Gravitational Mockeries

With all the rumors flying around that gravitational waves have finally been discovered by LIGO Laser Interferometer Gravitational-Wave Observatory), one cannot help feel that this is a repeat of the BICEP2 (Background Imaging of Cosmic Extragalactic Polarization 2) fiasco.

 

Gravitational Waves Require Non-Newtonian Gravity

In their book, "Gravity", Poisson and Will claim that the "principle of equivalence forbids the very existence of a 'gravitational Poynting vector' ", There is an equivalence principle for every occasion. The equivalence principle that they are referring to claims that a free-falling observer would not notice a gravitational field let alone a gravitational flux vector. So without a flux of gravitational energy how can there be an energy balance equation? let alone gravitational waves?

What is the difference between a "Doppler" redshift and a "gravitational" or "cosmological" redshift? (Advanced)

The title is taken from

http://curious.astro.cornell.edu/physics/104-the-universe/cosmology-and-the-big-bang/expansion-of-the-universe/610-what-is-the-difference-between-the-doppler-redshift-and-the-gravitational-or-cosmological-redshift-advanced

and the answer they give is simply one of distance! In the "nearby" case where a body is moving away from the earth it is merely Doppler shifted. The uniform motion causes a change in the frequency of when it was emitted and when it was received.

The Quest for Gravity Waves Is On!

The BBC has just announced that the Lisa Pathfinder is about to launch, and the quest for gravity waves is to begin. It's main purpose, as we are told, is to "detect gravitational waves---what are sometimes referred to as ripples in the curvature of space-time." If these ripples are anything like ripples on the surface of a pond, then why aren't gravitational waves longitudinal, like water or sound waves? This would do away with the supposed polarization of gravity waves, as they have been assumed to be transverse.

G is a Fundamental Constant!

A recent study by astronomers using the NSF Green Bank Telescope conducted a 21-year study to measure the Pulsar J1713+0747's tick-by-tick timing and found that G---Newton's universal gravitational constant---is really "universal". Unwittingly, these scientists also showed that gravitational waves do not exist, for if they did, their radiation would disrupt the otherwise stable orbit of the puslar about its companion white dwarf.

Does Gravity Need A Magnetic Field?

 

Having succeeded in formulating his equations governing the electric and magnetic fields of electrodynamics, Maxwell attempted to affront the problem of gravity. He quickly found the nagging point: whereas two particles of the same charge need (positive) work from the field to bring them closer together, two masses require (negative) work to keep them apart. Why particles of opposite charge are excluded is due to the electroneutrality of the universe. To get unlike charges, you must separate them from particles of opposite charge.

When Science Fiction Meets Cosmology

Alan Guth said that inflation was the ultimate “free lunch”. Not so judging from the slew of popular science books on cosmology. Just look at some of the titles: “Before the Big Bang”, “God and the Multiverse”, “Cosmology on Trial: Cracking the Cosmic Code”, “Cosmic Coincidences”, “Star Trek: Neutron Stars, Anti-Matter, and other Topics in Physics” (that's a good one!), “The Singular Universe and the Reality of Time”, “Big Bang Big God”, etc. And just look at their glowing reviews and soaring sales on kindle. What more can I say?