The Four Forces

How has e=mc2 affected you?

Our bodies convert mass to energy every day through digestion. The food we consume has used the energy of the sun and converted this to mass, in the form of plants that use photosynthesis. When we die and our bodies decompose, we provide nutrients and energy to the soil, making it fertile. e=mc2 is a law that is integral to our daily existence, but now that we know the formula we can construct new technologies to exploit this natural law. Our cars are powered by the conversion of gas to energy, one way in which we've harnessed the conversion of mass to energy.

How would you compare the four “forces”?

The strong nuclear force is a force essential to form the basis the life, it allows protons and neutrons to form through the attraction of quarks. The weak nuclear force allows for changes to the protons and neutrons, such as occurs in radioactive decay. It is a weaker force that is responsible for changes in mass over time. Electromagnetic force is different in that it involves a closed circuit that is catalyzed once energy has been inserted. It runs through the circuit once and then stops. Gravity is a weaker yet omnipresent force that has shaped our universe. It's full impact can be seen on a broader scale, as opposed to the nuclear forces which act on a minute scale. 

What is the function of gravity?

Gravity has carved out the universe and arranged our planets around the sun in an orbit. It is responsible for the arrangement of our solar systems. It keeps silent order on our planet by keeping our feet on the ground and allowing us to predict which way an object will fall. We can observe it in our every day lives yet it also has played a huge role in allowing for our universe to exist.


Comments

  1. I like your examples of digestion and photosynthesis as evidence for e=mc2. I think describing the concept in that way will be very helpful in explaining it to other people outside of this class. Thanks!

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