases.
Why exactly is he self indulgent? And why exactly do you want him to fall on his face? Did he screw your girlfriend or something?
I ran with Lukezic at Gtown and thought/think he's a nice guy.
He's been good since early in HS, and has continually improved through his college and professional years. I doubt he cares that a few people think of him here.
Lukezic has been in CO for a few weeks now, he's just there getting some altitude work in. He still lives in the Georgetown/DC area.
Look at the math of it wrote:
A lot of confusion surrounds this.
Looking at the laws of physics: total pressure is the sum of the partial pressures which make it up. the total atmospheric pressure is less at higher elevations because there is less volume in the column of air above. The atmosphere is pretty much just 72% nitrogen and 28% oxygen, no matter what atmospheric pressure you're at.
SO, at sea level this is like 0.28 atmospheres of oxygen. for arguments sake lets say that you're at such a whopping elevation that the Ptot is 0.5 atm. the partial pressure of oxygen is now 0.16 atm, and you're PR goes to crap.
if you're on a treadmill at elevation with supplemental oxygen at a higher concentration (say 50% instread of 28%) you increase the partial pressure of oxygen going into you're lungs, to (0.5*0.5 =)0.25 atm and the N2 content to the same. You're almost at what you were at sea level (0.28 atm).
So, it is correct that the % of O2 is constant at all elevations but it is also possible to mimic the effects of sea level by increasing the partial pressure of O2. the confusion comes from a misunderstanding between partial pressures and concetrations, which are the exact same thing when referring to gases.
That's one way of saying it. Another is to say when the air is thin there isn't much oxygen to breathe. But when you breath compressed oxygen through a tube, you get plenty of oxygen.
I can't believe anyone is confused about this.
selfindulgence wrote:
Why exactly is he self indulgent? And why exactly do you want him to fall on his face? Did he screw your girlfriend or something?
Not at all. He is just a prick and everyone knows it. He cares about nothing but himself. Try asking around and I am sure everyone will agree.
Those 3:33 day for Chris are long gone!
Ask him and I bet you he won't deny that he is. He probably doesn't care what you think.
ibetheagrees wrote:
Ask him and I bet you he won't deny that he is. He probably doesn't care what you think.
That's to bad. Who does he run for?
Yeah. people confuse partial pressure and concentration. I had a college physiology exam where like 90% of the class screwed it up.