Five Stages…

Topics: Astrophysics, Cosmology, Einstein, General Relativity, Star Trek Note: One of the things you find out about sophomore, or junior year in physics is faster-than-light travel violates causality: the arrow of time points forward, not in “loop-de-loop.” Thus, we can suspend belief as every version of Trek did time travel episodes, because superluminal speeds wouldContinue reading “Five Stages…”

Black Hole Storm…

Topics: Astrophysics, Black Holes, Cosmology, Einstein, General Relativity Note: From comments on a previous post, maybe science writers need to work on their chosen list of metaphors? In the far reaches of the Universe, a supermassive black hole is throwing a tantrum. It’s blowing a tremendous wind into intergalactic space, and we’re seeing the stormContinue reading “Black Hole Storm…”

Adversary, Friendly, or Neutral…

Topics: Aerodynamics, Applied Physics, Biology, Exoplanets, General Relativity, SETI May 17, 2019-┬áNo, little green men aren’t likely after the conquest of humanity. Boyd’s piece for Phys.org highlights the reason why the Pentagon wants to identify UFOs: they’re unidentified. If a warfighter on the ground or in the sky can’t ID an object, that creates aContinue reading “Adversary, Friendly, or Neutral…”

No Strings Attached…

Topics: Einstein, General Relativity, Quantum Mechanics, String Theory For decades, most physicists have agreed that string theory is the missing link between Einstein’s theory of general relativity, describing the laws of nature at the largest scale, and quantum mechanics, describing them at the smallest scale. However, an international collaboration headed by Radboud physicists has nowContinue reading “No Strings Attached…”