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QuinnFlint Pop quiz, hotshot. 03-17-2013, 07:19 PM
BobH You got me. Plating from the... 03-17-2013, 07:56 PM
ace Hey, that's the blade on that... 03-17-2013, 08:04 PM
regularjoe I think it's iron oxide. :p 03-17-2013, 09:04 PM
mainaman Those are definitely ... 03-17-2013, 09:16 PM
Johnus Edge of a 1938 Puma that I... 03-17-2013, 10:25 PM
nun2sharp Most typically old Sheffield... 03-17-2013, 11:25 PM
HNSB What magnification is the... 03-18-2013, 01:04 AM
Geezer That is a surface I have... 03-18-2013, 08:22 PM
QuinnFlint Very interesting, and thanks... 03-18-2013, 09:09 PM
Geezer Cell rot would be another... 03-18-2013, 11:39 PM
  1. 03-17-2013, 07:19 PM #1
    QuinnFlint is offline
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    Default Pop quiz, hotshot.

    Yes, that's a quote from the mid-90's blockbuster Speed. And I remember when you could rent it from Blockbuster. So you've figured out that I'm a man of a certain age. But what do you know about this random picture of corroded metal under magnification? What kind of metal is it? How was it made? How old/new is it? Hint: the second picture shows the edge.Attachment 124470Name: photo 3.jpg Views: 302 Size: 51.9 KB
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