Journal of the Franklin Institute, Volume 247

activities addition amplifier application Arts atomic Board chapters chemical circuit color Committee Company complete considered curve determined direction discussed effect electrical electronic elements engineering equation equipment example exhibited field Franklin Institute frequency function give given heat illustrations important improved included increase industry interest John known laboratory less light machine Managers manufacture material means measurement mechanical medal meeting metal methods nature noted objects observations obtained operation organization output Philadelphia physical position possible practical present pressure Price principles problems production properties range reading received reference result scientific shows signal solution standard steel stress structure tables temperature tests theory tion tube United various volume York