Definition:Electron/Historical Note/Mistake

Source Work

1958: C.A. Coulson: Electricity (5th ed.):

Chapter $\text {I}$: Preliminary Survey

$\S 1$. Electrostatics

Mistake

The smallest electric charge which it is possible to obtain is that of the ordinary electron, discovered and measured for the first time by J.J. Thomson in $1897$.

Correction

Technically speaking, J.J. Thomson did not measure the electric charge on the electron.

Instead he measured the Electron Charge to Mass Ratio.

The actual electric charge on the electron was measured by Robert Andrews Millikan and Harvey Fletcher in $1909$.

Sources

• 1958: C.A. Coulson: Electricity (5th ed.) ... (previous) ... (next): Chapter $\text {I}$: Preliminary Survey: $\S 1$. Electrostatics