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I'm reading about 5 amazing archaeological discoveries preserved by nature, and particularly Oetzi the Iceman.

Considering that the scientists have discovered he suffered from an infection of H. pylori, I would be quite curious to know if his subsequent beating and arrow death was the result of his fellow travelers thinking he had some form of plague, rather than it being that he just pissed off a rival gang or something.

Bananas!

Dec. 26th, 2015 10:24 am
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YouTube publisher SciShow has a huge amount of fun, short, informative videos.

Like, Why Is My Poop Green?


And, The Terrifying Truth About Bananas
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On one hand, I applaud the efforts of protecting endangered species and/or bringing back extinct species.

On the other hand, I question whether or not humans could have evolved had the dinosaurs not gone extinct.

It just make me wonder: By attempting to preserve the status quo, what other species are we possibly preventing from evolving?

WTF, Mate?

Oct. 28th, 2015 08:12 am
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I have no idea why, but this article about space debris returning to Earth has me giggling.

It might have something to do with the name given to the debris.
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I decided a long time ago that one of my long-term goals was to live long enough to be able to see Haley's comet again.

The second goal was to witness the emergence of true AI.

Now, I have a third goal: live long enough to see humans landing on Mars.

Wouldn't it be interesting to see the collision of these three goals? Can you imagine AIs helping to foster new technology that gets us to Mars and allows us to view Haley's comet from that vantage point?

I'm too old, I'm sure, and not in the field of astrophysics enough, but it would be so exciting to be one of those pioneers. Some kid out there, still in early grade school right now, will grow up to be the first human to set foot on Mars. My middle nephew is pretty smart and already shows an interest in the planets of the solar system. I bet he would thrive in this field. He reminds me of the character Vincent in Gattaca, laying out rocks in a parking lot for the solar system. I grew up enamored of Sally Ride and Valentina Tereshkova, and thought it would be awesome to be an astronaut myself. I was one of the millions of children watching the live Challenger liftoff from my school desk, and I learned the importance of aeronautical safety in a matter of seconds. I'm glad that we're taking our time and slowly testing the waters instead of jumping in head first. I wonder how much Tereshkova's influence has had in these Journey to Mars plans.
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I'm listening to Richard Dawkins' The Greatest Show on Earth (as well as The God Delusion - I'm totally double-doing my audio books right now). I'm at the part of the book where he's detailing out genus and species classifications, how those come about and are applied, and how such categories make a mess of the concept of evolution when talking about intermediaries (read: "missing links"). There are even fossils that different anthropologists can't decide on what the scientific names for them should be, because they are too much in between two other genus/species classifications.

You know, a spectrum is a spectrum, and the artists of the world learned that it's possible to have blue-green and green-blue, so why can't the anthropologists accept that as well, and just call some important bones Homo-Austalopithecus or Australopithecus-Homo and be done with it?

Also, why don't we speak in musical sounds instead of words? Granted, we have intonation, but I'm just thinking about how I can "understand" music regardless of the language of its author. I bet that's why whale song is sung, instead of articulated.

Phys Ed

Sep. 5th, 2015 08:20 am
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My nephew sprained his ankle in his P.E. class, and it got me to thinking.

P.E. is NOT Physical Education, as the name implies. Yeah, the kids get exercise, but wouldn't it be wonderful if P.E. actually was a class about educating kids on the aspects of their physical bodies? Understanding food and diet, which could include learning to read food labels. Understanding calories and other terms that relate to the balance between food and exercise and what they mean. Learning how to track daily workouts using paper and pencil as well as modern technology, such as a walking counter/meter on a smart phone or smart watch.

All I've ever known of P.E. was that it was the alternative to athletics (read: sports and gymnastics), and that the kids participate in physical activities, but not really learn about their own physical bodies. I'm all for there being an alternative. I participated in athletics throughout all of junior high and high school, but I always hated the team sports (namely, volleyball and basketball for me as a girl). I was fine in track and cross country, and I loved when I finally joined the tennis team, and I'd been bowling since I was a little one, but those were individual, or at most doubles, sports where I wasn't having to coordinate with a team of other players. And some of those athletics teachers can be rough, which was one of the reasons I stopped being in band - for every 10 athletic teachers, there's one band instructor that feels more like a drill sergeant than those 10 athletic instructors combined ever wished they could be.

I just think it would be neat if those kids in P.E. who otherwise probably could care less about sports, and maybe even learning, were somehow primed to be open to the areas of fitness, nutrition, and maybe even physiology. There's a fallacy that the non-smart, non-atheletic kids won't succeed in those areas of study, but I think priming them to at least know about them while they are still in grade school would help open the door to new possibilities for them. It could still be an "easy A" class, but throw some actual EDUCATION into the Physical Education course.

Moebius

Sep. 4th, 2015 12:38 pm
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Even if you don't know a thing about knitting, this wonderful 9min video tutorial on how to knit a moebius cowl is absolutely fascinating to watch for her great description of the moebius WHILE she's knitting along.

PS - Thick yarn like this always looks like some kind of putty string.


Eigenwhat?

Mar. 4th, 2015 08:19 am
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I had dreams about eigenvectors.

Who has dreams about eigenvectors?

This nutcase, apparently.
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In my recent post about PTSD, I mentioned my experience as a bank proof operator. I was re-reading that post and getting nostalgic about those days. I went to search for an image of the Lundy sorting machine I used.

The first image I found is very, very close looking to the machine I used, only with updated computer and software, but the sorting bins and mechanisms for moving the papers around looked pretty much exactly the same.



Really, over time, sorting machines haven't changed all that much other than getting a little smaller, a little IBM blue-er, and a little more modern.

