The 4 Four Fundamental Forces
Gravity, the weakest of the four forces, but is the one we recognize on a daily basis. It's what keeps us physically on this planet. Newton described it as "Every object in the Universe attracts every other object with a force directed along the line of centers for the two objects that is proportional to the product of their masses and inversely proportional to the square of the separation between the two objects."
Electromagnetic Force has to do with the attraction or repulsion of positive and negative charges. This is the attraction that keeps atoms together.
Weak Nuclear Force is the force responsible for radioactive decay and is said to be capable of transforming neutrons into protons and vice-versa.
Strong Nuclear Force, which is the strongest of the four forces is the glue that keeps the protons and neutrons confined to the nucleus.
The function of gravity, we may never know, but I find it interesting that at different spots on earth, there are different fields of gravity. Or different strengths on the objects in that area. I think I am very sensitive to gravity and pulls it has on the water in my body. I wonder how I would be affected by living in different areas on Earth.
oooooh good answer to the first question! I wasn't thinking about it like that, I was thinking about the question and not about the things that the equation is trying to explain. Thanks!
ReplyDeleteThanks for the great explanation of the four forces, i found it hard to grasp. Its pretty amazing to think about how important the sun is to us as human beings. We are most definitely children of the sun. I have also thought about how different areas of the planet whose gravity is different might effect us emotionally or physically. Love the animated version of the gravity measurements!!
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