[lemma=experimental] □
[lemma=experimental] □ □
[lemma=experimental] □?
This department embraces instruction in wood and metal work at the vise and lathe , practice in running the steam-engine , and an extensive experimental course , with electric and acoustic apparatus , with special reference to the applica - tion of telegraphy , telephony , and electric light - ingl . All of the software is seamlessly integrated to provide a smooth experimental setup , processing , and verification routine . Indeed , one of Newton 's primary complaints against both the Cartesians and Leibniz seems to be that they mix metaphysical with experimental concerns — that they infuse metaphysical views , which he thinks are always questionable and highly disputable , into their experimental philosophy , thereby preventing the latter from proceeding on a secure empirical footing . Important aspects of the work included theoretical development , experimental setup , data acquisition and processing , and results validation . The experimental setup , photographed at the left below , consists of a bright light source , a baffle with the slit immediately in front of the light , a prism , and a lens , just before the prism , to focus an image of the slit onto the screen , seen at a distance in the photograph .