Category Archives: Science
The other day I was Wiki Walking and ended up reading about the Rare Earth Hypothesis in reference to the Fermi Paradox and the Drake Equation. We’ve discovered that most stars in our galaxy appear to have planets of some kind, although ones with human-friendly environments may be quite rare. The presence of a plethora of planets presumably provides a potentially large factor for at least one part of the professor’s pretty problem.
But it’s possible that some of its other factors are extremely small. They may be much smaller than anyone had imagined. They may be so small as to ensure that we are alone in the galaxy.
It’s even possible we are alone — or nearly alone — in the universe!
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8 Comments | tags: alien contact, alien vistors, aliens, Captain Kirk, Captain Picard, Drake Equation, Fermi Paradox, Golgafrincham, Hitchhikers Guide, Prime Directive, Rare Earth Hypothesis, Star Trek | posted in Basics, Science
I’ve been playing with Python and POV-Ray, catching up on movies, enjoying the continued nice weather, and even getting in some reading. Yet it’s still weird how little I seem to get done considering the days are all mine. (And I still haven’t fully shaken the sense that all this free time ends at some point.)
For now, I plan to focus on project work—the previously mentioned Python and POV-Ray playing—so there may be a pause in the posting while I putter (possibly a plethora of pauses). Please stay tuned!
In the meantime, I have some questions:
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28 Comments | tags: atheism, Joy, meaning, POV-Ray, purpose, Python, spirituality, suffering, theism | posted in Basics, Life, Philosophy, Religion, Science
I’ve gotten spoiled. Writing about the con carne topics is much harder than writing about the life stories and the off-the-cuff opinions. Meaty topics require research and fact-checking (and often I need to create the images). And I expect they’re also harder to read!
My intention here was always to write mostly about ideas with a fallback of writing about things and, to a lesser extent, writing about life (which is to say, about people).
Today’s post keys off a Saturday Morning Breakfast Cereal cartoon I saw a while back. At first the cartoon spoke to me, but the more I thought about it, the less I agreed with it.
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8 Comments | tags: Dune, Fahrenheit 451, Frank Herbert, George Carlin, Ken Follett, Larry Niven, Lee Smolin, Pillars of the Earth, Ray Bradbury, Ringworld, Robert Pirsig, SMBC, Winston Churchill, Zen Motorcycle | posted in Books, Life, Philosophy, Religion, Science, Writing
I woke early to the sound of thunder this morning. It was hot enough earlier in the week to force me back to enclosed air conditioning. Friday, I realized it had cooled off enough to open the windows again. I very much prefer breezes blowing through my place. The weather witches mis-predicted rain Friday and Saturday but got it right Sunday morning.
I lay in bed sleepily thinking how much I enjoy the sound of rain and thunder. That thought was immediately followed by the realization that I needed to wake up and go close some windows! As the rain continued, I began to wonder if the Twins game today would be rained out, but now it’s just partly cloudy, so no problem.
I thundered yesterday, but on Sundays I try to be sunny (or just partly cloudy).
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8 Comments | tags: canine, Canis lupus familiaris, dogs, love, needles, NOVA, phobias, thunder, time, University of Virginia sundial | posted in Life, Science
If you have read this blog much, you know that a topic that interests me greatly is the nature of consciousness. How is it that a three-pound clump of cells, a brain, gives rise to the rich experience of consciousness, our minds? Cognitive scientist David Chalmers termed this “the hard problem” of consciousness, and as it stands we really have no idea what consciousness is (and yet we all experience it all the time).
Back in 1979 cognitive scientist Douglas Hofstadter wrote Gödel, Escher, Bach, a book that attempts to answer the question. GEB, as it became known, was a large book most took as a random tour of interesting scientific ideas. But GEB did have a theme, so 25 years later Hofstadter wrote another (much shorter) book to re-state his case.
That book is called I Am a Strange Loop, and it has much worth considering!
