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Eternal or Infinite?

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 04-05-2009

This video is very thought provoking and I’d like to hear your opinions about it. One thing I know, and that I’d like to meet that young man ten years from now, and see what he has learned from experience. My faith has been challenged to its foundation; I once was much like him. Although now my faith remains in the God of the Christian Bible, I have many more questions than when I was his age.

Thanks to David Morán for posting it on his blog El Catracho.

I Love the Whole World

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 02-01-2009

Although this is a commercial for Discovery Networks, I can’t agree more. This sums up why their programs have been my favorites since cable TV erupted into the scene in the late nineteen-eighties. I like that they included Stephen Hawking at the end.

Alice’s Adventures in the Classroom

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 03-09-2008

Alice is a tool for creating virtual worlds, that teaches its users how to program, by creating an attractive visual metaphor for the building blocks of structured programming: sequence, choice, and repetition. It is impossible to make a syntax error with the software, as almost everything is drag-and-drop. Its purpose, to teach computer programming to a generation growing increasingly averse to studying computer science, especially women.

Computer Science is usually grouped with mathematics in college, and both suffer from a tremendous gender gap. In my four years of college I didn’t have a single woman teacher, except in history, literature and political science. Most of my classmates were guys, and some needed to shower more often. Of the six women studying computer science with me, two were Russian, one was from El Salvador, and only two were from the US. The disparity has gotten worse since then, together with a general distaste for math-laden careers.

Enter Alice into the picture. Created by Carnegie Mellon researchers, the late Randy Pausch among them, their studies have shown that average grades among the at-risk students improved from “C”s to “B”s, and retention increased from 44% to 88% when using Alice. Hopefully more high schools and universities will use Alice or similar programs to teach introductory programming

Shoot it Down

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 21-02-2008

Oops, I goofed when I hit the publish button, this article wasn’t ready yet! I thought I was simply hitting the “Save Now” button. I guess I had the jitters because of my US Embassy Visa interview today (which went very well).

The article was perfect and ready later in the morning, but then, horror of horrors, my computer froze, and I lost all my work. Since I don’t have a computer at home right now, that doomed the entry. I tried to write it again in the afternoon, but my inspiration got sucked into the vacuum of a dreary day of work.

It was supposed to be a spoof article about the US military setting up a decoy satellite, the Chinese spotting a picture of Darth Sidius on a bulls eye on it, and deciding to build their own decoy, and both governments saying “它擊落” (shoot it down)…which might have actually happened, who knows.

Here are the links anyway:

Celestial Show Tonight

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 20-02-2008

Be sure not to miss the lunar eclipse tonight. Get the rechargeables ready, wear something warm and shoot the moon! (Using a digital camera, high-powered rifle optional). Unfortunately my rechargeable batteries take 6 hours to charge, so I might miss the photo shoot!

I’m a moon addict, I confess.

Image by Gary Turner, used with a creative commons license

Saturnian Flying Snowplows

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 07-12-2007

I saw a video once on NASA’s Astronomy Picture of the Day that showed how tiny moonlets Pan and Atlas formed gaps in Saturn’s rings. These moons attract the rocky debris that make up the rings and clean up an avenue in the ring system like snowplows.

This video shows how all that matter has formed an equatorial ridge, which makes the moons look like flying saucers, or bumper cars.

Moral Relativism

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 24-11-2007

I remember the dismay of my high school ethics teacher when he asked his teen-aged class whether any action was “always right” or “always wrong” or whether it depended on circumstance. Almost all the class concluded that circumstance determined whether an action was right. We grappled whether stealing was justified by the need to survival, and other juicy philosophic questions.

A Victorian perception of ethics has been exposed as ethnocentric and fraudulent by a generation of existential philosophers. What we are left now is a deceptively unified agreement to disagree. Any one who claims to know universal truth is immediately beaten down as closed minded, intolerant and offensive.

This moral framework leaves agnosticism as the only logical option for thinkers and scientists, TV presenters, and any public leader. The proclamation “God is Dead” resounds through our seats of government, colleges, and even some churches, although their clergy try to camouflage it. To share one’s religious beliefs is an act of insult. To be a missionary is to be a religious extremist, a cultural terrorist.

