#shear — Public Fediverse posts

Scrubbing Bubbles

Cleaning produce helps fruits and vegetables last longer and reduces the chances for foodborne illness. But it can be a difficult feat with soft, delicate foods like tomatoes, berries, or greens. Current methods often combine ultrasonic cleaning and chemicals like chlorine. Instead, researchers are looking to boost the cleaning power of bubbles themselves by giving them an acoustic pick-me-up.

The team combined a bubble-filled bath with sound at low (sub-cavitation) frequencies. They found that driving sound waves at the right frequency could vibrate the bubbles in a way that made them slide in a stop-and-go motion along inclined surfaces. This swaying significantly boosted their cleaning power; getting surfaces 90% cleaner than non-resonating bubbles did. (Image credit: S. Hok/Cornell University; video and research credit: Y. Lin et al.; via Gizmodo)

Scrubbing Bubbles

Cleaning produce helps fruits and vegetables last longer and reduces the chances for foodborne illness. But it can be a difficult feat with soft, delicate foods like tomatoes, berries, or greens. Current methods often combine ultrasonic cleaning and chemicals like chlorine. Instead, researchers are looking to boost the cleaning power of bubbles themselves by giving them an acoustic pick-me-up.

The team combined a bubble-filled bath with sound at low (sub-cavitation) frequencies. They found that driving sound waves at the right frequency could vibrate the bubbles in a way that made them slide in a stop-and-go motion along inclined surfaces. This swaying significantly boosted their cleaning power; getting surfaces 90% cleaner than non-resonating bubbles did. (Image credit: S. Hok/Cornell University; video and research credit: Y. Lin et al.; via Gizmodo)

Scrubbing Bubbles

Cleaning produce helps fruits and vegetables last longer and reduces the chances for foodborne illness. But it can be a difficult feat with soft, delicate foods like tomatoes, berries, or greens. Current methods often combine ultrasonic cleaning and chemicals like chlorine. Instead, researchers are looking to boost the cleaning power of bubbles themselves by giving them an acoustic pick-me-up.

The team combined a bubble-filled bath with sound at low (sub-cavitation) frequencies. They found that driving sound waves at the right frequency could vibrate the bubbles in a way that made them slide in a stop-and-go motion along inclined surfaces. This swaying significantly boosted their cleaning power; getting surfaces 90% cleaner than non-resonating bubbles did. (Image credit: S. Hok/Cornell University; video and research credit: Y. Lin et al.; via Gizmodo)

Scrubbing Bubbles

Cleaning produce helps fruits and vegetables last longer and reduces the chances for foodborne illness. But it can be a difficult feat with soft, delicate foods like tomatoes, berries, or greens. Current methods often combine ultrasonic cleaning and chemicals like chlorine. Instead, researchers are looking to boost the cleaning power of bubbles themselves by giving them an acoustic pick-me-up.

The team combined a bubble-filled bath with sound at low (sub-cavitation) frequencies. They found that driving sound waves at the right frequency could vibrate the bubbles in a way that made them slide in a stop-and-go motion along inclined surfaces. This swaying significantly boosted their cleaning power; getting surfaces 90% cleaner than non-resonating bubbles did. (Image credit: S. Hok/Cornell University; video and research credit: Y. Lin et al.; via Gizmodo)

Scrubbing Bubbles

Cleaning produce helps fruits and vegetables last longer and reduces the chances for foodborne illness. But it can be a difficult feat with soft, delicate foods like tomatoes, berries, or greens. Current methods often combine ultrasonic cleaning and chemicals like chlorine. Instead, researchers are looking to boost the cleaning power of bubbles themselves by giving them an acoustic pick-me-up.

The team combined a bubble-filled bath with sound at low (sub-cavitation) frequencies. They found that driving sound waves at the right frequency could vibrate the bubbles in a way that made them slide in a stop-and-go motion along inclined surfaces. This swaying significantly boosted their cleaning power; getting surfaces 90% cleaner than non-resonating bubbles did. (Image credit: S. Hok/Cornell University; video and research credit: Y. Lin et al.; via Gizmodo)

Making Bubbles in Magma

When bubbles form in magma deep below the earth, volcanic eruptions follow. Scientists believe this happens when decompression of the magma allows volatile compounds to come out of solution and form bubbles–just as opening a bottle of seltzer allows carbon dioxide to bubble out. But a new study indicates that decompression may not be the only source of bubbles.

