%0 Video %T Philosophy 167: Class 10 - Part 11 - Converging Theory-Mediated Measurements of Surface Gravity: Using Cycloidal and Conical Pendulums to Confirm Different Principles of Motion. %A Smith, George E. (George Edwin), 1938- %D 2015-09-03T17:19:57.652Z %8 2015-09-03 %I Tufts Archival Research Center %R http://localhost/files/jh344473g %X Synopsis: Describes Huygen using cycloidal and conical pendulums to confirm different principles of motion.; Opening line: "All right. I said earlier that Huygens had measured, in 1659, measured surface gravity with a constant height conical pendulum."; Duration: 12:04 minutes.; Segment: Class 10, Part 11. %G eng %[ 1972-12-31 %9 Video %~ Tufts Digital Library %W Institution