These questions gnaw at me, ever since I decided I would be a part of a mission team. I certainly don’t feel like a missionary! I find it difficult to have zeal. I do, however recognize the hand of God in many small things that happen to me. I can defend orthodox theology skillfully, but how do I fight the framework of relativism? What use is theology to the postmodern unbeliever? I can very skillfully share the gospel, I believe it fully. Yet I find it difficult to evade the label of “closed minded religious nut”.

Moral relativism is in fact a very shrewd observation. It’s basic tenet is that there are no objective observers. No one is impartial. Everyone is tainted, contaminated by culture, and cannot think outside it. Only an outside observer can judge accurately. But, there are no human outside observers. Who can we trust? No one.

What follows next is the source of the chasm. Since no one is an objective observer, some have concluded that everyone’s beliefs are valid, even though they are contradictory and mutually exclusive. Many people of faith conclude differently, however. We conclude that if all humans are invalid observers, we need someone who is not human, the true God, to illuminate our minds with objective truth.

The great error of atheists (not agnostics) it that they think only the believers are biased. They do not see that they are just as contaminated with culture as the believers. They have subscribed to an atheistic culture, and believe it as blindly as many religious people. They think they are the only ones with objective truth. In that they subscribe to the very same error they denounce. Atheism is their god, their religion.

The question that divides us is whether a source of objective truth exists. In my case I believe that the Bible is the best source. At first glance, the Bible fails as a source of objective truth, because we did not receive it intact, dictated from the mouth of God. It was inspired by God, but written by mortal, fallible men, more than 70 of them. Many of them lived millennia apart. Their language and culture span ancient Egypt, Assyria, Greece, Palestine and Arabia. Even between those of them that lived relatively close together, there are apparent contradictions, as in the doctrines of James and Paul, for instance. Upon closer scrutiny, though, I find that it contains much timeless wisdom, unity of teaching, and accurate archaeological information. It is undoubtedly a genuine document, in the sense that it is ancient, and very well preserved.

Does it contain objective truth from God? Could these truths survive being channeled through culturally biased people? Should these truths govern our behavior now, several millennia after the ink dried on the last manuscript? I believe that the answer to these questions is “yes”.

Moebius Transformations Revealed

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 23-11-2007

Mathematics are the foundation of science and art. Music flows from them, sculpture, painting, photography, choreography and cinema all are heavily indebted to it.

Often the complex in Math can be described simply. Or the apparently simple be terribly complex. Chaos can be sometimes reduced to a simple formula. Nature shows it, from the shape of a mountain, to that of a seashell.

I know about Moebius because of his enigmatic “moebius strip” and it’s many counterintuitive properties. I did not know that the transformations that plagued me in Linear Algebra and Computer Graphics are explained so beautifully with geometry.

Infected with the Humans!!!

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 11-10-2007

Cartoon violence, beware!

Seen on everyoneisdoomed.com

Lunar Bug Splatter

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Posted by Aaron Ortiz | Posted in Uncategorized | Posted on 10-10-2007

Get a windshield Iapetus! This small walnut-shaped moon of Saturn looks like it drove through a grasshopper convention. The original pristine white finish of the moon can still be seen under the unholy black tar-like remains of who knows what! Is this the lunar equivalent of guano? What gargantuan bird would leave droppings hundreds of kilometers across?

Since the dark splatter seems to concentrate on the side of the moon that faces forward as it orbits Saturn, scientists speculate the droppings are coming from other moons that orbit Saturn. The difference in albedo (brightness) between the clean and unclean parts is so striking, that a moon-washing expedition has been considered. Umm, forget that last statement.

There is also a temperature difference between the splattered and unsplattered moon surfaces. The darker material absorbs more sunlight, which melts the snow around it, thus making the surface even darker. Just like when the black symbiote took hold of Spider-Man.

This is similar to what happened this year where Arctic ice melted because of a chain reaction involving the very same principle. Less ice means more dark water to absorb the sun’s rays, which means warmer water, which means less ice, which means more dark water…etc.

Lunar warming by splatter, great! Let’s hope an gigantic moth doesn’t cross the path of the Earth soon.

Image by NASA/JPL/Space Science Institute

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