The team found that supersaturated fluids can nucleate bubbles when they’re sheared–even without decompression. They demonstrated this in the lab, not with magma but with a low-temperature magma analog, seen above. The more saturated with volatiles the fluid is, the less shear is needed to trigger bubbles.

Viscous shear is everywhere for magma, so this bubble formation mechanism is likely common. Better understanding how and when bubbles form in magma directly affects predictions for eruptions–especially for determining whether they’re likely to be explosive or effusive. (Image credit: volcano – A. Bonnerdeaux, experiment – O. Roche et al.; research credit: O. Roche et al.; via Physics World)

Making Bubbles in Magma

When bubbles form in magma deep below the earth, volcanic eruptions follow. Scientists believe this happens when decompression of the magma allows volatile compounds to come out of solution and form bubbles–just as opening a bottle of seltzer allows carbon dioxide to bubble out. But a new study indicates that decompression may not be the only source of bubbles.

The team found that supersaturated fluids can nucleate bubbles when they’re sheared–even without decompression. They demonstrated this in the lab, not with magma but with a low-temperature magma analog, seen above. The more saturated with volatiles the fluid is, the less shear is needed to trigger bubbles.

Viscous shear is everywhere for magma, so this bubble formation mechanism is likely common. Better understanding how and when bubbles form in magma directly affects predictions for eruptions–especially for determining whether they’re likely to be explosive or effusive. (Image credit: volcano – A. Bonnerdeaux, experiment – O. Roche et al.; research credit: O. Roche et al.; via Physics World)

Making Bubbles in Magma

When bubbles form in magma deep below the earth, volcanic eruptions follow. Scientists believe this happens when decompression of the magma allows volatile compounds to come out of solution and form bubbles–just as opening a bottle of seltzer allows carbon dioxide to bubble out. But a new study indicates that decompression may not be the only source of bubbles.

The team found that supersaturated fluids can nucleate bubbles when they’re sheared–even without decompression. They demonstrated this in the lab, not with magma but with a low-temperature magma analog, seen above. The more saturated with volatiles the fluid is, the less shear is needed to trigger bubbles.

Viscous shear is everywhere for magma, so this bubble formation mechanism is likely common. Better understanding how and when bubbles form in magma directly affects predictions for eruptions–especially for determining whether they’re likely to be explosive or effusive. (Image credit: volcano – A. Bonnerdeaux, experiment – O. Roche et al.; research credit: O. Roche et al.; via Physics World)

Making Bubbles in Magma

When bubbles form in magma deep below the earth, volcanic eruptions follow. Scientists believe this happens when decompression of the magma allows volatile compounds to come out of solution and form bubbles–just as opening a bottle of seltzer allows carbon dioxide to bubble out. But a new study indicates that decompression may not be the only source of bubbles.

The team found that supersaturated fluids can nucleate bubbles when they’re sheared–even without decompression. They demonstrated this in the lab, not with magma but with a low-temperature magma analog, seen above. The more saturated with volatiles the fluid is, the less shear is needed to trigger bubbles.

Viscous shear is everywhere for magma, so this bubble formation mechanism is likely common. Better understanding how and when bubbles form in magma directly affects predictions for eruptions–especially for determining whether they’re likely to be explosive or effusive. (Image credit: volcano – A. Bonnerdeaux, experiment – O. Roche et al.; research credit: O. Roche et al.; via Physics World)

Making Bubbles in Magma

When bubbles form in magma deep below the earth, volcanic eruptions follow. Scientists believe this happens when decompression of the magma allows volatile compounds to come out of solution and form bubbles–just as opening a bottle of seltzer allows carbon dioxide to bubble out. But a new study indicates that decompression may not be the only source of bubbles.

The team found that supersaturated fluids can nucleate bubbles when they’re sheared–even without decompression. They demonstrated this in the lab, not with magma but with a low-temperature magma analog, seen above. The more saturated with volatiles the fluid is, the less shear is needed to trigger bubbles.

