general theory of relativity - Root Privileges

Root Privileges

general theory of relativity

A collection of 5 posts

Albert Einstein

Can gravitational waves be waylaid by gravity?

Yesterday, I learnt the answer is ‘yes’. Gravitational waves can be gravitationally lensed. It seems obvious once you think about it, but not something that strikes you (assuming you’re not a physicist) right away. When physicists solve problems relating to the spacetime continuum, they imagine it as a four-dimensional

general theory of relativity

Onto drafting the gravitational history of the universe

It’s finally happening. As the world turns, as our little lives wear on, gravitational wave detectors quietly eavesdrop on secrets whispered by colliding blackholes and neutron stars in distant reaches of the cosmos, no big deal. It’s going to be just another day. On November 15, the LIGO

accelerating expansion of our universe

A universe out of sight

Two things before we begin: 1. The first subsection of this post assumes that humankind has colonised some distant extrasolar planet(s) within the observable universe, and that humanity won’t be wiped out in 5 billion years. 2. Both subsections assume a pessimistic outlook, and neither projections they dwell

Parsing Ajay Sharma v. E = mc2

Featured image credit: saulotrento/Deviantart, CC BY-SA 3.0. To quote John Cutter (Michael Caine) from The Prestige: Every magic trick consists of three parts, or acts. The first part is called the pledge, the magician shows you something ordinary. The second act is called the turn, the magician takes

Albert Einstein

Feeling the pulse of the space-time continuum

The Copernican April 17, 2014 Haaaaaave you met PSR B1913+16? The first three letters of its name indicate it’s a pulsating radio source, an object in the universe that gives off energy as radio waves at very specific periods. More commonly, such sources are known as pulsars, a