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Great online learning resources about physics, chemistry, math, biology, cosmology and everything else

Great online learning resources about physics, chemistry, math, biology, cosmology and everything else

TheraminTrees https://m.youtube.com/channel/UCJ-vHE5CrGaL_ITEg-n3OeA 
http://www.gapminder.org/videos/ 
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Ignore X-Frame-Options Add-on for Firefox

This small Firefox add-on allows all sites to be loaded in iframes, despite X-Frame-Options header settings. See https://addons.mozilla.org/en-US/firefox/addon/ignore-x-frame-options/ 

 
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Simple Excel sprintf visual basic (vba) macro

Simple Excel sprintf visual basic (vba) macro.
Example:  “=printf(“Some text '%s', more text: '%s'”, A1, A2)”

Public Function Printf(mask As String, ParamArray tokens()) As String
    Dim i As Long

     For i = 0 To UBound(tokens)
          mask = Replace$(mask, “%s”, tokens(i), , 1)
     Next

     Printf = mask

End Function
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