Viscous shear is everywhere for magma, so this bubble formation mechanism is likely common. Better understanding how and when bubbles form in magma directly affects predictions for eruptions–especially for determining whether they’re likely to be explosive or effusive. (Image credit: volcano – A. Bonnerdeaux, experiment – O. Roche et al.; research credit: O. Roche et al.; via Physics World)

@deborahh it is mostly garbage dust afaik aka ikea one man dust bowl fd for certain applications mdf is great - would you repair furniture with advantec? or zip system? poplar? mahogany? #shear wall

@deborahh it is mostly garbage dust afaik aka ikea one man dust bowl fd for certain applications mdf is great - would you repair furniture with advantec? or zip system? poplar? mahogany? #shear wall

@deborahh it is mostly garbage dust afaik aka ikea one man dust bowl fd for certain applications mdf is great - would you repair furniture with advantec? or zip system? poplar? mahogany? #shear wall

@deborahh it is mostly garbage dust afaik aka ikea one man dust bowl fd for certain applications mdf is great - would you repair furniture with advantec? or zip system? poplar? mahogany? #shear wall

On the Mechanics of Wet Sand

Sand is a critical component of many built environments. As most of us learn (via sand castle), adding just the right amount of water allows sand to be quite strong. But with too little water — or too much — sand is prone to collapse. For those of us outside the construction industry, we’re most likely to run into this problem on the beach while digging holes in the sand. In this Practical Engineering video, Grady explains the forces that stabilize and destabilize piled sand and where the dangers of excavation lie. (Video and image credit: Practical Engineering)

#civilEngineering #fluidDynamics #geophysics #granularMaterial #granularMaterial_ #infrastructure #physics #science #shear

On the Mechanics of Wet Sand

Sand is a critical component of many built environments. As most of us learn (via sand castle), adding just the right amount of water allows sand to be quite strong. But with too little water — or too much — sand is prone to collapse. For those of us outside the construction industry, we’re most likely to run into this problem on the beach while digging holes in the sand. In this Practical Engineering video, Grady explains the forces that stabilize and destabilize piled sand and where the dangers of excavation lie. (Video and image credit: Practical Engineering)

#civilEngineering #fluidDynamics #geophysics #granularMaterial #granularMaterial_ #infrastructure #physics #science #shear

On the Mechanics of Wet Sand

Sand is a critical component of many built environments. As most of us learn (via sand castle), adding just the right amount of water allows sand to be quite strong. But with too little water — or too much — sand is prone to collapse. For those of us outside the construction industry, we’re most likely to run into this problem on the beach while digging holes in the sand. In this Practical Engineering video, Grady explains the forces that stabilize and destabilize piled sand and where the dangers of excavation lie. (Video and image credit: Practical Engineering)

#civilEngineering #fluidDynamics #geophysics #granularMaterial #granularMaterial_ #infrastructure #physics #science #shear

On the Mechanics of Wet Sand

Sand is a critical component of many built environments. As most of us learn (via sand castle), adding just the right amount of water allows sand to be quite strong. But with too little water — or too much — sand is prone to collapse. For those of us outside the construction industry, we’re most likely to run into this problem on the beach while digging holes in the sand. In this Practical Engineering video, Grady explains the forces that stabilize and destabilize piled sand and where the dangers of excavation lie. (Video and image credit: Practical Engineering)

#civilEngineering #fluidDynamics #geophysics #granularMaterial #granularMaterial_ #infrastructure #physics #science #shear

On the Mechanics of Wet Sand

Sand is a critical component of many built environments. As most of us learn (via sand castle), adding just the right amount of water allows sand to be quite strong. But with too little water — or too much — sand is prone to collapse. For those of us outside the construction industry, we’re most likely to run into this problem on the beach while digging holes in the sand. In this Practical Engineering video, Grady explains the forces that stabilize and destabilize piled sand and where the dangers of excavation lie. (Video and image credit: Practical Engineering)

#civilEngineering #fluidDynamics #geophysics #granularMaterial #granularMaterial_ #infrastructure #physics #science #shear

Numerical Modelling Of Displacements Induced By Rainfall Infiltration In A Clayey Soil Slope - The Miscano (Southern Italy) Case Study
--
https://doi.org/10.1016/j.compgeo.2025.107267 <-- shared paper
--
#GIS #spatial #mapping #slopeatmosphereinteraction #finiteelementmodel #RainfallInducedLandslides #fullycoupledanalyses #engineeringgeology #geology #massmovement #rainfall #landslide #precipitation #infiltration #risk #hazard #model #modeling #spatialanalysis #Miscano #Italy #soil #hydromechanical #geomorphology #geomorphometry #clay #porewater #water #hydrology #saturation #lithostatic #shear #slideplane #headscarp

