Interesting things I've bookmarked

The Turing Tumble

“Players add logic to the game board by placing six different types of parts onto the board. The ‘Bit’ is a particularly important one. Each time a ball runs over it, it flips to point the opposite direction. Pointing to the left is like a ‘0’, and pointing to the right is like a ‘1.’ Gear bits are the most interesting part, though. Gear bits are just like bits, except that they can be connected to one another so that when one is flipped, it flips the connected gear bits, too. It’s these parts that make the computer Turing-complete,” said Boswell.

William Gibson’s Never-Filmed 'Alien III' Script: A History

This is the alternate universe where legendary science-fiction writer William Gibson’s Alien III (that’s “III,” not “3”) screenplay was realized. It is, perhaps, a better world than ours. There would have been bold, weird, new ideas that pushed the series forward; ones that rethought what the aliens could be metaphors for — nuclear weapons, genetic intellectual property held by shadowy corporations, pandemics. Geeks would have gotten the thrill of seeing one of the all-time-great sci-fi concepts interpreted by one of the genre’s greatest scribes. And yet, not only was the script never produced, it’s largely been forgotten.

Glacier Change and Sea Level Rise

Earth scientist Alex Gardner reveals a world of rapid change as seen through the eyes of a NASA glaciologist. Glaciers and ice sheets hold massive amounts of freshwater locked up as ice. These stores of freshwater feed water supplies that support millions of people around the world, raise global sea levels, and can even change the rate of Earth’s rotation. It is now nearly certain that as Earth’s atmosphere and oceans warm over the coming centuries, glaciers and ice sheets will continue to retreat and sea levels will continue to rise. The big question now is at what rate and by how much?