Showing posts with label Physics. Show all posts
Showing posts with label Physics. Show all posts

Thursday, 17 January 2013

Wednesday, 28 November 2012

Space Portals

Apparently space portals aren't so science-fiction after all, and are actually real, according to NASA...

NASA THEMIS spacecraft and some European probes seem to be detecting portals that are magnetic, and which open and close several times a day. They're linked from the Earth's magnetic field and go all the way to the Sun, over 90 million miles away. The whole idea of it is explained in this video :

The text of the video and some other info is on this page : Hidden Portals in Earth's Magnetic Field

Other links for reference :

THEMIS - Understanding Space Weather - NASA

Heliophysics - Studying the Sun-Earth Connection - NASA

Saturday, 10 November 2012

"There Is No Such Thing As Time"

An article from Popular Science that offers a new way of looking at the concept of time:

Julian Barbour's solution to the problem of time in physics and cosmology is as simply stated as it is radical: there is no such thing as time.

"If you try to get your hands on time, it's always slipping through your fingers," says Barbour. "People are sure time is there, but they can't get hold of it. My feeling is that they can't get hold of it because it isn't there at all." Barbour speaks with a disarming English charm that belies an iron resolve and confidence in his science. His extreme perspective comes from years of looking into the heart of both classical and quantum physics. Isaac Newton thought of time as a river flowing at the same rate everywhere. Einstein changed this picture by unifying space and time into a single 4-D entity. But even Einstein failed to challenge the concept of time as a measure of change. In Barbour's view, the question must be turned on its head. It is change that provides the illusion of time. Channeling the ghost of Parmenides, Barbour sees each individual moment as a whole, complete and existing in its own right. He calls these moments "Nows."

Source "There Is No Such Thing As Time" - Popular Science