Physics applies to everyday life whether we believe it or not. We say when we learn physics, we will never need it later in life because it wouldn’t apply to you, well however, you’re very wrong, physics applies to us in many ways that our involuntary to our actions and even some voluntary. For example, some results of physics in everyday life are 1.) The ability to be able to breathe, our number one source of life. Little did we know, but us breathing, inhaling and exhaling and airing out the lungs and expanding the chest is all a result of, Boyle’s Law. Breathing in everyday life and with physics has a direct inverse function as explained with the chest and releasing pressure and CO2 in the lungs to exhale.  That is just one critical application that applies to physics in real life. Examples of others are as followed, Circulatory system relating to Boyle’s law, Walking dealing with Newton’s Three Laws of Inertia, Cooking with heat transfer, Seeing with bending and refracting light waves, Hearing with sounds waves and measured in Hz, and etc.First i’m going to talk about how breathing relates to everyday use of physics. As mentioned in the introduction, Boyle’s law is responsible for this action in the scientific world. Breathing is a direct inverse function meaning that as you inhale and increase volume of Oxygen you are taking into your body, the lower the pressure will be throughout your body and your lungs. At that point you are at an equivalence point because once the chest is expanded and there is low pressure, for a brief second, there in no more air rushing in and there is no pressure increase,they are stable. Now as you release the gases within your body through exhalation, you are increasing pressure causing air to rush out releasing C02 part of the respiratory system and lowering the gas levels built up in the lungs and in the body. Caused by diffusion, pressure is increased to let the excess CO2 release through air passages while the body absorbs the Oxygen into the bloodstream to keep it rich. Another  application that Boyle’s Law plays a part in is the circulatory system. Now the circulatory system has many muscle function, but one critical to our survival is that function of a healthy heart. As the heart muscles contract, a high pressure region forms causing the blood produced within the heart to propell and regain inside the arties later transported to the veins to keep the blood flow going and the absorption of oxygen stable. After the blood is expelled, the heart goes back to its resting form, resulting in a low pressure region allowing blood to run through the veins back into the arteries and heart. The heart having four chambers and valves mechanisms that all work together to have an inverse function pumping blood and relaxing the heart muscles leading to what we use as involuntary physics each and every second of the day.Next, another big topic that we do everyday and is such a simple task but we never see the underlying science to it is walking. Walking deals with many applications to physics such as weight, Newton’s Three Laws of Inertia, Friction, Gravitational Force, Kinetic Energy and Potential Energy. We act as inverted pendulum as we walk. As we place feet on the ground, an arc is created because your weight is centered and your foot acts as support and backwards force creating equal weight which is why it centered mass. When we set foot to walk on the ground, a backwards force is applied to to the ground, and in response to our centered weight, naturally, equal force will be applied in the opposite direction which is vertical in nature slowing the force of our leg down until the centered mass is moved to move into your next position. Now also a inverse reaction, as you walk, you create kinetic energy and friction on the ground resulting in a zero potential energy because it is already being used, but when you raise your leg in an arc to take your next step, the potential energy increases to what the kinetic energy was initially resulting in now a 100% potential energy with no kinetic energy and no friction being applied. Due to human nature, not all potential energy is turned into 100% kinetic energy when the next step is taken, we act as a imperfect pendulum. Some of that potential energy can be lost or converted into a different energy helping out the kinetic energy. So, as we know, th 100% potential energy formed in the leg when it makes its arc will not transfer all pure energy to the kinetic energy, it will be a breakup og 65% of the kinetic energy will be made up of the potential energy and the remaining percents will be , made up by a biochemical process. NOw after getting the basics out of the way, going back to Newton’s Three Laws of Inertia, which state as a first law is that an object will always rest in its same place until a force greater than the weight of the object is propelled on it. When we don’t move, the inertia force is at its maximum. In this case, the body will need a greater force than the bodyweight itself to break the inertia barrier and get moving creating kinetic energy alone with potential energy and friction. The potential energy and interia lying in the foot when resting will first be transferred to the upper body parts resulting in the human body to walk and the fluctuation of inertia within the foot as it is placed back on the ground for every other step. So when still, the inertia is at its maximum, the foot is not moving and having a greater potential energy, and when the foot moves, that potential turns into kinetic energy resulting in now a zero inertia and a zero potential energy. Now the Second Law of Inertia applies to walking as we put force to the ground, we will have a constant velocity without acceleration, but as we exert more force to the ground, the second law of inertia proposes that we will move at a greater speed and a greater velocity. Now if we increase that force everytime we place a foot down, we will have an increasing velocity with a increasing acceleration due to the second law of motion.  Now the Third Law of Inertia is about action and reaction. Equal forces will be applied to each other. So as we place a foot on the ground, and place weight on it, out of pure nature, a equal vertical force will be propelled back into the exerted force canceling each other out and having a no flux in the force change. Finally, we get to the everyday conventional heat that has many uses. Thermodynamics is just simple physics that deals with heat, well we use heat everyday in one form or the other. As we know, heat it a transferable energy from one object to another. As we know, heat can not transfer to an already heated surface due to the fact that the heat will just blend with the already preheated surface. For heat to exchange and transfer, the object it is transfering to will have to be a cooler temperature then of that being transferred. For example when we boil water, you place cold water into a cold pot and place it onto a heated stove. After a while, the heat will finally break the barrier and will transfer enough heat from the heat source to the cold pot resulting in the increase temperature of water causing it to boil, kinda like a double heat placement. In science, the phenomenon of heat transfer is known as conduction. When we notice bubbling in the water when we boil it, the water molecules on the surface of the pot are the first to be heated causing them to exceed the temperature around them causing air pockets and for them to float to the surface creating a bubble, and the same as the surface bubbles which are colder, which then surround themselves to the bottom of the pot to then be heated and the cycle repeats until the water is gone. The result of the heat transferring and the water exceeding boiling temperatures, matter and energy are lost.So in conclusion, as we know, physics does apply to everyday things and yes you will need physics for everyday activities whether they are voluntary or involuntary. From walking, to seeing, to cutting, even to cooking, you still need physics. Physics is an essential part of the human race and the world around us, everything is based around physics from the most simplest form to the most complex form, there is physics for everything. Physics isn’t always about the mathematical work process, it’s also about the unexpected applications that are visual to the eye, and physics is the keep and base to all things we do and participate in.

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