Category - old
The english phrase rule of thumb refers to a principle with broad application that is not intended to be strictly accurate or reliable for every situation. It refers to an easily learned and easily applied procedure or standard, based on practical experience rather than theory. This usage of the phrase can be traced back to the seventeenth century and has been associated with various trades where quantities were measured by comparison to the width or length of a thumb. This usage of the phrase can be traced back to the seventeenth century and has been associated with various trades where quantities were measured by comparison to the width or length of a thumb. The empirical rule (doubling of the reaction rate upon every 10 increase in temperature) is discussed on the basis of the arrhenius equation and experimental data. A graph is plotted that shows the applicability limits of the empirical rule in terms of activation energies and temperatures. The historical origin of the rule mentioned is briefly discussed. Whats the origin of the phrase rule of thumb? In the popular imagination, in england at least, the rule of thumb has been said to derive from the belief that english law allowed a man to beat his wife with a stick so long as it is was no thicker than his thumb. The common belief is that the rule of thumb origin comes from an english law that allowed a man to beat his wife with a stick as long as the stick was no more wide than this thumb. Its said that judge sir francis buller made the legal ruling in 1782, which was shortly after satirized by a political cartoonist who captioned his drawing with thumbsticks -- appropriate for wife beating. old rule of thumb 3 we should require enough off-street parking for every use. As donald shoup has shown, parking requirements spelled out in zoning codesoften based on formidably inaccurate estimates prepared by the ite (institute of traffic engineers) lead to a situation where every businesss parking lot is sized for the peak hour of the peak day of the year (holiday shopping.). Replaced old rule-of-thumb methods of how to do work with scientifically-based work methods to eliminate soldiering where employees deliberately worked at a pace slower than their capabilities principles of management develop a science of management select workers scientifically create operation between management and labour result of f w taylor concepts - determine the. for more than 300 years rule of thumb has meant what most people think it means any rough-and-ready method of estimating. Its believed to have originated with woodworkers, who made measurements with their thumbs. For more than 20 years, however, some feminists have maintained that rule of thumb has the darker meaning alluded to above. the origin a skot was an old icelandic and old norse word for tax. The word found its way to the english language as scot, and came to mean something was exempt from tax. Investment rule of thumb mirror your age the investment rule of thumb in which you mirror your age with your asset allocation (7030 at age 30, 6040 stocks at age 40, 5050 at age 50, etc. ) has become so widely accepted that many large investment companies have produced target date mutual funds that coincide with multiple retirement dates.