Einstein's trick can be explained in very simple terms: he simulates gravity using acceleration, since acceleration generates forces as well, as occur in a rapidly accelerating lift, for example. If the lift car was soundproof and lightproof, people could think that terrestrial gravity had sudden...
"We found that to have created waves with such tiny frequencies, the transition would have to be supercool," Fowlie explained. However, there is a problem. Such cosmic supercool transition phases would be a bit unexpected during the period of rapid cosmic inflation (in other words, the univ...
action=click>ype=vhs&version=vhs-heading&module=vhs®ion=title-area) Here is a link to a didactic explanation of gravitational waves by the folks at PhD Comics: [Gravitational Waves Explained ](https://www.youtube.com/watch?v=4GbWfNHtHRg) Signal-to-noise ratio (abbreviated SNR or S/...
they are garbage). However, if you want to check for what we might have missed, these may be a place to start. Some of these can be explained away as
In February of 2016, scientists at the Laser Interferometer Gravitational-wave Observatory (LIGO) made history by announcing the first-ever detection of gravitational waves (GWs). These ripples in the very fabric of the Universe, which are caused by black hole mergers or white dwarfs colliding, ...
During its first four months of taking data, Advanced LIGO has detected gravitational waves from two binary black hole mergers, GW150914 and GW151226, along with the statistically less significant binary black hole merger candidate LVT151012. Here we use
In 1964, Shapiro, an American scholar, made radar waves pass the edge of the Sun. They reached Venus on the other side of the Sun and were reflected back to Earth. The actual time of travel was more than 200 microseconds longer than expected[9]. ...
theelectromagneticwavetravelinginthespace,theelectromagneticfieldinthespacedoesnotchangethespatialmovement.Changesintheelectromagneticfieldisequivalenttothepropagationofmechanicalwavesindielectricmediainthevibration,thevibrationofthemediumwhile,butthemediaitselfisnotmoving.Electromagneticwavesrelativetothemachinetoplaytheroleof...
For S2D0, we find that the disk is indeed gravi- tationally unstable: density waves steepen quickly, and dense clumps of dusty gas form before one orbital period elapses. A simple way to portray instability is to track the maximum dust density max Σd versus time — this is done in ...
I would be very grateful if you either confirmed them or explained when and why they are wrong: - In any theory - be it on gravitation or otherwise - where the action is an integral over space-time, there exists a locally covariantly conserved SET - The SET can always be derived from...