The Soft Drink Experiment That Explains Nitrogen Narcosis скачать в хорошем качестве

The Soft Drink Experiment That Explains Nitrogen Narcosis

Think you learned a lot? Take the What diving does to your body and why test at http://underseag.com/index.php/8-feat.... What diving does to your body and why in 3 minutes – Under Sea G - Divers face many obstacles to reach the underwater world. On this installment of Under Sea G, we explore the world of the diver. Diving can be an amazing hobby or it can be a career when done safely. Carry on the conversation. In 1942, during the German occupation of France, Jacques-Yves Cousteau and Émile Gagnan designed the first successful and safe open-circuit scuba, known as the Aqua-lung. The current record for the deepest scuba dive was set on September 18th, 2014 by Ahmad Gabr, a 41-year old Egyptian dive instructor, when he successfully completed a dive down to 332.35 meters/1,090 feet 4.5 inches. In 1771, Englishman John Smeaton invented an air pump that allowed air to enter the diving barrel via a hose. Frenchman Sieur Fréminet created the first diving dress that same year, which utilized a reservoir of compressed air that dragged behind the diver as he swam. This week on Under CG, we're diving into the fascinating "scuba diving physics" that explain what happens to your body underwater. We'll explore the immense "pressure" exerted by water and the "atmosphere of earth", using visuals and a simple "experiment" to illustrate these concepts. Join us as we explore the intricate details of "human anatomy", specifically focusing on "lungs anatomy", and how it adapts to the underwater world, all through the lens of "scientific diving" principles! 💬 Drop your Top 3 underwater moments in the comments! 📅 Subscribe and join the journey! Script from the show This week on Under Sea G, we're exploring what diving does to your body and why. Let's learn some science. If the world was the size of a basketball, the atmosphere would be the thickness of a sheet of paper, Not this way, but this way. Can you see that line? G's holding it and he can barely see that line. Our atmosphere stands out 60 miles above the Earth. The weight of this atmosphere is felt by every one of us every day. Don't freak out. The atmosphere is not very heavy. It turns out that all the atmosphere, 60 miles of it, only weighs 14.7 pounds per square inch. A gallon of saltwater weighs 8.3 pounds. That means that two gallons of saltwater actually weighs more than 60 miles of our Earth's atmosphere. This weight is where the difficulties in diving begin. Our bodies are mostly made up of dense stuff. Blood, muscles, nerves, bones, you know, the concoction that we call humans. Our bodies do have a few open voids: lungs and sinuses are the main ones. Ever go down in the pool and your ears pop? That's the weight of the water doing its thing. When you dive down in the water, all of that water on top of you weighs down on you. 60 miles of the atmosphere weighs 14.7 pounds. When you dive down to 33 feet, that 14.7 pounds doubles to 29.4 pounds per square inch on your body. Watch this water bottle as I take it down 33 feet. There's nothing special about the water bottle. It was full of air at the surface. It is impressive to see what happens as I descend. The same thing is happening to my lungs at this same time. Divers counteract this pressure was several techniques. We clear, i.e., we pop our ears. Divers don't hold their breath while diving. Scuba equipment also helps by providing higher pressure air for divers to breathe when the diver is in a high-pressure environment, i.e., deep in the ocean. Recreational diving has a limit of 135 feet. When you pass this depth, oxygen toxicity and nitrogen narcosis become very dangerous, so only licensed divers exceed these depths. When this soft drink was created, the maker injected carbon dioxide into the can to make it fizz when you open it. The same thing happens to divers as we go down into the ocean. The only difference is that carbon dioxide was used in the drink. In our bodies, nitrogen is forced into our tissues as we descend. To get the nitrogen back out of our bodies, divers rise slowly. All dives have a three-minute safety stop at 15 feet. Technical divers may make many stops along the way. We have to get the nitrogen out of our system before we can return to the surface. What happens if a diver was to rush and not do safety stops? Just like the soft drink, the bubbles have to come out. The bubbles in this drink came out and can be cleaned up with no problem, no harm, no foul. The nitrogen bubbles that come out of our tissue go into our blood. This is very bad. These bubbles cause serious injury to a diver and may end their life. The important lesson here is that diving is safer than driving a car when you follow the rules. G has been diving for over 25 years. I love and respect everything about diving. Because I follow the rules, I hope to be diving for a long time.