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AIzaSyB4mHJ5NPEv-XzF7P6NDYXjlkCWaeKw5bc
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29 Mai 1886 Jahr - Eugen Goldstein discovered the proton by using a cathode-ray tube.
Zugefügt zum Band der Zeit:
chem 1
By
Richard Rowland
23 Okt 2018
0
0
253
Datum:
29 Mai 1886 Jahr
Jetzt
~ 139 years ago
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