"It is argued that immense physical resources - for nonlocal communication, espionage, and exponentially-fast computation - are hidden from us by quantum noise, and that this noise is not fundamental but merely a property of an equilibrium state in which the universe happens to be at the present time. It is suggested that 'non-quantum' or nonequilibrium matter might exist today in the form of relic particles from the early universe. We describe how such matter could be detected and put to practical use. Nonequilibrium matter could be used to send instantaneous signals, to violate the uncertainty principle, to distinguish non-orthogonal quantum states without disturbing them, to eavesdrop on quantum key distribution, and to outpace quantum computation (solving NP-complete problems in polynomial time)."
Simple DirectMedia Layer is a cross-platform multimedia library designed to provide low level access to audio, keyboard, mouse, joystick, 3D hardware via OpenGL, and 2D video framebuffer. It is used by MPEG playback software, emulators, and many popular games, including the award winning Linux port of "Civilization: Call To Power."
Simple DirectMedia Layer supports Linux, Windows, BeOS, MacOS Classic, MacOS X, FreeBSD, OpenBSD, BSD/OS, Solaris, IRIX, and QNX. There is also code, but no official support, for Windows CE, AmigaOS, Dreamcast, Atari, NetBSD, AIX, OSF/Tru64, RISC OS, and SymbianOS.
SDL is written in C, but works with C++ natively, and has bindings to several other languages, including Ada, Eiffel, Java, Lua, ML, Perl, PHP, Pike, Python, and Ruby.
|All too frequently do we fail to recognise ice as a mineral because it does not behave as we believe conventional rocks and minerals should. We are brought up from an early age with an almost magical awe of this substance, which forms sparkly icicles and glittering snowflakes, and is great fun to slide on. Yet water ice is among the most important rock forming minerals in the solar system. Its behaviour as a crystalline solid and as polycrystalline aggregates (i.e., rocks) are indistinguishable from the materials which we, as geologists, are familiar with; it is simply the case that, on Earth, it exists closer to its melting point than, for example, silicates. In the frigid outer solar system, however, ice finds its true home as a substance from which mountains and canyons are built and, perhaps, from which dunes, beaches, and deltas are constructed (e.g., Whalley, 1985).|
By direct analogy with terrestrial igneous processes we would therefore refer to a melt of the native rocks as a magma. On icy satellites this magma will consist mainly of water, with admixtures of ammonia. Like terrestrial vents these fluids will construct volcanic edifices such as shields and domes, complete with flow fields, and also form intrusive bodies such as sills and dykes. The accepted term for these fluids is cryomagma and the eruptive process, cryovolcanism.
... What about solids? Can they "flow" without friction? Last year Moses Chan (Penn State) announced the results of an experiment in which solid helium-4 was revolved like a merry-go-round. It appeared that when the bulk was revolved at least part of the solid remained stationary. In effect part of the solid was passing through the rest of the solid without friction...
The latest DNRC newsletter has a bit on sensory wierdness:
"Alert readers have noticed that Dilbert looks different lately, almost as if someone else is drawing it. Well, it's still me, but here's what's happening: I lost the use of my right hand for drawing, thanks to overuse. Technically, it's called a focal dystonia. It's essentially a brain-mapping problem caused by overusing the hand. The hand is structurally healthy and perfectly fine for every possible use EXCEPT drawing. It's very specific. My brain essentially removed from me the ability to do the thing that was hurting it.
One way I can confirm that it's a brain issue is that when I try to draw with my LEFT hand, my RIGHT hand spasms immediately. Some part of my brain doesn't want me drawing because that's what caused all the discomfort.
For a few weeks I worked left-handed. I'm not quite ambidextrous, but if I work slowly, it looks about the same. Some of the lefty ones have a "L.H." on them to tip you off.
Left-hand drawing was too slow, so I looked for, and found, a technical solution. Wacom has a product that allows you to draw directly onto a special flat computer screen that tilts and turns just like paper on a drawing board. It's called the Cintiq 21UX, and I've been using it for the past several weeks, with much success. It will take a while for my characters to look the same as old, but I'm closing in on it.
The reason I can draw on the computer, but not on paper, is because now I work at a different scale (larger), and the feel of the stylus on the screen is so different from pen-on-paper that my brain doesn't think I'm drawing, so it doesn't trigger the hand spasms.
Brains are funny."
Some things I thought of that others thought of first and have done properly:
This lady does "paintings" in polarization of cellulose. (Yet another use for a laser etcher: draw the stuff in Adobe Illustrator and cut the cellulose with the etcher.)
I wrote a note on making a polarimeter out of blue sky and water, and also thought of a polarization clock to hang in a north/south-facing window. Here's a combination of both ideas.
The chemistry of the new Zubbles
(There's a big discussion about all this here.)