child-of-thecosmos:

On Black Holes

I should warn you that we are entering uncharted scientific territory. For all we know, there may be undiscovered laws of physics that govern events at the center of the black hole. But until the next Einstein comes along, let’s perform a thought experiment.

If you could survive the trip into a black hole, you might emerge in another place and time in our own universe, circumventing the first commandment of relativity: Thou shall not travel faster than light.

Nothing can move through space faster than light, but space is not near emptiness. It has properties. It can stretch and shrink. It can be deformed. And when that happens, time is deformed, too.

Einstein discovered that space and time are just two aspects of the same thing - space-time. Space-time itself can deform enough to carry you anywhere at any speed. Black holes may very well be tunnels through the universe.

On this intergalactic subway system, you can travel through the farthest reaches of space-time. Or you might arrive in some place even more amazing.

We might find ourselves in an all together different universe. But how can a whole universe fit inside of a black hole, which is only a small part of our universe? It’s another magic trick of space-time. The phenomenal gravity of a black hole can warp the space of an entire universe inside it. Our local gravity may be a drag to us, but it’s really feeble compared with what goes inside of a collapsed star.

As far as we know, when a giant star collapses to make a black hole, the extreme density and pressure at the center mimic the Big Bang, which gave rise to our universe. And a universe inside a black hole might give rise to its own black holes, and those could lead to other universes.

Maybe that’s how our own cosmos came to be.

- Episode 5: A Sky Full Of Ghosts, Cosmos: A SpaceTime Odyssey

notenoughtosurvive:

unamusedsloth:

Nude Portraits series by photographer Trevor Christensen

This is my new favorite thing

ask-light-rainbow-and-others:

this is why brain isn’t the main character…

the-merry-rochesterian:

Fangirl Challenge: Favorite Actresses {6/10}

———► Dame Maggie Smith

Dame Maggie Smith is flawless.

ambisagrus:

no image has ever described my life quite so well

ambisagrus:

no image has ever described my life quite so well

darkhist:

glow blog

darkhist:

glow blog

miniwowdood:

Ok this is fabulous

miniwowdood:

Ok this is fabulous

You act like your job is so hard! You only push two or three buttons, and you’re DONE!
(via clientsfromhell)
tastefullyoffensive:

"Leaf me alone." [wingnut4772]

tastefullyoffensive:

"Leaf me alone." [wingnut4772]

gaarak:

Cause and Effect (requested by pete-quaife)

sunshinychick:

futurescope:

Solar energy that doesn’t block the view

A team of researchers at Michigan State University has developed a new type of solar concentrator that when placed over a window creates solar energy while allowing people to actually see through the window. It is called a transparent luminescent solar concentrator and can be used on buildings, cell phones and any other device that has a clear surface. And, according to Richard Lunt of MSU’s College of Engineering, the key word is “transparent.”

[read more at MSU] [paper] [picture credit: Yimu Zhao]

sunshinychick:

futurescope:

Solar energy that doesn’t block the view

A team of researchers at Michigan State University has developed a new type of solar concentrator that when placed over a window creates solar energy while allowing people to actually see through the window. It is called a transparent luminescent solar concentrator and can be used on buildings, cell phones and any other device that has a clear surface. And, according to Richard Lunt of MSU’s College of Engineering, the key word is “transparent.”

[read more at MSU] [paper] [picture credit: Yimu Zhao]

image

thefrogman:

[video] [h/t: lawebloca]