except where they appear in terms multiplied by g, the acceleration due to gravity. The essence of the Boussinesq approximation is that the difference in inertia is negligible but gravity is sufficiently strong to make the specific weight appreciably different between the two fluids. Sound waves are impossible/neglected when the Boussinesq approximation is used since sound waves move thru density variations. 8. Three laws of thermodynamics? First Law of Thermodynamics The first law of thermodynamics is often called the Law of Conservation of Energy. This law suggests that energy can be transferred from one system to another in many forms. However, it can not be created nor destroyed. Thus, the total amount of energy available in the Universe is constant. Einstein's famous equation (written below) describes the relationship between energy and matter: E = MC 2 In the equation above, energy (E) is equal to matter (M) times the square of a constant (C).
g. thunder-storms, squall-lines, meso-scale convective systems) with high reliability, thus this model is run on a 2.5 km horizontal resolution over the Carpathian-basin. The ALADIN and AROME models provide the expected values of meteorological parameters (pressure, wind, temperature, humidity and precipitation) in the future on a three dimensional grid. The forecast methodology is primarily based on hydrodynamics (or atmospheric dynamics), thermodynamics, radiation theory and cloud-physics . UKMO It is a grid-point model with the ability to run with a rotated pole and variable horizontal grid. A number of sub-grid scale processes are represented, including convection, boundary layer turbulence, radiation, cloud and microphysics. It can be run as a global model, or a limited area model and can also be coupled to land surface, ocean models, wave models, chemistry and Earth system components. Kasutatud allikad http://www
worldview has become a monstrous destroyer of what is loving and life-affirming in the human soul." WHAT EDUCATION MUST BE FOR Measured against the agenda of human survival, how might we rethink education? Let me suggest six principles. First, all education is environmental education. By what is included or excluded we teach students that they are part of or apart from the natural world. To teach economics, for example, without reference to the laws of thermodynamics or those of ecology is to teach a fundamentally important ecological lesson: that physics and ecology have nothing to do with the economy. That just happens to be dead wrong. The same is true throughout all of the curriculum. A second principle comes from the Greek concept of paideia. The goal of education is not mastery of subject matter, but of one's person. Subject matter is simply the tool. Much as one would use a
In the studies and science he reviewed, what struck him most was not evidence that contradicted his conclusions, but rather the near-complete omission of heat as a factor in fat- loss. The common equation in the literature was simple: weight loss or gain = calories-in calories-out. Wt = kcal in kcal out. This wasn't the problem. The problem was that every table for calories-out (caloric expenditure) immediately xated on activity level. Thermodynamics--thermodynamics--had somehow been robbed of heat. In Ray's world of space shuttles and atmospheric reentry, heat was king. The laws of thermodynamics were being cited by people who didn't understand them. Take the rst law as an example. In simple terms: Energy can neither be created nor destroyed. It can only change forms. The misquoters were limiting the ways ingested calories could change form. They treated exercise and storage as the only two options. In fact, the human body is an open
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