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Astronomy Picture of the Day

Posted on March 19th, 2017 at 23:02 by John Sinteur in category: News

[Quote:]

Explanation: When does the line between day and night become vertical? Tomorrow. Tomorrow is an equinox on planet Earth, a time of year when day and night are most nearly equal. At an equinox, the Earth’s terminator — the dividing line between day and night — becomes vertical and connects the north and south poles. The featured time-lapse video demonstrates this by displaying an entire year on planet Earth in twelve seconds. From geosynchronous orbit, the Meteosat satellite recorded these infrared images of the Earth every day at the same local time. The video started at the September 2010 equinox with the terminator line being vertical. As the Earth revolved around the Sun, the terminator was seen to tilt in a way that provides less daily sunlight to the northern hemisphere, causing winter in the north. As the year progressed, the March 2011 equinox arrived halfway through the video, followed by the terminator tilting the other way, causing winter in the southern hemisphere — and summer in the north. The captured year ends again with the September equinox, concluding another of billions of trips the Earth has taken — and will take — around the Sun.


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This Article Won’t Change Your Mind

Posted on March 19th, 2017 at 13:16 by John Sinteur in category: News

[Quote:]

In one particularly potent example of party trumping fact, when shown photos of Trump’s inauguration and Barack Obama’s side by side, in which Obama clearly had a bigger crowd, some Trump supporters identified the bigger crowd as Trump’s. When researchers explicitly told subjects which photo was Trump’s and which was Obama’s, a smaller portion of Trump supporters falsely said Trump’s photo had more people in it.

While this may appear to be a remarkable feat of self-deception, Dan Kahan thinks it’s likely something else. It’s not that they really believed there were more people at Trump’s inauguration, but saying so was a way of showing support for Trump. “People knew what was being done here,” says Kahan, a professor of law and psychology at Yale University. “They knew that someone was just trying to show up Trump or trying to denigrate their identity.” The question behind the question was, “Whose team are you on?”

In these charged situations, people often don’t engage with information as information but as a marker of identity. Information becomes tribal.


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  1. Meanwhile we can just celebrate the ruthless mockery of the internet:
    https://www.youtube.com/watch?v=dReOdQmt-Qk

RIP Chuck Berry

Posted on March 19th, 2017 at 0:05 by John Sinteur in category: News


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Comments:

  1. Very sad.

  2. James Cotton passed today as well. RIP James. Say hi to Chuck, and rock them up in the angel band!