Importantly, Barlow failed to recognize the dependence of the current strength on electric tension (that is, voltage) so neglected the possibility of solutions such as a high-intensity battery or step-up voltage converters to allow long-distance telegraphy.
Importantly, Barlow did not investigate the dependence of the current strength on electric tension (that is, voltage). He endeavoured to keep this constant, so neglected the possibility of solutions such as a high-intensity battery or step-up voltage converters to allow long-distance telegraphy.