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Very interesting analogy, although perhaps taking a bit of imagination. Perhaps a subway station would be a better analogy. I'm thinking of the capillaries being trains, perhaps the Red blood cells being the train cars. The alveolar/capillary walls and the pores of Kohn would be the doors. The Alveoli would be the walkways. Air being crowds of people milling about. As the RBC's pass by, the Carbon Dioxide gets off the train, passes through the capillary walls and into the alveoli joining the crowds of "air" milling about, while oxygen passes the other way. I believe it is all a passive process. So the boarding / deboarding is only a will to go where fewer Oxygen or Carbon Dioxide molecules are. And in theory it could be two way with excess oxygen getting off, and perhaps reboarding. And Carbon Dioxide getting off and back on too. But, in general, more carbon dioxide gets off and more oxygen gets on.
What else can I help you with?
Why do you say that the lungs work like a train station?
Just as a train station serves as a transfer hub for trains traveling to different destinations, the lungs serve as a transfer hub for oxygen and carbon dioxide during the process of respiration. Like trains carrying passengers and cargo, the lungs exchange gases to supply the body with oxygen and remove carbon dioxide waste.
Can you give an example of relative motion?
A train you are on is passing a station at 50 mph, you are running (in the same direction) along the train at 5 mph (relative to the train). But are moving at (50 + 5) 55 mph relative to the station.
What do you call an effect where in the pitch of the whistle rises as the train approaches the station and falls off as it moves away?
This effect is called the Doppler effect. It occurs when there is relative motion between the source of a sound (like a train whistle) and an observer. As the train approaches, the sound waves are compressed, resulting in a higher pitch, and as it moves away, the sound waves are stretched, causing a lower pitch.
How does the electromagnet train work?
Popularly called MegLev there are two different modes of operation. When the train is still at the station it can be held by magnets. In motion electromagnets are like an electric motor that has been flattened out. The stator on the ground ( the tracks ) and the rotor being the train. The train is confined with magnets and electromagnets. The linear motor can be in the train, "the tracks" or both. Preferable would be a combination with the tracks pushing and levitating the train along with permanent magnets. The train with balancing magnets and electromagnets to keep it in the track and going. There is a way of putting the magnets together with their fields at right angles to each other. This puts the magnetic force on one side.
Why is it better that the lungs are spongy rather than empty like a balloon?
The spongy texture of the lungs provides a large surface area for gas exchange, allowing more oxygen to enter the bloodstream and more carbon dioxide to be expelled. If the lungs were empty like a balloon, they would have a smaller surface area and would not be as effective in exchanging gases.
Why do you say that the lungs work like a train station?
Just as a train station serves as a transfer hub for trains traveling to different destinations, the lungs serve as a transfer hub for oxygen and carbon dioxide during the process of respiration. Like trains carrying passengers and cargo, the lungs exchange gases to supply the body with oxygen and remove carbon dioxide waste.
Where is the setting for Ernest Hemingways story hills like white elephants?
A train station in Spain
What word can go in front of writer town train ship?
The word that can go in front of "writer," "town," "train," and "ship" is "station." You can have a "station writer" (a writer based in a particular location), "station town" (often referring to towns near transportation hubs), "station train" (as in a train station), and "station ship" (like a port or naval station).
Where does Hills Like White Elephants take place?
In a small cafe beside a train station, in Spain.
AMTRAK is a train station right?
Yes it is. It is one of the biggest train stations like EVER, and it's also a train company.
Where does hills like elephants take place?
A Spanish train station
Sanger suggests that life is too much like a train station and children arrive at that station too often in the condition of?
Birth control advocate Margaret Sanger views newborns as refugees in a train station.
How are compound complex and simple sentences written?
Complex sentences have extra clauses inserted like this; The train, which wheezed like an old man, left the station. Simple sentences only have one clause, like this; The train left the station.
What is the meaning of railway?
A railway is like a train station where trains pass and go.
What does stationed mean?
it means like a pitt stop for example train station.
Where is the setting for the story Hills like White Elephant?
A train station in Spain
What is the analogy steamer is to pier as train is to?
The analogy steamer is to pier as train is to station. A steamer is a type of boat that docks at a pier, just as a train is a mode of transportation that stops at a station. Both piers and stations serve as points of arrival and departure for their respective modes of transportation.
