3 ms·
see also https://www.feynmanlectures.caltech.edu/I_22.html#footnote_source_1 https://www.feynmanlectures.caltech.edu/I_22.html#footnote_s...
by 082349872349872 2y ago
see also https://www.feynmanlectures.caltech.edu/I_22.html#footnote_source_1 https://www.feynmanlectures.caltech.edu/I_22.html#footnote_s...