A fact from Scanning Kelvin probe appeared on Wikipedia's Main Page in the Did you know column on 20 June 2019 (check views). The text of the entry was as follows:
Did you know... that Scanning Kelvin Probe, a technique based on Lord Kelvin's work, has been used to investigate fingerprints and meteorites?
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Latest comment: 4 years ago2 comments1 person in discussion
What does "x,y plane" in the lead signify? No coordinate system has been introduced. Is it technical lingo for horizontal plane?--Nø (talk) 06:51, 20 June 2019 (UTC)Reply
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