Tootfinder

Having just watched #Jaws for the first time in ages, I was stunned by the famous opening sequence ... but not by its cinematography or acting or editing - but by the never-ending chain of in-your-face #continuity errors in lighting once the girl enters the water: one moment we have a low Sun and a red sky, then we have the Sun near the zenith (with a day for night effect) then low again and so on, for several cycles.
Now #Spielberg, is there supposed to be some hidden message here? Well, there isn't.
(Once it's day, fortunately, this problem is gone, and a great movie unfolds, still fresh after 50 years. And I know, you shouldn't mess with a masterpiece, but Lucas added characters to Star Wars IV, and Cameron corrected a wrong star pattern in Titanic, so may be Spielberg could just, for an anniversary special edition ... o.k., I shut up. ;-)

Exponential Suppression of the Unruh Effect and Geometric Enhancement in a Fermionic Cavity QED Setup
Vladimir Toussaint
https://arxiv.org/abs/2510.11460 https://

Exponential Suppression of the Unruh Effect and Geometric Enhancement in a Fermionic Cavity QED Setup
The Unruh effect -- the prediction that an accelerated observer perceives the vacuum as a thermal bath -- remains one of the most profound yet experimentally unverified consequences of quantum field theory. This work analyzes the decay of an excited state within a uniformly accelerated cavity to explain the historical null results and identify an alternative measurable signature. We model a massless Dirac field confined to a uniformly accelerated cavity, coupled to an external massive Dirac fie…

Twenty years of blazar monitoring with the INAF radio telescopes
N. Marchili (INAF Istituto di Radioastronomia), S. Righini (INAF Istituto di Radioastronomia - Stazione di Medicina), M. Giroletti (INAF Istituto di Radioastronomia), C. M. Raiteri (INAF Osservatorio Astrofisico di Torino), R. P. Giri (INAF Istituto di Radioastronomia, Dipartimento di Fisica e Astronomia 'Augusto Righi', Universita' di Bologna), M. I. Carnerero (INAF Osservatorio Astrofisico di Torino), M. Vil…

Twenty years of blazar monitoring with the INAF radio telescopes
The extreme variability of blazars, in both timescale and amplitude, is generally explained as the effect of a relativistic jet closely aligned to the observer's line-of-sight. Due to causality arguments, variability characteristics translate into spatial information about the emitting region of blazars. Since radiation at different wavelengths is emitted in different parts of the jet, multi-frequency observations provide us with a virtual view of the structure of the jet on different scales. R…

Simulating Unruh Radiation in High-Intensity Laser-Electron Interactions for Near-Term Experimental Tests
Rafi Hessami, Haidar Al-Naseri, Monika Yadav, Maanas Hemanth Oruganti, Brian Naranjo, James Rosenzweig
https://arxiv.org/abs/2509.07386

Simulating Unruh Radiation in High-Intensity Laser-Electron Interactions for Near-Term Experimental Tests
The Unruh effect predicts that a uniformly accelerating observer perceives the vacuum as a thermal bath, yet direct observation remains elusive [1]. We simulate Unruh radiation in realistic high-intensity laser-electron collisions relevant to FACET-II and LUXE using fully three-dimensional Monte Carlo methods. In our model, Unruh emission is treated as scattering from a rest-frame thermal spectrum with Klein-Nishina cross sections, while nonlinear Compton radiation is computed across many harmo…