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...kinds of designs are called [[distributed element filter]]s. Filters made from discrete components are sometimes called [[lumped element model|lumped elem ...element design. Indeed, the design of waveguide filters frequently starts from a lumped element design and then converts the elements of that design into ...

...ic Flight Mechanics and Space Travel: A Primer for Students, Engineers and Scientists |first1=Richard F. |last1=Tinder |publisher=Morgan & Claypool Publishers |y ...arriages. [[Erasmus Darwin]] may have a prior claim as the inventor dating from 1758.<ref>[https://www.jstor.org/pss/532121 Erasmus Darwin's Improved Desig ...