Difference between revisions of "1907"
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==Events== | ==Events== | ||
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| + | * '''Unknown Date''' – [[wikipedia:Lee de Forest|Lee de Forest]] invents the triode thermionic amplifier, which starts the development of electronics as a practical technology. | ||
| − | *''' | + | * '''Unknown Date''' – [[wikipedia:Bertram Boltwood|Bertram Boltwood]] proposes that the amount of lead in uranium and thorium ores might be used to determine the [[Earth]]'s age. |
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| + | {| class="wikitable" style="width:20%" | ||
| + | ! colspan="3" | [[Timeline]] | ||
| + | |- | ||
| + | | <center>[[1906]] || <center>[[1907]] || <center>[[1908]] | ||
| + | |- | ||
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| + | [[category:timeline]] | ||
Latest revision as of 18:46, 21 October 2022
Events
- Unknown Date – Lee de Forest invents the triode thermionic amplifier, which starts the development of electronics as a practical technology.
- Unknown Date – Bertram Boltwood proposes that the amount of lead in uranium and thorium ores might be used to determine the Earth's age.
| Timeline | ||
|---|---|---|
