enerCHRON – Energy Chronicle

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About enerCHRON
enerCHRON is an adress database within the energy knowledge web portal ENERPEDIA. Please find detailed information about enerCHRON.

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All enerCHRON contents and structures are copywrited and protected by Germany law and may only be copied, reused, re-published, or used in any other given way, when priorly permitted in written form or when used according to legal regulations.

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1907 Helicopter
1905 Theory of Relativity
1896 Radioactivity
1888 Alternating-current electric motor
1887 Radio waves

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