This is the story of the universe, according to science:
1) The Beginning: 14 billion years ago, everything in the universe was contained in a single infinitesimally small point. This point, smaller than an atom, had an infinite density and contained all the matter, space, and time of the universe. The point began to rapidly expand, and as the volume of the universe increased, the heat decreased, and atoms were able to form. The first atoms consisted of mostly hydrogen and helium, since these are the lightest, simplest elements. Through the force of gravity, these atoms began to accrete and accumulate in progressively larger and larger clumps.
2) Creation of Elements: Especially large clumps would be stars, which would get so massive that the matter on the inside of them experienced insanely high pressure from gravity. This pressure produced incredible heat, so much heat that the hydrogen and helium atoms were moving fast enough to overcome their repulsion to one another, and began to crash into each other and fuse. Bigger, heavier atoms began to form. Stars that were very high in mass were able to heat their cores enough to create every element up to iron (fusing iron takes more energy than it gives out), and if one of these stars died in a supernova explosion, the massive heat of the explosion was able to create even heavier elements than iron. The dusty, gassy remains of these dead stars were the building material for new solar systems. Our sun and planets formed through the same gravitational accretion process, and each had on it many elements, including those of life: hydrogen, carbon, nitrogen, and oxygen.
3) Life Stirs: After our planet cooled and formed its huge bodies of water, organic molecules began to form naturally form. There are a few different ideas on how life first began, and none are confirmed, but the following is the most plausible. The first life forms could not have been anything like a cell today; modern cells are far too complex. The first life may have been a single self-replicating molecule, a predecessor to RNA. In the water, there were organic molecules which had one end that was repelled from water and one that was attracted. This led to naturally forming spheres. If self-replicating molecule got caught up in on of these spheres, it would be protected and had a better chance to reproduce. These were the first cells: a self-replicating molecule surrounded by a layer of other molecules.
4) Adaption and Complexity: Single-celled organisms ruled Earth for billions of years. The most dominant form during this time was cyanobacteria, or blue-green algae. These algae are responsible for putting a significant amount of oxygen on the planet, and the presence of oxygen caused a diversification of life. Some cells could now metabolize oxygen, which was more energy-packed. The first multicellular life was colonial, then some cells in the colonies began specializing in one thing. These were the first organs. To talk of our own evolution in detail would be too lengthy, but it had operated on the same naturally selecting powers as the unicellular life before it. The tree of life (for humans) goes as follows:
Bacteria --> Colonial multicellular --> Polyps --> Fish --> Amphibians --> Reptiles --> Mammals --> Tree-dwellers --> Early hominids --> Humans
5) Our Place: According to science so far, life on Earth is literally one big family. All life today are very distantly related cousins; we are all offspring of previous organisms. However, life itself is made of atoms created in the cores of high-mass stars. So the cosmos, while not alive, are by definition our family, because they gave rise to life. Despite any overtones of silly new-age mysticism, the universe is literally all one. We are part of the universe, not merely observers.
- Evan
Thursday, January 21, 2010
Monday, January 18, 2010
Might Makes Right: one Hell of a problem
Let us examine the concept of eternity. It is a concept, and is something that our minds literally cannot grasp. There is a video I have linked on the side of this page ("Hell: an excessive punishment") that has a good analogy for how long eternity is. Imagine a huge planet, made completely of bronze. Every hundred years a bird flies by, brushing its wing against the side of the planet. When the planet is completely worn down to nothing, that will have been the first day of eternity. It is too long a time for us humans to even understand. By God’s own book, no Christian should wish death or pain upon a non-believer, but God chooses to burn and torture people for eternity. Because he is all-powerful and this is his universe, he has the power to pull people out of Hell, or make it disappear completely. But no, he consciously chooses to torture people. Christians are more moral than their own God.What kind of omniscient, perfectly good being would burn and torture a living thing for any expanse of time? You and I certainly wouldn’t. But God is excused because he is so holy that he is above our morality. This creates a problem: is God good because he has good qualities, or is he good because he’s God? The existence of Hell, accompanied by the millions of people God killed in the Bible, leaves us to assume that God is good because he’s God - he is so far above us that whatever he does goes. This is a dictionary definition of might-makes-right, or a dictator. God obviously does not have the good qualities that his followers insist upon, but rather has such a high position that we are victims to whatever he wants. Does this sound like a supreme, perfect, and good being?
Such a supreme being wants and needs nothing. So what is he doing? Why do we concern him? Why did he come down to this tiny planet on the outskirts of one random galaxy in one corner of the universe and make little miniscule, material creations that have to prove themselves to him? Why is he so offended by these insignificant creatures if they don’t worship him? Why does he want people in Heaven? To have company? These questions are simply unanswerable by Christianity; they don’t know God’s true motives or his actual plan for us. All they know is that they must unquestioningly worship and praise him. They must realize that to someone who is outside of religion, it all seems very strange.
- Evan
Sunday, January 17, 2010
Trees Grow Out of the Air
Richard Feynman is a renowned physicist, known for his lectures and interviews, and known in the physics world for his contributions to quantum mechanics and particle physics. In his interviews he often enjoyed talking about everyday objects or occurrences that are “fun to imagine” on the atomic level. There is a “Fun to Imagine” series of Feynman clips on YouTube, and I’d like to share one in particular that blew my mind. In the beginning of the 5-minute video, he speaks of how fire works, then he goes on to explain how a tree works. It’s the tree segment that I will paraphrase:
People think that trees grow out of the ground. In actuality, trees grow out of the air. The substance of a tree is mostly carbon, which comes from the air in the form of carbon dioxide. Carbon dioxide goes into the tree, and the tree changes it, kicking out the oxygen, and uses the carbon as the base of all the new material it creates. The tree also uses water from the ground, but that water rained from the sky. There’s a little from the ground, some minerals and such, but most of the actual substance of a tree comes from the air.
We mentioned that carbon dioxide is changed by the tree to retrieve just the carbon. How is the tree so smart as to manage to separate the carbon from carbon dioxide? Ah, life! Life has some mysterious way! No - the sun is shining, and it’s the sunlight that comes down and knocks the carbon free. So it takes sunlight to get the plant to work.
What an amazing world we live in. As Feynman himself said, “nature’s imagination is so much greater than man’s, it’s never gonna let him relax!” My explanation can’t give the video justice, you’ll just have to watch it yourself!
- Evan
People think that trees grow out of the ground. In actuality, trees grow out of the air. The substance of a tree is mostly carbon, which comes from the air in the form of carbon dioxide. Carbon dioxide goes into the tree, and the tree changes it, kicking out the oxygen, and uses the carbon as the base of all the new material it creates. The tree also uses water from the ground, but that water rained from the sky. There’s a little from the ground, some minerals and such, but most of the actual substance of a tree comes from the air.
We mentioned that carbon dioxide is changed by the tree to retrieve just the carbon. How is the tree so smart as to manage to separate the carbon from carbon dioxide? Ah, life! Life has some mysterious way! No - the sun is shining, and it’s the sunlight that comes down and knocks the carbon free. So it takes sunlight to get the plant to work.
What an amazing world we live in. As Feynman himself said, “nature’s imagination is so much greater than man’s, it’s never gonna let him relax!” My explanation can’t give the video justice, you’ll just have to watch it yourself!
- Evan
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