Showing posts from December 2, 2018

Astronomy Picture of the Day: Spiraling Supermassive Black Holes

Spiraling Supermassive Black Holes
Do black holes glow when they collide? When merging, co-orbiting black holes are sure to emit a burst of unusual gravitational radiation, but will they emit light, well before that, if they are surrounded by gas? To help find out, astrophysicists created a sophisticated computer simulation. The simulation and featured resulting video accurately depicts two spiraling supermassive black holes, including the effects of Einstein's general relativity on the surrounding gas and light. The video first shows the system from the top, and later from the side where unusual gravitational lens distortions are more prominent. Numerical results indicate that gravitational and magnetic forces should energize the gas to emit high-energy light from the ultraviolet to the X-ray. The emission of such light may enable humanity to detect and study supermassive black hole pairs well before they spiral together.

December 03, 2018
via NASA����…

The best DIY kits to give as gifts

Gift Guides Or keep for yourself. There's nothing a tinkerer or builder likes more than working with his or her hands. These gifts will let DIYers do just that. via Popular Science ""

Daily Deal - Angels of Death, 50% Off

Today's Deal: Save 50% on Angels of Death!*

Look for the deals each day on the front page of Steam. Or follow us on twitter or Facebook for instant notifications wherever you are!

*Offer ends Tuesday at 10AM Pacific Time
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The coolest cars—and trucks—from the 2018 LA auto show

Cars A new Jeep pickup, a redesigned Porsche, and more showed up in LA. See the rides before you get to ride in them. via Popular Science ""

Simplify your life by creating routines for Alexa, Siri, and Google Assistant

DIY How to build shortcuts for your digital assistant. Digital assistants like Alexa, Siri, and Google Assistant can easily do individual tasks. But routines let them perform multiple actions in response to a single… via Popular Science ""