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::I thought he meant the average length an alpha particle travels through a sphere, which would be <math>\frac{4}{3} \pi r^3 \div \pi r^2 = \frac{4}{3} r</math> [[User:Kurzon|Kurzon]] ([[User talk:Kurzon|talk]]) 07:51, 3 September 2024 (UTC)
:::Thomson says explicitly that the formula is for the "mean value of <math>\sqrt{l}</math>". [[User:Johnjbarton|Johnjbarton]] ([[User talk:Johnjbarton|talk]]) 13:29, 3 September 2024 (UTC)
{{ping|Headbomb|Mohammadidea|Mike Peel|Michael C Price}} Perhaps one of you guys can help us? Please refer to the section '''Deflection by the electrons''' of this article and [https://archive.org/details/proceedingsofcam15190810camb/page/464/mode/2up Thomson's 1910 paper on the plum pudding model]. J. J. Thomson sad that the average of <math>\sqrt{L}</math> is equal to <math>\tfrac{4}{5}\sqrt{2R}</math>. He never explained how he arrived at this equation. How might he have come to this? [[User:Kurzon|Kurzon]] ([[User talk:Kurzon|talk]]) 20:19, 20 September 2024 (UTC)
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