Tuesday, July 26, 2016

NASA: The Moon crossing the face of the Earth

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From a Million Miles Away, NASA Camera Shows Moon Crossing Face of Earth
August 5, 2015

A NASA camera aboard the Deep Space Climate Observatory (DSCOVR) satellite captured a unique view of the moon as it moved in front of the sunlit side of Earth last month. The series of test images shows the fully illuminated “dark side” of the moon that is never visible from Earth.

The images were captured by NASA’s Earth Polychromatic Imaging Camera (EPIC), a four megapixel CCD camera and telescope on the DSCOVR satellite orbiting 1 million miles from Earth. From its position between the sun and Earth, DSCOVR conducts its primary mission of real-time solar wind monitoring for the National Oceanic and Atmospheric Administration (NOAA).

Read the whole article for more details and an animated image of the Moon making transit across the Earth's face.

h/t to John Kovalic's Twitter Feed for a funny tweet that made me look up this awesome image.

Thursday, July 14, 2016

Retro Tech: The Wire Recorder

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Before tape recorders were invented, there were wire recorders. This is a fascinating video that shows one in action.