enter image description here
I have never noticed these on any boeing planes before, so why are these on airbus a320 series and not on the boeing 737 and also what are they for?

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    $\begingroup$ They are static dischargers. See aviation.stackexchange.com/questions/2720/… $\endgroup$ – aeroalias Sep 16 '15 at 0:41
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    $\begingroup$ This meta question explains how to upload screenshots, it should help you $\endgroup$ – Pondlife Sep 16 '15 at 1:18
  • $\begingroup$ I think the more interesting thing you got a good picture of in that shot is the nice yellow anchor point for use in over-wing evacuations (see here) $\endgroup$ – voretaq7 Sep 16 '15 at 1:57

It is difficult to tell by the picture, but they look like static wicks. See this question.

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  • $\begingroup$ Those are static wicks to dissipate electrical charge which can build up doe to atmospheric friction on he airframe. $\endgroup$ – Carlo Felicione Jul 5 '16 at 16:32

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