Instrumentality of Mankind In the science fiction of Cordwainer Smith, the Instrumentality of Mankind refers both to Smith's personal future history and universe and to the central government of humanity. The Instrumentality of Mankind is also the title of a paperback collection of short stories by Cordwainer Smith published in 1979 (now superseded by the later The Rediscovery of Man, which collects all of Smith's short stories). Origin and history In the history of Cordwainer Smith's "Instrumentality" universe, the Instrumentality originated as the police force of the Jwindz or "perfect ones" on a post-nuclear-holocaust Earth. Characteristics Though the Instrumentality does not directly administer every planet, it claims ultimate guardianship over the destiny of the human race.
Quantum information In physics and computer science, quantum information is information that is held in the state of a quantum system. Quantum information is the basic entity that is studied in the growing field of quantum information theory, and manipulated using the engineering techniques of quantum information processing. Much like classical information can be processed with digital computers, transmitted from place to place, manipulated with algorithms, and analyzed with the mathematics of computer science, so also analogous concepts apply to quantum information. Quantum information Quantum information differs strongly from classical information, epitomized by the bit, in many striking and unfamiliar ways. Among these are the following:
Isolation tank An isolation tank is a lightless, soundproof tank inside which subjects float in salt water at skin temperature. They were first used by John C. Lilly in 1954 to test the effects of sensory deprivation. Hypnagogia "Waking dream" redirects here. It is not to be confused with daydreaming. Hypnagogia is the experience of the transitional state from wakefulness to sleep: the hypnagogic state of consciousness, during the onset of sleep. In opposition, hypnopompia denotes the onset of wakefulness. The related words from the Greek are agōgos "leading", "inducing", pompe "act of sending", and hypnos "sleep". Isolation Tank » Blog Archive » The Floatation Tank Experience About fifteen years ago, when I was living in Madison, Wisconsin, a flotation tank center opened, right in my neighborhood. I had heard of flotation tanks, but had never actually experienced one. So, feeling curious, I walked over to check it out, one spring afternoon. It was a very small place: just a reception area and then a back room with two (or perhaps three) tanks, and a couple of showers.
Extremely low frequency 1982 aerial view of the U.S. Navy Clam Lake, Wisconsin ELF transmitter facility, used to communicate with deeply submerged submarines. Extremely low frequency (ELF) is the ITU designation for electromagnetic radiation (radio waves) with frequencies from 3 to 30 Hz, and corresponding wavelengths from 100,000 to 10,000 kilometers. In atmospheric science, an alternative definition is usually given, from 3 Hz to 3 kHz. In the related magnetosphere science, the lower frequency electromagnetic oscillations (pulsations occurring below ~3 Hz) are considered to lie in the ULF range, which is thus also defined differently from the ITU radio bands. Alternate definitions String theory String theory was first studied in the late 1960s as a theory of the strong nuclear force before being abandoned in favor of the theory of quantum chromodynamics. Subsequently, it was realized that the very properties that made string theory unsuitable as a theory of nuclear physics made it a promising candidate for a quantum theory of gravity. Five consistent versions of string theory were developed until it was realized in the mid-1990s that they were different limits of a conjectured single 11-dimensional theory now known as M-theory. Many theoretical physicists, including Stephen Hawking, Edward Witten and Juan Maldacena, believe that string theory is a step towards the correct fundamental description of nature: it accommodates a consistent combination of quantum field theory and general relativity, agrees with insights in quantum gravity (such as the holographic principle and black hole thermodynamics) and has passed many non-trivial checks of its internal consistency.
What is a floatation tank? - Float Tank » Floatation Tank » Isolation Tanks » Sensory Deprivation Tank What is a floatation tank? 500 kg of Epsom salts are added to 1000 litres of water, creating a 30 cm deep solution, which is heated to 35.5 degrees C (skin temperature). The temperature of the water means that once you are settled in the tank, it is virtually impossible to distinguish between parts of the body that are in contact with the water, and those that aren’t, in effect “fooling” the brain into believing that the person is floating in mid-air. Floatation Research - calm-water Whether you are a professional or semi-professional sportsman, sports coach, therapist, health practitioner or simply one of the millions of us stressed by the pace of modern life, we can point you in the direction of some very informative research carried out by some of the world’s leading medical universities and sporting organisations including Goteborg university in Sweden and Pennsylvania State University in the USA. Worldwide, there are over 1,500 Floatation centres and in Europe alone there are centres in every major town and city in Germany and many centres to serve the small population of Sweden, as well as centres in many other European cities. Since 2003, the Swedish government has actively promoted Floatation. The very latest research, undertaken at Karlstad University concludes that ‘Regular floatation sessions can provide significant relief from chronic stress related ailments, anxiety, depression and fibromyalgia’. Fascinating Float Facts:
First Isolation Tank Trip The first sound I heard when I walked into the waiting room was the soothing sound of pumps grinding away. The room was dimly lit and one sign said "please, your shoes" and another, "Please speak quietly." After they got the tank ready, a woman about my age took me to the isolation tank room and told what to do. She had to open a door and turn off a pump that ran a swimming pool filter that was connected to the tank so I could use the tank. The tank was a large horizontal version, but was not wired for sound, as some tanks are. Instead, they had ear plugs to reduce external sounds.
Electrical grid General layout of electricity networks. Voltages and depictions of electrical lines are typical for Germany and other European systems. An electrical grid (also referred to as an electricity grid or electric grid) is an interconnected network for delivering electricity from suppliers to consumers. It consists of generating stations that produce electrical power, high-voltage transmission lines that carry power from distant sources to demand centers, and distribution lines that connect individual customers.
Standing wave Two opposing waves combine to form a standing wave. For waves of equal amplitude traveling in opposing directions, there is on average no net propagation of energy. Moving medium As an example of the first type, under certain meteorological conditions standing waves form in the atmosphere in the lee of mountain ranges. Such waves are often exploited by glider pilots. Standing waves and hydraulic jumps also form on fast flowing river rapids and tidal currents such as the Saltstraumen maelstrom.