The Respiratory System
During the previous post about the greenhouse effect, we were trying to put CO2 in the jar. This made me curious about the respiratory system. In today's blog post, we are going to cover all the things I learned about it. In the following table, you can see the percentage of gases in the atmosphere and how these percentages change if we re-breathe the same air. As we breathe in, the oxygen depletes and gets transformed into carbon dioxide. So, by breathing in and out using a balloon I managed to increase the percentage of carbon dioxide to do my greenhouse experiment. This is a process that is not healthy and you're not supposed to do it, but a one-shot for the experiment was okay. In fact, this is exactly what happened to astronauts aboard Apollo 13 mission to the Moon in 1970. Notice also how our body totally ignores the nitrogen. I also learned how breathing happens by using a muscle called the diaphragm, which contracts to create more volume inside our chest. This low...