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martedì 30 gennaio 2024
# gst: analogy between quasi-2D and 3D liquid drops.
martedì 31 gennaio 2023
# gst: analogy between streamers in sinking spheroids, gyrotactic plumes and chemotactic collapse (when a plume structure blows up when a parm is above a threshold)
giovedì 29 febbraio 2024
# gst: an analogy between geometrical frustrations and nonreciprocal systems
giovedì 8 agosto 2024
# gst: when a continuous attractor could survive seemingly destructive bifurcations
lunedì 27 maggio 2024
# gst: approaching 'size doppelgangers'
mercoledì 6 settembre 2023
# gst: chimera resonance, in analogy with the effects of stochastic and coherence resonance
martedì 9 maggio 2023
# life: exponential post-Donald (without Donald), how AI could interfere (drive) next political elections.
venerdì 1 ottobre 2021
# ai: perpetual nirvana among 'self-addicted', 'self-cracked', 'playful' machines, the wireheading effect.
martedì 14 novembre 2017
# gst: a striking analogy between solid–solid and solid–drop frictions
AA << report that the lateral adhesion force between a liquid drop and a solid can also be divided into a static and a kinetic regime. This striking analogy with solid–solid friction is a generic phenomenon that holds for liquids of different polarities and surface tensions on smooth, rough and structured surfaces >>
Nan Gao, Florian Geyer, et al. How drops start sliding over solid surfaces. Nature Physics doi: 10.1038/nphys4305 Nov 6, 2017
https://www.nature.com/articles/nphys4305
AA << acknowledges that their experiments are just the beginning in trying to fully understand the nature of friction between drops and solid objects >>
Bob Yirka. Droplet friction found to be similar to that of solid objects. Nov 8, 2017
https://m.phys.org/news/2017-11-droplet-friction-similar-solid.html
mercoledì 17 aprile 2024
# life: oops! AI - artificial intelligence - now beats humans at basic tasks.
giovedì 25 gennaio 2024
# behav: mechanics of fire ant rafts as an active self-healing membrane
domenica 6 marzo 2016
# s-brain: no, they can't upload
<< According to a spectacularly misleading article in the Telegraph: Scientists discover how to ‘upload knowledge to your brain’ >>
http://www.telegraph.co.uk/technology/2016/03/01/scientists-discover-how-to-download-knowledge-to-your-brain/
<< Except… that’s not what happened at all. >.
<< The press release from HRL Laboratories about the study seems to be the source of most of the errors, including the Matrix analogy >>
http://blogs.discovermagazine.com/neuroskeptic/2016/03/06/we-cant-upload-to-your-brain/
more:
now you can #learn; the begin https://t.co/LFJ4XVqNCS
https://mobile.twitter.com/flashontrack/status/701345918457663488
venerdì 25 novembre 2022
# life; Qui una ipotesi sulla rete d'eventi d'ipotetica entità [AB] disconnessa da entità [CO] a suo tempo cooptata dalla stessa [AB].
venerdì 4 maggio 2018
# gst phys rmx : finding inspiration in atmospheric whistles (to stop particles to run away)
<< The challenge of fusion energy is often equated to capturing- and holding-lightning in a bottle. The analogy is apt. Lightning and a fusion energy plasma have a lot in common >> [1]
AA << found another characteristic shared between the two types of plasmas: an odd electromagnetic wave known as a whistler >> [1]
<< Intermittent bursts of activity indicate that whistlers are interacting with relativistic electrons in a cyclic manner >> [1]
<< The mode amplitudes show intermittent time variations correlated with changes in the electron cyclotron emission that follow predator-prey cycles >> [2]
<< the Team thinks there is a way to inject whistlers into a plasma to control runaway electrons. The whistlers would bleed energy from the particles, making them less likely to run away. The whistlers would bleed energy from the particles, making them less likely to run away.>> [1]
[1] - US Department of Energy. Fusion scientists find inspiration in atmospheric whistles. May 3, 2018. https://m.phys.org/news/2018-05-fusion-scientists-atmospheric.html
[2] - Spong DA, Heidbrink WW, et al. First Direct Observation of Runaway-Electron-Driven Whistler Waves in Tokamaks. Phys. Rev. Lett. 120, 155002 - Publ. Apr 11, 2018. https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.120.155002
lunedì 17 ottobre 2022
# life: a proposito di bizzarri scenari, qui un ipotetico scenario22 dipinto dal reale ...
sabato 16 febbraio 2019
# qubit: an energy control approach to build quantum computers: quickly jump two rungs at a time without spilling any water from the glass
<< Dr. Sergey Danilin, (..) describes quantum control-the process of using chips like transmons to build quantum computers-by extending the "climbing a ladder" analogy. "To get a useful quantum system, you need to imagine climbing a ladder while holding a glass of water-it works if one does it smoothly, but if you do it too fast, the water spills. Certainly, this requires a special skill." (..) in the quantum world, the trick for climbing the ladder quickly without spilling any water is by carefully jumping two rungs at a time. >>
Life on the edge in the quantum world. Aalto University. Feb 8, 2019
https://m.phys.org/news/2019-02-life-edge-quantum-world.html
Antti Vepsalainen, Sergey Danilin, Gheorghe Sorin Paraoanu. Superadiabatic population transfer in a three-level superconducting circuit. Science Advances Feb 8, 2019:
Vol. 5, no. 2, eaau5999
doi: 10.1126/sciadv.aau5999
http://advances.sciencemag.org/content/5/2/eaau5999
Also
mercoledì 13 marzo 2024
# brain: apropos of mandering minds, the 'default mode' network.
venerdì 23 giugno 2017
# s-gst: coupled solitons jiggle like molecules
<< The first direct observations of how "molecules of light" can vibrate have been made by >> AA << who have characterized the motions of soliton laser pulses that interact with each other in an optical fibre >>
Hamish Johnston. 'Molecules' of light wiggle and jiggle. Jun 19, 2017.
http://physicsworld.com/cws/article/news/2017/jun/19/molecules-of-light-wiggle-and-jiggle
AA << map the internal motion of a soliton pair molecule [..] revealing different categories of internal pulsations, including vibrationlike and phase drifting dynamics >>
AA results << agree well with numerical predictions and bring insights to the analogy between self-organized states of lights and states of the matter >>
Katarzyna Krupa, K. Nithyanandan, et al. Real-Time Observation of Internal Motion within Ultrafast Dissipative Optical Soliton Molecules. Phys. Rev. Lett. 118, 243901 doi: 10.1103/PhysRevLett.118.243901 Publ. 13 June 2017.
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.118.243901