Cool YouTube videos

[moose]

Haha. I like the paint sprayer.

[Joeyy]

One of my old jobs in the service. Watch his breathing get deeper and his cheeks get flush. He starts getting happy. This is to show the pilots the affects of hypoxia(lack of oxygen) so they can know what there symptoms are and correct before they die. "Gang Load" is turning your regulator on, at 100 % and at at emergency pressure. After he corrects, you hear the oxygen start to flow at emergency pressure and the fart sound is the gas flowing passed his face against his cheeks. Notice he goes back to doing what he was doing before. He was most likely off of oxygen at 25,000 feet during this class. I actually would get very blue around my eyes and around the beds of my nails. I wonder how many brain cells I killed in the name of science?

YouTube- Controlled Hypoxia in Altitude Chamber

YouTube- Controlled Hypoxia in Altitude Chamber

[Joeyy]

Reverse from the last post is the hyperbaric (high pressure) chamber. My lips would tingle at about 100 feet and at 165 the feeling is great(nitrogen narcosis). We treated folks with the bends, CNS, carbon dioxide poisoning, gangrene etc...

YouTube- Human Guinea Pigs - Hyperbaric Chamber

YouTube- Human Guinea Pigs - Hyperbaric Chamber

[NevadaSTi]

YouTube- Dan Deacon & Liam Lynch - Drinking Out of Cups

YouTube- Dan Deacon & Liam Lynch - Drinking Out of Cups

OMG, funny dude!

[100_Percent_Juice]

I don't get that at all.

[NevadaSTi]

I was told that he is high on acid.

[bigrobwoot]

Oh, like someone recorded someones acid trip and then made a video to match what he was talking about? That makes it a lil funnier

[NevadaSTi]

exactly

[bigrobwoot]

Originally Posted by Joeyy

Reverse from the last post is the hyperbaric (high pressure) chamber. My lips would tingle at about 100 feet and at 165 the feeling is great(nitrogen narcosis). We treated folks with the bends, CNS, carbon dioxide poisoning, gangrene etc...

http://www.youtube.com/watch?v=cauYw2A91Z0

Is that 100 ft below sea level? If so, why doesn't that happen to people at death valley? Well, I've never been, so I'm only assuming that doesn't happen...

[Dean]

Death valley is 100 feet below sea level, but still in air! 100 feet of water is much heavier than 100 feet of air , so the pressure is much greater under 100 feet of water...

[bigrobwoot]

But if you're in a submarine, does that matter? I mean watching that video apparently it does, but for some reason I was under the impression that people went much much lower than that in a sub

[Dean]

Subs are kept at or near sea level pressure internally, that is why they need such thick and strong hulls to hold back the pressure differential. Airplanes are the opposite, they are kept pressurized to comfortable altitude equivalents so you don't black out on your way to Las Vegas.

Scuba divers are subject to the actual pressure of the water. Heck, you can feel the pressure when you dive into a pool and that is single digit feet. You wouldn't even notice the 100 feet of air compared to 8-10' of water.

[bigrobwoot]

But in the test, they were in air, not water. And I'm under the impression that what happened is due to the increased air pressure affecting breathing and such, but is that where I'm wrong? Because if you are scuba diving, the air is in a tank so it is not affected by the water pressure, so neither should your breathing in my mind. Are these effects due to the pressure on your body, not due to the air pressure affecting your breathing?

[Dean]

OMG... Go do some research on the bends if this is not making sense. There are web sites/people with way more experience and knowledge than I have.

You can't breath water! the pressure of the air in your body must equal the pressure outside, or you get crushed. The test they are doing is the same as if they were scubaing at that depth and pressure. In this case, they just pressurize the air a whole lot instead of getting wet and wearing masks.

In the other test, they suck the air out simulating altitude.

[bigrobwoot]

I never claimed to be an expert on scuba diving, don't get mad, I'm just trying to understand. I don't see how this test is the same as scuba diving. Are you saying that the air you breathe in while scuba diving increases in pressure as you dive deeper?

[100_Percent_Juice]

[bigrobwoot]

Did I pwn myself again? That's like the 5th time in like a week... I need to quit posting for a while... I'm on timeout lol

No for real tho, I don't get it

[MattR]

I love weather.com
http://www.weather.com/multimedia/vi...r_outlet_video

[sperry]

Originally Posted by bigrobwoot

I never claimed to be an expert on scuba diving, don't get mad, I'm just trying to understand. I don't see how this test is the same as scuba diving. Are you saying that the air you breathe in while scuba diving increases in pressure as you dive deeper?

Put it this way. If you have a balloon with 1 cubic foot of air in it and drag it down to the bottom of a 10' deep pool, that balloon would go from the size of a basketball to the size of a baseball. All the extra pressure from the surrounding water compresses the air inside the balloon.

So, to inflate that balloon to the size of a basketball under 10' of water, it would take a lot more extra air, right? That's exactly what happens to your lungs underwater when scuba diving. All the water pressure outside your body compresses you and your lungs, requiring you to breath compressed air in order to be able to fill up your lungs all the way when you inhale. In fact, if the air weren't compressed, you wouldn't even be able to inhale because your diaphragm isn't strong enough to counter all the water pressure if the air you're sucking in wasn't "as thick" as the water.

Now imagine what happens to that balloon underwater that's been filled up w/ compressed air to the size of a basketball when you let it float back to the surface. Without all that water on the outside of the balloon pushing on the air inside the balloon, the balloon expands and pops. That's what the bends is. When you're underwater breathing all that compressed air your blood stream ends up with compressed oxygen/nitrogen/etc in it. If you rapidly return to the surface, all those little "balloons" of compressed air in you expand and kick your ass. That's why you have to return to the surface slowly and reduce the compression level of the air you're breathing as you go so by the time you're back to the surface, you've swapped out all the compressed air in your blood for uncompressed air.

If you can't gradually ascend, that's when they have to toss your ass in a hyperbolic chamber and crank up the air pressure to the same air pressure of the compressed air you were breathing underwater. It's like putting you back under water w/o the water. Then gradually let up that air pressure to keep you from dying.

[bigrobwoot]

Oh, I was focused on the airtank, not the person... And that was a much better explanation of the bends than I got in whatever science class that I learned about it. Thanks

[cody]

Scott, where do babies come from?

[sperry]

Originally Posted by cody

Scott, where do babies come from?

Well Cody... when a mommy and a daddy love each other very much, they share a very special kind of hug...

[Dean]

Originally Posted by MattR

I love weather.com
http://www.weather.com/multimedia/vi...r_outlet_video

I'd hit that...

[van]

Awesome!

[van]

http://boston.redsox.mlb.com/media/v...ent_id=5224267