Talk:Thorium

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This article appeared on Wikipedia's Main Page as Today's featured article on March 5, 2018.

Article milestones
Date	Process	Result
September 7, 2014	Good article nominee	Listed
September 29, 2014	Good topic candidate	Promoted
May 12, 2017	Peer review	Reviewed
January 19, 2018	Featured article candidate	Promoted
February 15, 2024	Good topic removal candidate	Demoted
A fact from this article appeared on Wikipedia's Main Page in the "Did you know?" column on September 11, 2014. The text of the entry was: Did you know ... that the radioactive decay of thorium* produces a significant amount of the Earth's internal heat?*
Current status: Featured article

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Use in cavity magnetrons filaments (used in microwave ovens)[edit]

The page on cavity magnetrons states Thorium is used in the filaments of the magnetron. It would be interesting to find references to support this and to mention it under the applications for / uses of Thorium.

Thoria used in Vacuum Tubes[edit]

In the early 1920, the use of Thoria was discovered to improve Vacuum Tubes, see the following https://archive.org/details/70yearsofradiotu00stok/mode/2up?q=thoria 2600:8803:7D00:5B10:312D:2FED:8211:778B (talk) 00:47, 14 July 2024 (UTC)[reply]

Thanks, I included that ref and used it to correct some erroneous content. Johnjbarton (talk) 02:35, 14 July 2024 (UTC)[reply]