Numerical Modelling Of Displacements Induced By Rainfall Infiltration In A Clayey Soil Slope - The Miscano (Southern Italy) Case Study
--
https://doi.org/10.1016/j.compgeo.2025.107267 <-- shared paper
--
#GIS #spatial #mapping #slopeatmosphereinteraction #finiteelementmodel #RainfallInducedLandslides #fullycoupledanalyses #engineeringgeology #geology #massmovement #rainfall #landslide #precipitation #infiltration #risk #hazard #model #modeling #spatialanalysis #Miscano #Italy #soil #hydromechanical #geomorphology #geomorphometry #clay #porewater #water #hydrology #saturation #lithostatic #shear #slideplane #headscarp

Numerical Modelling Of Displacements Induced By Rainfall Infiltration In A Clayey Soil Slope - The Miscano (Southern Italy) Case Study
--
https://doi.org/10.1016/j.compgeo.2025.107267 <-- shared paper
--
#GIS #spatial #mapping #slopeatmosphereinteraction #finiteelementmodel #RainfallInducedLandslides #fullycoupledanalyses #engineeringgeology #geology #massmovement #rainfall #landslide #precipitation #infiltration #risk #hazard #model #modeling #spatialanalysis #Miscano #Italy #soil #hydromechanical #geomorphology #geomorphometry #clay #porewater #water #hydrology #saturation #lithostatic #shear #slideplane #headscarp

Numerical Modelling Of Displacements Induced By Rainfall Infiltration In A Clayey Soil Slope - The Miscano (Southern Italy) Case Study
--
https://doi.org/10.1016/j.compgeo.2025.107267 <-- shared paper
--
#GIS #spatial #mapping #slopeatmosphereinteraction #finiteelementmodel #RainfallInducedLandslides #fullycoupledanalyses #engineeringgeology #geology #massmovement #rainfall #landslide #precipitation #infiltration #risk #hazard #model #modeling #spatialanalysis #Miscano #Italy #soil #hydromechanical #geomorphology #geomorphometry #clay #porewater #water #hydrology #saturation #lithostatic #shear #slideplane #headscarp

Numerical Modelling Of Displacements Induced By Rainfall Infiltration In A Clayey Soil Slope - The Miscano (Southern Italy) Case Study
--
https://doi.org/10.1016/j.compgeo.2025.107267 <-- shared paper
--
#GIS #spatial #mapping #slopeatmosphereinteraction #finiteelementmodel #RainfallInducedLandslides #fullycoupledanalyses #engineeringgeology #geology #massmovement #rainfall #landslide #precipitation #infiltration #risk #hazard #model #modeling #spatialanalysis #Miscano #Italy #soil #hydromechanical #geomorphology #geomorphometry #clay #porewater #water #hydrology #saturation #lithostatic #shear #slideplane #headscarp

SciTech Chronicles. . . . . . . . .Mar 6th, 2025

https://bit.ly/stc030625

#Poisson #polystyrene #polybutylene #shear-rolling #sea-level #EastGRIP #1,500-meter-long #fiber-optic #microcracks #cascade #Keystone-molecules #alderenes #tetrodotoxin #saxitoxin #dimethylsulfoniopropionate #SMBC #advertisements #Hiveworks #profitable #LMC68 #ionized #recurrent #near-infrared

SciTech Chronicles. . . . . . . . .Mar 6th, 2025

https://bit.ly/stc030625

#Poisson #polystyrene #polybutylene #shear-rolling #sea-level #EastGRIP #1,500-meter-long #fiber-optic #microcracks #cascade #Keystone-molecules #alderenes #tetrodotoxin #saxitoxin #dimethylsulfoniopropionate #SMBC #advertisements #Hiveworks #profitable #LMC68 #ionized #recurrent #near-infrared

I'm back! Been a bit busy with life, here's a cute outfit that I found somewhere on the internet

#cute #outfit #shear #NSFW #sketch #art #boobs #sexy

Will #OpenAI video-stream #ChatGPT conversations now? #Shear #Altman

Will #OpenAI video-stream #ChatGPT conversations now? #Shear #Altman

Will #OpenAI video-stream #ChatGPT conversations now? #Shear #Altman

TheOnion: Aide Pulls Several Wet Pages Of Bill Out Of Dianne Feinstein’s Mouth https://www.theonion.com/aide-pulls-several-wet-pages-of-bill-out-of-dianne-fein-1850813961 #diannefeinstein #mitchmcconnell #austinshear #politics #dianne #saliva #shear #aide #chew

