#entrainment — Public Fediverse posts

Hot Droplets Bounce

In the Leidenfrost effect, room-temperature droplets bounce and skitter off a surface much hotter than the drop’s boiling point. With those droplets, a layer of vapor cushions them and insulates them from the hot surface. In today’s study, researchers instead used hot or burning drops (above) and observed how they impact a room-temperature surface. While room-temperature droplets hit and stuck (below), hot and burning droplets bounced (above).

In this case, the cushioning air layer doesn’t come from vaporization. Instead, the bottom of the falling drop cools faster than the rest of it, increasing the local surface tension. That increase in surface tension creates a Marangoni flow that pulls fluid down along the edges of the drop. That flow drags nearby air with it, creating the cushioning layer that lets the drop bounce. In this case, the authors called the phenomenon “self-lubricating bouncing.” (Image and research credit: Y. Liu et al.; via Ars Technica)

#bouncingDroplets #dropletImpact #entrainment #fluidDynamics #marangoniEffect #physics #science

Hot Droplets Bounce

In the Leidenfrost effect, room-temperature droplets bounce and skitter off a surface much hotter than the drop’s boiling point. With those droplets, a layer of vapor cushions them and insulates them from the hot surface. In today’s study, researchers instead used hot or burning drops (above) and observed how they impact a room-temperature surface. While room-temperature droplets hit and stuck (below), hot and burning droplets bounced (above).

In this case, the cushioning air layer doesn’t come from vaporization. Instead, the bottom of the falling drop cools faster than the rest of it, increasing the local surface tension. That increase in surface tension creates a Marangoni flow that pulls fluid down along the edges of the drop. That flow drags nearby air with it, creating the cushioning layer that lets the drop bounce. In this case, the authors called the phenomenon “self-lubricating bouncing.” (Image and research credit: Y. Liu et al.; via Ars Technica)

#bouncingDroplets #dropletImpact #entrainment #fluidDynamics #marangoniEffect #physics #science

Hot Droplets Bounce

In the Leidenfrost effect, room-temperature droplets bounce and skitter off a surface much hotter than the drop’s boiling point. With those droplets, a layer of vapor cushions them and insulates them from the hot surface. In today’s study, researchers instead used hot or burning drops (above) and observed how they impact a room-temperature surface. While room-temperature droplets hit and stuck (below), hot and burning droplets bounced (above).

In this case, the cushioning air layer doesn’t come from vaporization. Instead, the bottom of the falling drop cools faster than the rest of it, increasing the local surface tension. That increase in surface tension creates a Marangoni flow that pulls fluid down along the edges of the drop. That flow drags nearby air with it, creating the cushioning layer that lets the drop bounce. In this case, the authors called the phenomenon “self-lubricating bouncing.” (Image and research credit: Y. Liu et al.; via Ars Technica)

#bouncingDroplets #dropletImpact #entrainment #fluidDynamics #marangoniEffect #physics #science

Hot Droplets Bounce

In the Leidenfrost effect, room-temperature droplets bounce and skitter off a surface much hotter than the drop’s boiling point. With those droplets, a layer of vapor cushions them and insulates them from the hot surface. In today’s study, researchers instead used hot or burning drops (above) and observed how they impact a room-temperature surface. While room-temperature droplets hit and stuck (below), hot and burning droplets bounced (above).

In this case, the cushioning air layer doesn’t come from vaporization. Instead, the bottom of the falling drop cools faster than the rest of it, increasing the local surface tension. That increase in surface tension creates a Marangoni flow that pulls fluid down along the edges of the drop. That flow drags nearby air with it, creating the cushioning layer that lets the drop bounce. In this case, the authors called the phenomenon “self-lubricating bouncing.” (Image and research credit: Y. Liu et al.; via Ars Technica)

#bouncingDroplets #dropletImpact #entrainment #fluidDynamics #marangoniEffect #physics #science

Hot Droplets Bounce

In the Leidenfrost effect, room-temperature droplets bounce and skitter off a surface much hotter than the drop’s boiling point. With those droplets, a layer of vapor cushions them and insulates them from the hot surface. In today’s study, researchers instead used hot or burning drops (above) and observed how they impact a room-temperature surface. While room-temperature droplets hit and stuck (below), hot and burning droplets bounced (above).

In this case, the cushioning air layer doesn’t come from vaporization. Instead, the bottom of the falling drop cools faster than the rest of it, increasing the local surface tension. That increase in surface tension creates a Marangoni flow that pulls fluid down along the edges of the drop. That flow drags nearby air with it, creating the cushioning layer that lets the drop bounce. In this case, the authors called the phenomenon “self-lubricating bouncing.” (Image and research credit: Y. Liu et al.; via Ars Technica)

#bouncingDroplets #dropletImpact #entrainment #fluidDynamics #marangoniEffect #physics #science

timing of brain waves shapes the words we hear #LanguageProcessing #neuroscience #entrainment https://medicalxpress.com/news/2024-06-brain-words.html

a hypnotic meditative count to 4 repeated , 8 minutes long. with a isochronic mod to the voice

#hypnosis #brainwave #entrainment #meditation

Making it groove! Entrainment, participation and discrepancy in the'conversation'of a jazz trio

Focusing on a live performance by a jazz trio, this case study examines the wordless dialogical 'groove' between musicians. Building on ethnomusicological theories of interaction in conjunction with the notion of entrainment, the study makes use of in-depth temporal analysis of musical interaction alongside the reported phenomenal experiences of the participating musicians.
This approach provides an intriguing triangulation between subjective experience and 'hard' temporal data and thus moves to a consideration of musical meaning away from the formal properties of a work and towards the dynamic interactions of the players. While the study of pragmatics has undoubtedly been important in the refinement of scholarly research into music performance, this article suggests that a turn to 'groove' may be of use in broadening our conceptions of linguistic interchange.

https://doi.org/10.1179/175975309X452012

#ENTRAINMENT #interaction #intersubjectivity #JAZZ #participatory #discrepancies #Temporality #MUSIC #groove #groovy #jazz