Magnetism #2 - with Sir Lawrence Bragg

From a channel Lumen includes in full: This is the Royal Institution's digitised 16mm archive: Bragg lecture series on waves, light, magnetism and properties of matter, plus scientific research films and historical documentaries, all made to teach or to show how phenomena behave. The transcripts consistently show demonstrations and explanations rather than entertainment. The few non-teaching items, such as the personal film of Bragg drawing with his grandson and the raw film trims and equipment setup offcuts, can be excluded by title pattern.