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46 Comments | tags: brain, David Chalmers, Douglas Hofstadter, experience, GEB, mind, Paris Hilton, Philosophical zombie, Theory of Consciousness | posted in Philosophy, Science
Over the last two days I’ve written about a way of viewing words, sentences, even entire books, as single (very large) numbers. We do that by treating the characters in the string as “digits” in a number system we define. Technically speaking, we interpret the string as a number written in some large radix.
This is actually what we do every time we look at a written number. For example, we interpret the four-character text string “2013” as representing the numeric value two-thousand-and-thirteen. We do this easily, because we’ve grown up with the base 10 number system, decimal. The systems I’ve written about simply extend the concept.
Today, as a Sideband, I thought I’d get into some of the more technical details.
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Leave a comment | tags: ASCII, CP-1252, decimal, hexadecimal, Mayans, number systems, Python, radix, Sumerians, Unicode, UTF-8 | posted in Computers, Math, Sideband
Yesterday I introduced you to the idea of words as numbers. There are many ways to create a map between words and numbers. For example, we could assign them the number that represents their position in the dictionary. That would make words that start with “A” have smaller numbers while words that start with “Z” would have the largest numbers.
There are also ways to treat the words themselves as numbers. We can interpret the letters the same way we do digits. Each letter has an assigned numeric value, and then a string of letters—just like string of digits—forms a number. The scheme I showed you yesterday allows us to treat (only!) single words as numbers.
Now let’s extend this so that entire sentences—or even entire books—become numbers!
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2 Comments | tags: big numbers, number systems, numbers, positional notation, Rudy Rucker, words, zero | posted in Basics, Math
Today I’d like to introduce you to a concept I picked up from mathematician Rudy Rucker in his 1987 book, Mind Tools (The Five Levels of Mathematical Reality). I’ll warn you now that there is some math ahead (but no math homework—unless you want to). It won’t get any more complicated than multiplication and addition, but we will be dealing with some extremely large numbers (so large they are more ideas than numbers).
The end result is that we’re going to tie together the written word with numbers. I’m going to show you how every word, every sentence, every book, magazine and blog article can be reduced to a single (very large) number. That we can do this provides a foundation we can use to discover some amazing things about mathematical reality.
It may sound dry or intimidating but stick with it! You just might find it worthwhile.
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10 Comments | tags: base 10, base 2, binary, decimal, number systems, positional notation, Rudy Rucker | posted in Basics, Math
I misspent my younger days in the warm climes of Southern California. In particular, I went to high school and college there. I moved to the Midwest about seven years after college. For many, college was the end of anything resembling much in the way of time to call their own. I have many fond memories of idle times in perfect weather!
People who know me know I have a pretty intense work ethic. They also know I have a pretty intense party ethic. (Truth is I’m just intense. Period. Work hard; play hard; relax hard.) This past week — my first week into retirement — I’ve been relaxing hard.
And the weather has been just glorious this week. So far, retirement is aces!
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1 Comment | tags: algebra, backgammon, humor, math humor, peach daiquiri, pi, retirement, weather | posted in From My Collection, Life, Math
The other day I was watching a TNT rerun of Castle, a show I recently decided to check out and discovered I liked. I’m actually vaguely embarrassed — not in liking the show, it’s a good show — because I didn’t realize the male lead, Nathan Fillion, is Malcolm from Firefly (and the movie based on it, Serenity).
A while back (probably when they first began airing older episodes), TNT was running a lot of ads for the show, and I kept thinking, “Gee, that guy looks so familiar.” It took another blogger reviewing the show to make the connection. (I’m oddly bad with faces sometimes.)
It’s a good show, but this isn’t about Castle so much as coffins and creepy things.
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18 Comments | tags: Abby Sciuto, bugs, Castle, coffins, Firefly, Nathan Fillion, NCIS, NOVA, snakes, spiders, venom | posted in Brain Bubble, Science
Logos con carne 