Quote:"Fuel saving is an increasingly important topic. The price of energy, in particular fossil fuel, is historically high and seems set to increase. Fuel bills - whether for the home or for the car - take up an ever-increasing proportion of people's budgets.
Equally, while there is still some debate about the details, the evidence for man-made climate change effects (global warming) becomes stronger every year. And even if global warming is not a reality, it is absolutely certain that there is only a finite amount of oil in the world - the more we use, the sooner prices will soar as the easily-extracted reserves are used up.
So whether it is for environmental reasons, or just perfectly reasonable self-interest, most people want to cut down on their use of oil-based fuel - be it automotive petrol (gasoline) or diesel, or fuel for the home. As a professional automotive engineer, I have put these pages together to give some advice on how to save fuel, and how not to waste your money on products of dubious effectiveness."
In recent years, mathematicians have discovered an almost perfect parallel between the motion of spacecraft through the solar system and the motion of atoms in a chemical reaction--a hidden unity that has led to innovative new ways to design space missions.
The celestial half of this unity arises from the theory of "dynamical systems," which describes how a group of celestial bodies such as the Sun, the Earth and a spacecraft will move under the influence of their mutual gravity. It turns out that the tangle of gravitational forces creates tubular "highways" in the space between the bodies; if the spacecraft enters one of the highways, it will be whisked along without the need to use much propellant of its own.
The atomic half, meanwhile, arises from the theory of "transition states," which describes how atoms are transferred from one molecule to another during the course of a chemical reaction.
Collagen, a naturally occurring protein already famous for its ability to plump up lips and fill in smile lines, may soon be playing a more substantial role in medicine. Materials scientists at Johns Hopkins have discovered an easy way to modify collagen into forms that could block the formation of unwanted scar tissue, control the growth of tiny new blood vessels in tissues destined for implantation, and even lead to better infection-fighting bandages.
Funny thing about hydrogen cars: If we were all driving them now, the President's FreedomCAR initiative would be anteing up its $1.8 billion to invent the gasoline engine. Freeing us from hydrogen would be "the moral equivalent of war," to use the words of a long-past energy-crisis president. Gasoline would be the miracle fuel. It would save money by the Fort Knoxful. It would save energy by the Saudi Arabiaful.
To see why this is so, let's look at the numbers
At least 10 to 30 percent of global warming measured during the past two decades may be due to increased solar output rather than factors such as increased heat-absorbing carbon dioxide gas released by various human activities, two Duke University physicists report.
Inspired by biological systems, scientists have developed miniature robots that can self-assemble using parts that float randomly in their environments. The robots also know when something is amiss and can correct their own mistakes.
Physicists who work with a concept called string theory envision our universe as an eerie place with at least nine spatial dimensions, six of them hidden from us, perhaps curled up in some way so they are undetectable. The big question is why we experience the universe in only three spatial dimensions instead of four, or six, or nine.
New satellite records monitored by a national team of collaborators show a four-year pattern of extremely low summer sea-ice coverage in the Arctic that continued in September 2005, which may be the result of warming temperatures and earlier spring melting.
Since 2002, the satellite data have revealed unusually early springtime melting in areas north of Siberia and Alaska. In 2005, the trend expanded to include the entire Arctic ice pack, said Ted Scambos of CU-Boulder's National Snow and Ice Data Center, which led the study that also involved NASA and the University of Washington.
We think of Nuclear Reactors as being extremely complex and difficult to control devices. It must be remembered that there are over 900 possible nuclear reactors! Of the 900 possiblities, we use primarily 2; Boiling Water Reactors (BWRs) and Pressurized Water Reactors (PWRs), which are examples of "Hetrogenous" reactors; the fuel and moderator/coolant are separate and fixed. The HRE was a scaled up version of Los Alamos National Laboratory's (LANL) LOPO and SUPO Aqueous Homogeneous Reactors built at Oak Ridge National Laboratory (ORNL).
Start of a four-link run on this technology
In addition to the Aircraft Reactor Experiment, the Bulk Shielding Reactor, and the Tower Shielding Facility built as part of its Aircraft Nuclear Project for the Air Force, the Laboratory had three other major reactor designs in progress during the mid-1950s: its own new research reactor with a high neutron flux; a portable package reactor for the Army; and the Aqueous Homogeneous Reactor, which was unique because it combined fuel, moderator, and coolant in a single solution (designed as one of five demonstration reactors under AEC auspices).
Starts half way down
The solution reactor "ARGUS" developed at the RRC is a mini-reactor. At the present time it is used successfully for nuclear physics measurements and inspection. The reactor of the solution type was selected due to its utmost safety ensured by high negative reactivity coefficient and optimum uranium concentration in the solution. These features afford self-regulation mode of the system operation.
The environmentally friendly and economically competitive techniques of radioactive isotope production are developed within the framework of high technology researches at the Kurchatov Institute on the base of the "ARGUS" - solution minireactor
Why does anyone need to Launch an Antenna?
It is often more convenient to use existing trees than to erect supports for wire or beam antennas, especially when these antennas are required for temporary or emergency field use. We set up antennas for disasters and drills, camping and contests, practice and fun. With all the applications for Homeland Security there are many potential uses for rapid deplyment. If you have a need to quickly set up antennas in various field situations, or you have some really nice trees in your backyard, you may have a use for Antenna Line Launching.
key area of study for CRN is the question of how quickly nanofactory technology will develop. To build a nanofactory, you need to start with a working fabricator, a nanoscale device that can combine individual molecules into useful shapes. A fabricator could build a very small nanofactory, which could build another one twice as big, and so on. Within a period of weeks, you have a tabletop model. Products made by a nanofactory will be assembled from nanoblocks, which will be fabricated within the nanofactory. The product that comes out of the nanofactory will be a mostly-solid block or brick that will unfold like a pop-up book or inflate like an air mattress. Computer aided design (CAD) programs will make it possible to create state-of-the-art products simply by specifying a pattern of predesigned nanoblocks. The question of when we will see a flood of MNT products boils down to the question of how quickly the first fabricator can be designed and built.
An article from a site
first brought to my attention by beaglebot
French Cursive is a font that produces an upright cursive writing. A readable and good looking font it is optimized for writing French. It very much reminds me of the style of cursive written by the Sisters (Nuns) when I was in elementary school.
Written in Metafont, its primary purpose is to be used with TeX, but other systems should be able to use it as well. It is currently in progress but reasonably functional.