Yes, here’s why!
Scuba diving makes you smart in more ways than you think. A lifestyle spent mostly underwater shows explorers having the adventure of a lifetime. Do you ever wonder how explorers come to do what they do? Have you ever thought about how they do underwater exploration?
But what about learning to dive?
The collective knowledge of physics and science is part of the procedure when you learn to dive. Non-divers think physics and science are for geeks, but scuba divers are smart and they grasp it – physics applies to real life and scuba divers. Let’s see how?
Why is it easier to read your gauges underwater?
You might notice your gauge numbers are easier to read underwater than on the surface. Why is this? Objects appear larger underwater when you wear your scuba mask. This phenomenon is down to “Snell’s Law.” Which says, “Light refracts between the water and the airspace in your mask that magnifies objects and makes them appear closer.” You might notice this when you reach for the anchor chain of the boat, and it is not there. The chain seems larger and is not exactly in the position that you thought it was.
Do you know why a huge 100-ton ship can float?
In principle, it is the same reason that makes divers float or sink. This is called the Archimedes’ Principle. It states; if an object is less dense than the fluid it’s in, it will float. If the object is denser than the fluid, it will sink. Your goal, as a diver is to become neutrally buoyant. To achieve this skill, where you neither sink or float you must use your BCD to make you equally dense as the surrounding water.
Why does a ping pong ball implode when you take it to a depth of 18 meters/60 feet?
Understanding water pressure and how it works is one of the most important laws in physics for a scuba diver. Boyle’s Law covers the results of depth, pressure and volume which is crucial knowledge for scuba diving. If you have a flexible object with closed airspace, a ballon or a BCD for example, the air inside it will reduce in size as you descend on a dive. Why does this happen? The pressure of the water increases as depth increases. While going deeper makes airspace smaller, the opposite effect happens when you ascend.
This leads to the fact that during a scuba dive you should never hold your breath. This is one of the first rules you will learn in your PADI Scuba Diver or PADI Open Course. As you ascend, expanding air in your body needs an escape route so you do not damage your lungs. The escape route is secure when you continue breathing, and the expanding air will vent back into the water as you exhale.
Why are you hungry after a dive?
Post dive, divers often feel tired, hungry and cold. Why is this? One cause is the thermal conductivity which causes you to turn cold. Water conducts heat away from your body at a faster rate than air does. Underwater, your body works harder to maintain body temperature, so you use body fuel to provide energy. As you swim, energy slowly drains out of your body, leaving you tired and hungry. Back on land, your body demands food to refuel and then tiredness kicks in during the surface interval.
As you see, a scuba diver is smart in physics and puts this into practice each time they dive. You can learn much more on this topic when you begin your PADI Divemaster course or Internship.
Safe diving everyone.