Discharge tubes for experiments on effects of cathode rays
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Discharge tubes for experiments on effects of cathode rays. Wellcome Collection. Source: Wellcome Collection.
Licence: Attribution 4.0 International (CC BY 4.0)
Credit: Discharge tubes for experiments on effects of cathode rays. Wellcome Collection. Source: Wellcome Collection.