Center for Appropriate Transport youth in need of a hands-on education. CAT is an alternative education program registered with the Oregon Department of Education and as such is one of the few publicly funded bicycle schools in the United States. Center for Appropriate Transport The Center for Appropriate Transport (CAT) is a non-profit community center dedicated to bicycles and alternative transport located in Eugene, Oregon, United States. CAT holds publicly funded educational workshops for teaching youth from ages 12 to 21. Within the facility there is a public bicycle repair workspace and a bike machine-shop for the design and manufacture of special-purpose bikes, particularly
Mode of a linear field Mode of a linear field In physics, a vector field is linear if it is a solution of a set of linear equations "E". For instance, in physics, the electromagnetic field in vacuum, defined in the usual (3 + 1)-dimensional space "S", obeys Maxwell's equations. A linear combination of electromagnetic fields, with constant, real coefficients, is a new field which obeys Maxwell's equations. The solutions of the linear equations are represented in a real vector space "M". A radius of "M", which represents proportional solutions, is called a "mode". A norm may be defined. For instance, in electromagnetism, it is