DDF published in Science July 24, 2018 The Physics of Caramel: How To Make a Caramelized Sugar Cube Source
DDF published in Science July 10, 2018 Spacetime Intervals: Not EVERYTHING is Relative | Special Relativity Ch. 7 Source
DDF published in Science June 12, 2018 Relativistic Addition of Velocity | Special Relativity Ch. 6 Source
DDF published in Science May 29, 2018 Length Contraction and Time Dilation | Special Relativity Ch. 5 Source