Melting is a process that causes a substance to change from a solid to a liquid. Melting occurs when the molecules of a solid speed up enough that the motion overcomes the attractions so that the molecules can move past each other as a liquid.
The Purpose of Work. âWe work to have leisure, on which happiness depends.â So said Aristotle, quoted by Notre Dame philosopher Gary Gutting to explain âWhat Work Is Forâ in a recent article for The New York Times. Luther countered this medieval view of workâwhich is coming back into style in our consumerist cultureâwith his doctrine of vocation.
The scientific definition is defines work as a scalar. The definition of Work should recognize the Quaternion nature of Work, W = Wscalar + Wvector =[f,F] [d, D] = [fd -F.D, fD + Fd + FxD] . The definition of work is deceptively simple, but for accuracy it is perhaps better to approach this in stages. It is often stated too simply, i.e. Work equals force times distance.. It is necessary to clarify the vector nature in order to get the scientific definition.