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Comment Re:Hello world, do we see the ISS? (Score 1) 80

The sun is behind Earth. The "dark" side of Earth is lit by moonglow and photographed with a large f-stop. I'm assuming that the light in the center is a reflection from inside the capsule. It may not have been apparent to the photographer, but a camera with wide-open aperture can pick up stuff that the eye can't see.

Comment Re:Writing in clay (Score 1) 40

If you want the epoch of the "Clay Age" I suppose it would be about 2900-3100 BCE, in the Sumerian civilization of Mesopotamia. They started writing in cuneiform script on wet clay tablets that dried and became a hard record.

Interesting. Mythologized an eon later, "Because the messenger's mouth was heavy and he couldn't repeat, the Lord of Kulaba patted some clay and put words on it, like a tablet. Until then, there had been no putting words on clay.

—Enmerkar and the Lord of Aratta (c.1800 BCE)"

Those address the first application of spoken language to writing. Just to confuse matters a bit more, "The first writing can be dated back to the Neolithic era, with clay tablets being used to keep track of livestock and commodities." (per the wiki. I'll have to look more into this, I don't know if I've seen anything about it.) I have read that Egyptian hieroglyphics were originated for accounting. (Allegedly for beer, but I read about this in a "history of beer" article, so YMMV.)

Comment Re:What about the future? (Score 1) 40

I wish we had Feynman's insights around now. Besides the science of the small, here's what he had to say in '04 about what we have come to call AI today:

"Everybody who has analyzed the logical theory of computers has come to
the conclusion that the possibilities of computers are very interesting---if they could be made to be more
complicated by several orders of magnitude. If they had millions of times as many elements, they could make
judgments. They would have time to calculate what is the best way to make the calculation that they are about
to make. They could select the method of analysis which, from their experience, is better than the one that we
would give to them. And in many other ways, they would have new qualitative features"

Comment Writing in clay (Score 2) 40

The gift that keeps on giving. I was idly wondering why we have Bronze age, Iron age, etc., but no Clay age, then realized every age is a Clay age.

Thought a little more and wondered when pottery was first created, and found China was doing it around 18000BC, and we've been labeling the different potteries over time and space. So in a way we do have different "Clay Ages", but it's delineated in the descriptions of the technology and styles of the main product of the clay used by different civilizations.

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