Tag: Science

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Scientists have built a computer model of the Neanderthal vocal tract based on fossils, and have simulated the kinds of sounds they could have produced. Ever since I read Robert J. Sawyer’s Neanderthal Parallax novels, I’ve been fascinated by the idea that there were two distinct human species, living side by side, for perhaps thousands of years. What happened to them? Did our ancestors kill them off, or interbreed with them? Did they fail to adapt to a changing climate? (via Slashdot)

On a related note, it seems that Expelled, the anti-science propaganda film that actually invokes Godwin’s Law by claiming that “believing” evolution leads to Nazis, opens this weekend. I’m curious to see how badly they misrepresent things (it’s always best to look for yourself, instead of just taking other people at their word—that’s the whole idea behind science, after all), but I can’t bring myself to support them by actually giving them money. Meanwhile, Expelled Exposed is interesting reading.

In software, dria.org explains why the AwesomeBar is awesome. That’s the nickname given to the new address bar in Firefox 3, which lets you search your browser history as you type. It’s the reason I never went back to Firefox 2 after trying out one of the later FX3 betas, and why I’ve installed Fx3b5 on two more machines. The Opera 9.5 previews have a similar feature, but Firefox’s implementation is better visually. It’s easier to spot the page you want, and over time, it learns which pages you visit more often. It’s so much faster to type a word or two than to hunt through the bookmarks menu. (via Asa Dotzler)

IEEE has an article on how copyright law applies to websites, What Can You (Legally) Take From the Web?

Finally, ***Dave relates an incredibly cool story of going to see Avenue Q and what happened after the show. I had no idea that (at least in New York), the “Give Me Your Money” segment was actually collecting for a charity.

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There are certain ideas that I find completely acceptable in the context of science-fiction, but completely looney in the context of actual science.

Take, for instance, Erich von Däniken’s premise that gods were really ancient alien astronauts. It’s an interesting idea, but it’s way out there in terms of science. It assumes that (a) myths are historically accurate, (b) aliens exist, and (c) low-tech humans couldn’t possibly have created things like Stonehenge, pyramids, giant stone heads, etc. Not to say it’s not possible that aliens visited the planet in the distant past—just that comparative mythology and architecture aren’t exactly compelling evidence.

On the other hand, I have no problem with the concept in science-fiction. It’s the basic premise of Stargate. The movie and early seasons of SG-1 focused on Egyptian mythology and technology, and in subsequent seasons of the show, just about every ancient legend has turned out to have an alien race behind it. It also figures into the backstory of Babylon 5, with the Vorlons having visited nearly every known race in ancient times, insinuating themselves into local religions and engineering telepaths over the course of centuries.

(via Sclerotic Rings and *** Dave)

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I was thinking about a discussion on last month’s Flash #226 and got to thinking about the way religion figures into mainstream comic books. Not the way religious characters are portrayed, but the way the fictional world works. I’m not familiar enough with Marvel (though I can make some guesses based on the presence of Thor), but DC seems to have an “anything goes” cosmology: current scientific theory coexists with the Christian God, Heaven and Hell, with gods and other supernatural beings from various mythologies—some of them made up, like the Lords of Order and Chaos—occupying their own corners of the universe.

That’s probably what you want for a long-term, open-ended shared universe, because it gives you the most opportunities for stories. Want to write about an alien race that lived billions of years ago, or evolved from cats? Check. Have a fallen angel join the Justice League? Check. Tie Wonder Woman’s origin directly to the Greek gods? Check. Use made-up alien gods to explain the Greco-Roman split? Check. Power up half your villains and a handful of heroes as they sell their souls to a devil? Check. Pit the spirit of God’s wrath against a 50,000-year-old immortal ex-caveman? Check. Send some characters to Heaven or Hell, but have others destined to be reincarnated over and over again? Check. Observe the hand of God at the moment of the big bang? Check.

There are a couple of limits. DC seems to avoid ascribing a particular religion or denomination to any of their A-list characters, probably so that readers can just assume it’s their own (kind of like setting a story in “Anytown, USA”). And they avoid direct portrayals of God or Jesus, probably for the same reason. Continue reading →

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From the Astronomy Picture of the Day, it’s the remnants of a two-billion-year-old nuclear reactor discovered in 1972 in a mine in Oklo, Gabon.

Apparently in the old days there was enough uranium-235 in the Earth’s crust that, under the right conditions, nuclear fission could occur naturally. Over time the fuel was used up, and now uranium deposits are mostly 238U, so we don’t need to worry about any new nuclear reactors popping up without our help.

What’s really odd is that this reactor produced plutonium naturally. There’s still some there. Most periodic tables I’ve seen label plutonium as a synthetic element, so the idea of natural plutonium takes some getting used to.

Kind of like the idea of a natural nuclear reactor.