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Just my thoughts #0815

Optimization: Adjusting something to reach its best state for a specific purpose. We often think that the fastest and strongest options are the best. The fastest way down a slope isn’t a straight line, but a parabola that naturally connects high and low points. A sniper can cause more lethal wounds at 400 meters than at 200 meters. Although the bullet travels faster at 200 meters, the wound size isn’t as large, and at 400 meters, the slower-moving bullet over a longer distance causes more friction as it passes through the wound, resulting in more severe injuries. In every situation, there is an optimal choice suited to the goal. Trial and error are useful for finding this optimization. - Joseph’s “just my thoughts”

Just my thoughts #0599

Diving into the water without an oxygen tank is called ‘ free-diving .’ It is a form of apnea diving in which divers must hold their breath for an extended period while diving deep into the water with just one breath of oxygen. The difficulty in holding the diver’s breath during this time is not due to a lack of oxygen but rather an increase in carbon dioxide concentration. In other words, if you keep your heart rate low and your metabolism slow, you produce less carbon dioxide, which allows you to dive for a longer duration. The only way to maintain a low heart rate is to remain as calm as possible. Maintaining calmness has numerous benefits in life. - Joseph’s “just my thoughts”

Just my thoughts #0230

Human blood is a liquid that maintains a pH between 7.3 and 7.4. A change of just 0.2 in pH can be fatal. The substance responsible for regulating blood pH is carbonic acid. When carbonic acid dissolves in the blood, it creates a cooling sensation, contributing to the appeal of drinking soda. Humans convert food into glucose through digestion for energy, and this glucose combines with oxygen in a process called breathing to generate carbon dioxide, water, and ATP, which are essential for energy production. A significant amount of carbon dioxide is produced in this process. To meet a daily energy requirement of 2,560 calories, one needs to burn 640 grams of glucose with oxygen, resulting in the production of 938 grams or 552 liters of carbon dioxide. When carbon dioxide dissolves in water, it forms carbonic acid, which circulates in the bloodstream and exits the body through the lungs. While some argue that soda is unhealthy, especially for individuals with specific conditions, it is es...