Discussion: Does anyone else think

"agreed, based on my experience with similar lab equipment to that he used in its manufacture, I cannot believe it masses less than 150 kilos (330 lbs). The absense of any shielding and vacuum chamber may account for the demonstrated lightness (he did carry it), but in the absence of these a high energy electron beam would break up or diffuse to uselessness rather than give the result shown in "The Road Not Taken" ... and the addition of the turntable was just beyond understanding. I am willing to go with the writers only so far in their fictionalization of science, but they seriously need to get a credible physicist on board for continuity. I understood the conceit they were reaching for, it was a high tech crystal ball."