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  • Light Pollution from Digital/Video Billboards
    problem with digital video billboards is that they take this to a new level They are usually very bright the ones along the BQE cast shadows that can be seen in spite of the roadway lighting And they are video moving images It s pretty much hard wired into the human brain to notice things that are moving Something moving beside the road is normally something you want to look at If that was a person or vehicle moving in your peripheral vision you would definitely want to look I stumbled across a well done video on YouTube about digital billboards in San Antonio 2 Some of the issues they raise are specific to them such as the effect on historic scenary important for tourism but the underlying issue what an eyesore is the same Additionally the bigger issue of safety due to brightness and distraction are the same everywhere If digital video billboards are to be allowed they need to be of limited brightness and restricted video rate Brightness should be comparable to what you get from traditional lighting Actually I would argue that traditional lighting is already too bright in most cases Throw in that the video billboards

    Original URL path: http://www.astrofoto.org/print/1213 (2016-02-13)
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  • Elements of Humanity
    Humanity 2 web site in Physics Today 3 although I subscribe to MAKE Magazine 4 who made the site Elements of Humanity 2 is a set of interviews with 12 scientist and engineers who talk about what inspired them to choose their careers Some of them are fascinating for teachers some more so for students but all of them are well done and help break the stereotype of scientists in

    Original URL path: http://www.astrofoto.org/print/1212 (2016-02-13)
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