This Is What Happens When Two Black Holes Collide.

This Is What Happens When Two Black Holes Collide.

This is what happens when Two Black Holes Collide.

This is the animation of the final stages of a merger between two black holes. What is particularly interesting about this animation is that it highlights a phenomenon known as Gravitational Lensing.

What is Gravitational Lensing?

Mass bends Light. What? 

Yeah, mass can bend Light. The gravitational field of a really massive object is super strong. And this causes light rays passing close to that object to be bent and refocused somewhere else.

image

The more massive the object, the stronger its gravitational field and hence the greater the bending of light rays - just like using denser materials to make optical lenses results in a greater amount of refraction.

Here’s an animation showing a black hole going past a background galaxy.

image

This effect is one of the predictions of Einstein’s Theory of General Relativity 

PC: cfhtlens, Urbane Legend

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Global Temperatures Are Running Far Above Last Year’s Record-setting Level, All But Guaranteeing That

Global temperatures are running far above last year’s record-setting level, all but guaranteeing that 2015 will be the hottest year in the historical record — and undermining political claims that global warming had somehow stopped.

The National Oceanic and Atmospheric Administration, the American agency that tracks worldwide temperatures, announced Wednesday that last month had been the hottest September on record, and in fact took the biggest leap above the previous September that any month has displayed since 1880, when tracking began at a global scale. The agency also announced that the January-to-September period had been the hottest such span on the books.

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A recent cartoon for New Scientist.

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theidlerhour - Bricolage Brain
Bricolage Brain

"To awaken my spirit through hard work and dedicate my life to knowledge... What do you seek?"

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