Wrote an implementation of the "three shears" non-destructive sprite rotation which may be of some use to retro platform developers.
Source: https://github.com/jarikomppa/spriterotator
A little bit more info: https://cohost.org/sol-hsa/post/1617419-sprite-rotator

#animation #gif #retro #pixels #c++ #gamedev #rotation #shear

Wrote an implementation of the "three shears" non-destructive sprite rotation which may be of some use to retro platform developers.
Source: https://github.com/jarikomppa/spriterotator
A little bit more info: https://cohost.org/sol-hsa/post/1617419-sprite-rotator

#animation #gif #retro #pixels #c++ #gamedev #rotation #shear

Wrote an implementation of the "three shears" non-destructive sprite rotation which may be of some use to retro platform developers.
Source: https://github.com/jarikomppa/spriterotator
A little bit more info: https://cohost.org/sol-hsa/post/1617419-sprite-rotator

#animation #gif #retro #pixels #c++ #gamedev #rotation #shear

Wrote an implementation of the "three shears" non-destructive sprite rotation which may be of some use to retro platform developers.
Source: https://github.com/jarikomppa/spriterotator
A little bit more info: https://cohost.org/sol-hsa/post/1617419-sprite-rotator

#animation #gif #retro #pixels #c++ #gamedev #rotation #shear

Wrote an implementation of the "three shears" non-destructive sprite rotation which may be of some use to retro platform developers.
Source: https://github.com/jarikomppa/spriterotator
A little bit more info: https://cohost.org/sol-hsa/post/1617419-sprite-rotator

#animation #gif #retro #pixels #c++ #gamedev #rotation #shear

The Nuts and Bolts of Nuts and Bolts - If you’re a mechanical engineer, the material covered in this video on the basics ... - https://hackaday.com/2023/04/28/the-nuts-and-bolts-of-nuts-and-bolts/ #mechanicalengineering #mischacks #preload #tension #thread #torque #joint #screw #shear #bolt #nut

The Nuts and Bolts of Nuts and Bolts - If you’re a mechanical engineer, the material covered in this video on the basics ... - https://hackaday.com/2023/04/28/the-nuts-and-bolts-of-nuts-and-bolts/ #mechanicalengineering #mischacks #preload #tension #thread #torque #joint #screw #shear #bolt #nut

The Nuts and Bolts of Nuts and Bolts - If you’re a mechanical engineer, the material covered in this video on the basics ... - https://hackaday.com/2023/04/28/the-nuts-and-bolts-of-nuts-and-bolts/ #mechanicalengineering #mischacks #preload #tension #thread #torque #joint #screw #shear #bolt #nut

The Nuts and Bolts of Nuts and Bolts - If you’re a mechanical engineer, the material covered in this video on the basics ... - https://hackaday.com/2023/04/28/the-nuts-and-bolts-of-nuts-and-bolts/ #mechanicalengineering #mischacks #preload #tension #thread #torque #joint #screw #shear #bolt #nut

The Nuts and Bolts of Nuts and Bolts - If you’re a mechanical engineer, the material covered in this video on the basics ... - https://hackaday.com/2023/04/28/the-nuts-and-bolts-of-nuts-and-bolts/ #mechanicalengineering #mischacks #preload #tension #thread #torque #joint #screw #shear #bolt #nut

Der CEO von #Twitch Emmett #Shear tritt zurück. Ein Nachfolger wurde schon gefunden: https://derchotv.de/2023/03/17/twitch-ceo-shear-tritt-zurueck/

Der CEO von #Twitch Emmett #Shear tritt zurück. Ein Nachfolger wurde schon gefunden: https://derchotv.de/2023/03/17/twitch-ceo-shear-tritt-zurueck/

Hackaday Links: April 24, 2022 - Wait, what? Is it possible that a tech company just killed off a product with a hu... - https://hackaday.com/2022/04/24/hackaday-links-april-24-2022/ #hackadaycolumns #hackadaylinks #bookbinding #rhodeisland #luxembourg #bricking #insteon #modulus #skiving #cookie #torque #comet #shear #oreo #iot