Amazon Deal of the Day: 70% Off Canon PIXMA MG6220 Wireless Inkjet Photo All-In-One Printer – $59.99 + Free Shipping

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For today’s edition of Deal of the Day, Amazon has the Canon PIXMA MG6220 Wireless Inkjet Photo All-In-One Printer for just $59.99 plus free shipping. That’s 70% off the printer’s usual retail price of $199.99. The beautiful PIXMA MG6220 Wireless Inkjet Photo All-In-One delivers superior quality, versatility, and ease of use. Built-in Wi-Fi technology allows […]

The Merging of Two Supermassive Black Holes [Video]

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Supermassive black hole + supermassive black hole = super-SUPERmassive black hole! Supercomputer models of merging black holes reveal properties that are crucial to understanding future detections of gravitational waves. This movie follows two orbiting black holes and their accretion disk during their final three orbits and ultimate merger. Redder colors correspond to higher gas densities. […]