What causes a tide?
Gravitational forces of the moon and sun, and the spinning rotation of the earth, make tides rise and fall by tugging on the surface of the ocean. Eventually the surface mounds up and outward towards the moon. Along with daily movements of the moon, monthly lunar cycles are known to impact tides. While the moon pulls the water towards itself, it creates a lunar tide. This is a bulge on the surface of the ocean closest to the moon. As the moon rotates around the earth, the bulges shift, causing a change in the water levels.
Why do I care?
Chances are highly likely that you, the reader, live within driving distance of the Bay of Fundy. If you do not know where it is, here is a picture!
The Bay of Fundy is known to have the highest tides in the world. The average tidal range of oceans around the world is 3 ft. With the amount of water, the depth, and its unique shape causing resonance, these tides can range between 11-53 ft! The earth has a weak control over water because it is a liquid substance that is free to shift as it pleases. It is extraordinary how something that is 384,403 kilometers away can affect the world on a daily basis. That is why you care.
Thursday, January 20, 2011
Monday, January 10, 2011
The Universe and how it came to be.
The Big Bang theory explains how our universe came to be. It is said that it began as a small, hot, and dense, lets say "thing", over 13.7 billion years ago. It has expanded and cooled to what we know of it today. I find it neat to learn about the universe, and it is surprising when you notice just how small we actually are in relation to it, but what was there before this massive mess appeared? What made the universe? It is impossible for us to find this out with the technology today, so for now, we will consider a possibility.
The first thing I think of when I imagine the orgin of the universe is the orgin of me. I know that I came from "stuff" in the solar system, so is it not possible that the universe came from "stuff" as well? It could simply be another universe in a local cluster of universe's. If this were true, we'd be left wondering where those universes came from, and the questions would go on forever. I'm sure many scientists have tried to discover the explanation around the coming of the universe, but it is gonna take ALOT of time and tests to find the true answer. Its quite possible that this information could never be found, and civilization would end up extinct without an explanation as to where everything came from.
The first thing I think of when I imagine the orgin of the universe is the orgin of me. I know that I came from "stuff" in the solar system, so is it not possible that the universe came from "stuff" as well? It could simply be another universe in a local cluster of universe's. If this were true, we'd be left wondering where those universes came from, and the questions would go on forever. I'm sure many scientists have tried to discover the explanation around the coming of the universe, but it is gonna take ALOT of time and tests to find the true answer. Its quite possible that this information could never be found, and civilization would end up extinct without an explanation as to where everything came from.
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