Author Archives: crisisinphysics

Fixing the Nobel prize for LIGO/gravitational-waves comes unstuck

They got the application in by the 31 January deadline, stimulated a lot of endorsements and swept up an array of other awards – Gruber Cosmology Prize, the Kavli Prize in Astrophysics, the Shaw Prize in Astronomy, Special Breakthrough Prize … Continue reading

Posted in gravitation | Tagged , , , , , , | 3 Comments

Do details in LIGO’s signals distinguish ‘frozen stars’ from ‘black hole’ interpretations

R. J. Spivey argues that “Coincident down-chirps in GW150914 betray the absence of event  horizons”.  The LIGO discovery is said to confirm Einstein’s gravitation theory, yet Einstein (in 1939) gave mathematical grounds for dismissing the notion that black holes exist, … Continue reading

Posted in gravitation | Tagged , , , , , | 1 Comment

Second Gravitational Wave signal – Coalescing binary components, not Black Holes

Following the February discovery, a second signal was found by the same LIGO team in the ‘noise’, by looking for a pulse of waves of increasing frequency in the two detectors.  This pulse is longer (~55 waves compared with ~10 previously) … Continue reading

Posted in gravitation | Tagged , , , , | Leave a comment

Gruber Prize for LIGO team’s gravitational waves

The 2016 Gruber Cosmology Prize of $500 000 award citation reads: The Gruber Foundation proudly presents the 2016 Cosmology Prize to Rainer Weiss, Kip Thorne, Ronald Drever, and the entire LIGO team for pursuing a vision to observe the universe … Continue reading

Posted in gravitation | Tagged , , , , , | Leave a comment

LIGO scientists row back on claim to detect black-holes from their gravitational signal

It is gradually coming out that LIGO’s main gravitational wave pulse could indicate various types of binary astrophysical systems, as we said on this blog in February. Cardoso et al 2016 point out (Phys Rev Lett. to come) there are … Continue reading

Posted in gravitation | Tagged , , , , | 1 Comment

Gravitational wave event at last – success for Einstein, not black-holes

Detecting gravitational waves after decades of searching and developing more sensitive techniques is a great achievement, in technology as well as the accompanying analysis. What a pity the research teams have sullied the discovery by conflating the detection of a … Continue reading

Posted in gravitation | Tagged , , , , | 2 Comments

Einstein not to blame for the Flow-of-Time deviation

comment on Saving time: Physics killed it. Do we need it back?   New Scientist feature 01 November 2013 by Michael Slezak It’s unfair to blame Einstein for the ‘fatal blow’ to the ‘flow of time’, which some physicists still find problematic.  Lee Smolin argued … Continue reading

Posted in fundamental particle physics, gravitation | Tagged , , , , , , , , | 2 Comments