20 setembro 2017

The distribution of Armenians (in red) and Greeks (in purple),...



The distribution of Armenians (in red) and Greeks (in purple), in 1900 CE and in 2000 CE. The mass movement of populations were the result of the Greek Genocide and Armenian Genocide; both began during World War I under the Ottoman Empire, and continued into the early 1920s under the new state of Turkey.

Interesting note: in 1900, Greek and Armenian populations bordered each other in two places, in eastern Turkey and around Constantinople

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Suomi NPP Satellite Captures Thermal Image of Hurricane Maria


The VIIRS instrument on NASA-NOAA’s Suomi NPP satellite captured a thermal image of Hurricane Maria on Sept. 20 at 2:12 a.m. EDT. The image showed very cold cloud top temperatures in the powerful thunderstorms in Maria’s eyewall. Maria’s eye was just east of the American Virgin Islands, and its northwestern quadrant stretched over Puerto Rico.

from NASA http://ift.tt/2xn5mNK
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A Fashion Show For Swim Caps!

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The Big Corona


Most photographs don't adequately portray the magnificence of the Sun's corona. Seeing the corona first-hand during a total solar eclipse is unparalleled. The human eye can adapt to see coronal features and extent that average cameras usually cannot. Welcome, however, to the digital age. The featured picture is a combination of forty exposures from one thousandth of a second to two seconds that, together, were digitally combined and processed to highlight faint features of the total solar eclipse that occurred in August of 2017. Clearly visible are intricate layers and glowing caustics of an ever changing mixture of hot gas and magnetic fields in the Sun's corona. Looping prominences appear bright pink just past the Sun's limb. Faint details on the night side of the New Moon can even be made out, illuminated by sunlight reflected from the dayside of the Full Earth.

from NASA http://ift.tt/2hbq0KU
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VISIT –> http://ift.tt/2j1L7vw...



VISIT –> http://ift.tt/2j1L7vw to learn all about the life and work of psychology legend B.F. Skinner.

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