Jim Al-Khalili: The Story of Electricity

00:01 Early history of electricity: Hauksbee, Guericke, Leyden Jar, Franklin.
02:40 Galvani frog vs Volta pile (1st battery). Era of ‘electricians’.
05:20 A flowing stream is used as an analogy for electricity: the word ‘current’ is introduced and lives on until today.
06:55 Al-Khalili: “We finally understand what electricity is.” Do ‘WE’?
10:45 So what is electricity? Flow of ‘charge’. What is charge?
11:50 19th Century people wanted to make money. They didn’t care what electricity is. “What is electricity GOOD FOR? How can I make money off of it?”
15:00 Ediswan eventually becomes General Electric. Neither Edison nor Swan were scientists. Perhaps they weren’t even inventors. Maybe they were just businessmen.
20:20 Was Nikola Tesla a scientist? The War of the Currents.
25:30 In the 1880s people did not understand what electricity was and were afraid of it.
26:35 The mystical ‘force field’. Did the researchers of the 19th Century really understand the mechanism of electricity?
30:50 Hertz proves the existence of Maxwell’s waves.
34:10 Can an electric current pass through vacuum, space, nothing…? Electric Universe falls apart: there is no plasma in space to produce the electric mechanisms these misguided individuals propose.
38:40 Al-Khalili’s conclusions about electricity.
43:55 Summary/Conclusions

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[PasajeroDelToro]

6:16 What is _charge_ ? Gauss had a different view about it.

[rubencruces]

Bien en términos generales el tratamiento de la electricidad, realmente me parece estupido eso del flujo de electrones (hace parecer que es muy fácil que un átomo se desprenda de ellos, de ser así, la composición de los elementos sería muy distinta de la que parece ser), sin embargo, creo que minimizas el trabajo de Tesla, que me parece genial.