Nowadays, though, you might have noticed that the time it takes to make a deposit at a teller station takes longer, because tellers now do their own scanning and proofing there at the teller station with miniturized scanners and desktop proof software. Since the whole point of proof operation is to scan the check and make sure it is coded for the right amount and the deposit ticket adjusted for any discrepancies, it does make more sense to have the teller in charge of taking and recording that deposit to process the proofing while the customer is still present. The digital age is making the dedicated proof operator positions obsolete. Sorting still occurs *somewhere*, but most documents now get digitally scanned and then properly discarded. You never get the physical check or deposit slip back anymore - only digital scans of the items.

Anyway, what really caught my attention was the article from which the above image came. It goes into grand detail about the level of details appearing in the movie Catch Me If You Can regarding checks and money fraud, including the machinery that they managed to include as props in the movie. It's a really interesting read if you want to learn quite a lot about the history of the check encoding process and money making.
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Introducing the aptly named titanosaur.

I still giggle at the thought that the bones were put there by God to test our resolve.
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I'm learning about accretion disks, because, um, I have no reason. Just because.

Also, I screwed up and set fire to a few of Paco's blocks. He has forgiven me, but I still feel like a heel. No, that's not a euphemism for something else. There is a box of blocks near the fireplace that I thought were for burning. I've only burned about 5 or 6 of them, but I feel pretty horrible now that I know they weren't there for burning. Bugger.

I think fire and I should not be playmates - especially when I'm sick. I'll leave the fire-making to my roommates.
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Mom and I watched a documentary on Einstein's Theory of Relativity which involved some personal history of Einstein, what he went through regarding working on his theory, his ideas about WWII, and his dealings with other physicists and astronomers towards proving his theory. Little Bit walked in and asked what we were watching, and also asked if she knew what it was about. Mom told him she only understood some of it, but that Aunt Nikki understood all of it. I asked Mom which part of the documentary she didn't understand. "Uh, well, this Theory of Relativity thing. It doesn't make any sense to me." ... "Ah, yeah, I can see how that might be throwing you a bit. Think of it as a better way to describe gravity." ... "Then what does that have to do with the solar eclipses that they are having to take pictures of? I mean, I understand they needed it to prove Einstein right or wrong, but I don't understand why." ... "That was just the only way they could prove it back then." ... "Ah, okay."

This is the best path for scientific conversations between my mom and I: mutual agreement that, no matter how much I try to explain, she simply will not understand, so it's best to explain as little as possible else risk talking her ear off and her being no closer to understanding than when I started.
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When I don't have anything serious to think about, my mind wonders into all manners of weird while I'm taking my morning showers.

This morning, I had a mental debate with Dr. Manhattan regarding his statement during the interview about the atoms of a living person being the same as the atoms of a dead person. I debated that while there is no difference between the physical atoms, the delta function (as in the calculus-based function of changes over time) would be different given the ordered makeup of the pile of atoms and the electrical impulses in the living human versus the ordered (or non-ordered) makeup of the pile of atoms and non-existent electrical impulses in the non-living human.

Take THAT calculus function, Dr Manhattan!

My showers should not be so mathematical.
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Based on what the experts spout in documentary television shows, every galaxy in the universe is moving away from us, and from each other. If that's the case, then how can some galaxies still manage to collide? I don't know enough about astronomy to work this one out.

Fractals

Mar. 6th, 2013 06:14 am
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I always find it interesting that we are so fascinated with the Mandelbrot Set because of how pretty and intricate it is, yet if you keep zooming in on the edge of a circle, you will find just as much fractal there as well. It's just not as eye-appealing. Poor dull circle - will you ever be as interesting as your lopsided brethren?

Yeah, math humor. Go me.
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I was thinking about traffic. I would say I was bored, but that wasn't the case. I was just awake.

When a two or three lane road is compressed down into a one lane road due to construction or design, the speed of the traffic flow from the cars slows down and creates increased pressure at the "bottleneck."

Bernoulli's principle, on the other hand, shows that when dealing with the dynamics of fluid motion, the flow will speed up and the pressure will decrease, like when dealing with an airfoil, piping, or a water hose (which is simply another form of piping).

What is it about a system comprised of intelligent entities that causes human flow to slow down at a bottleneck instead of speed up?
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My brain was stuck twiddling around with the Monty Hall problem again this morning.

I worked out the mental mechanics of it a while back (and I think I wrote it out here, somewhere), but I was still curious as to WHY do people still persist in arguing that there is a 50/50 chance of winning.

Heh. After reading that one section in the wiki file, I think the answer to that question is a matter of simple semantics rather than a question of cognitive psychology. People keep thinking, "the chances of there being a goat or a car behind the door," is the same as saying, "the chances of winning the car by changing your selection." Those are two different problems.

I came across a couple comments by some folks to a YouTube video on Aspergers that I was watching, and it's been making me think quite a lot harder about semantics and how much of a rush figuring out semantics is for me, whereas semantics might have absolutely nothing whatsoever to do with the actual conversation for most other people. Again, most other people are about the human, emotional connection when communicating, rather than the rhetoric, so they don't tend to go into analytical detail (like I tend to do) when it comes to communicating. They take things at some sort of hybrid gist and gestalt value, assign emotional responses, and then go from there without analyzing it too deeply.

The quotes I came across )

The Monty Hall problem is confounding to most people on two levels: probability AND semantics. You have to be able to delve pretty deep into both in order to really wrap your mind around the correct answer, and most people do not tend to delve deep into either subject matter, let alone both.
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I needed some good news this morning.

Tesla Museum fund raising hits $1million!
Dr. Evil would be proud.

I'm trying to save for a house, but I still donated to Build a Goddamm Tesla Museum. Have you?

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