%0 Video %T Philosophy 167: Class 10 - Part 4 - Surface Gravity: Two Theory-Mediated Measurements, Via Conical and Cycloidal Pendulums. %A Smith, George E. (George Edwin), 1938- %D 2015-09-03T17:14:40.674Z %8 2015-09-03 %I Tufts Archival Research Center %R http://localhost/files/8623j902g %X Synopsis: Huygens' attempts at measuring the strength of surface gravity.; Opening line: "As I said, in October of 1659, he got compulsively preoccupied with measuring the strength of surface gravity."; Duration: 7:30 minutes.; Segment: Class 10, Part 4. %G eng %[ 1972-12-31 %9 Video %~ Tufts Digital Library %W Institution