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Billy Smith boosted
The Kid Should See This 🌈🪐✨
@tksst@fediscience.org  ·  activity timestamp 2 days ago

🪲💧 Ripple #bugs live their entire lives on the surface of streams, pivoting in less than the blink of an eye while stirring the #water beneath them into swirling vortices.

#Biomechanics researcher Víctor Ortega-Jiménez spent five years figuring out their secret: feather-like oars on their middle legs that deploy and collapse in just 10 milliseconds. Engineers are now building small #robots that mimic these water-skating abilities.

👉 Learn more: https://thekidshouldseethis.com/post/ripple-bugs-robots-skate-on-water-fan-feet-vortex-physics?utm_source=mastodon&utm_medium=social&utm_campaign=new_content&utm_content=ripple_bugs

#biomimicry #physics #engineering #insects #biology #science #animals #Berkeley #discovery #innovation #nature #research #technology #tech #tksst #video

The Kid Should See This

How do these ripple bugs (and robots) skate on water?

Walking on water seems impossible, an act that defies physics, but ripple bugs live their entire lives on the surface of creeks and streams. They move
Your browser does not support the video tag.
GIF
GIF
A ripple bug creates visible circular vortices in the water behind it as it moves across the surface, with the wake pattern showing multiple swirling disturbances in the blue water.
A ripple bug creates visible circular vortices in the water behind it as it moves across the surface, with the wake pattern showing multiple swirling disturbances in the blue water.
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The Kid Should See This 🌈🪐✨
@tksst@fediscience.org  ·  activity timestamp 2 days ago

🪲💧 Ripple #bugs live their entire lives on the surface of streams, pivoting in less than the blink of an eye while stirring the #water beneath them into swirling vortices.

#Biomechanics researcher Víctor Ortega-Jiménez spent five years figuring out their secret: feather-like oars on their middle legs that deploy and collapse in just 10 milliseconds. Engineers are now building small #robots that mimic these water-skating abilities.

👉 Learn more: https://thekidshouldseethis.com/post/ripple-bugs-robots-skate-on-water-fan-feet-vortex-physics?utm_source=mastodon&utm_medium=social&utm_campaign=new_content&utm_content=ripple_bugs

#biomimicry #physics #engineering #insects #biology #science #animals #Berkeley #discovery #innovation #nature #research #technology #tech #tksst #video

The Kid Should See This

How do these ripple bugs (and robots) skate on water?

Walking on water seems impossible, an act that defies physics, but ripple bugs live their entire lives on the surface of creeks and streams. They move
Your browser does not support the video tag.
GIF
GIF
A ripple bug creates visible circular vortices in the water behind it as it moves across the surface, with the wake pattern showing multiple swirling disturbances in the blue water.
A ripple bug creates visible circular vortices in the water behind it as it moves across the surface, with the wake pattern showing multiple swirling disturbances in the blue water.
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joene 🏴🍉 boosted
theNameless
@JustUs4Pali@mastodon.social  ·  activity timestamp 3 weeks ago

"When speech about Palestine has been smeared as “antisemitic” and prohibited, an entire constituency of #students has likewise experienced the silencing of their #grief, which is too often bypassed even in the discourse of #socialjustice. #Palestine is here at UC #Berkeley, as well as there, in the ongoing Israeli #genocide in #Gaza."

https://truthout.org/articles/computer-science-lecturer-at-berkeley-is-on-day-36-of-his-hunger-strike-for-gaza/

#tears4palestine #hungerstrike

Truthout

Computer Science Lecturer at Berkeley Is on Day 36 of His Hunger Strike for Gaza

UC Berkeley turned lecturer Peyrin Kao’s name over to Trump, but that hasn’t stopped Kao’s solidarity organizing.
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theNameless
@JustUs4Pali@mastodon.social  ·  activity timestamp 3 weeks ago

"When speech about Palestine has been smeared as “antisemitic” and prohibited, an entire constituency of #students has likewise experienced the silencing of their #grief, which is too often bypassed even in the discourse of #socialjustice. #Palestine is here at UC #Berkeley, as well as there, in the ongoing Israeli #genocide in #Gaza."

https://truthout.org/articles/computer-science-lecturer-at-berkeley-is-on-day-36-of-his-hunger-strike-for-gaza/

#tears4palestine #hungerstrike

Truthout

Computer Science Lecturer at Berkeley Is on Day 36 of His Hunger Strike for Gaza

UC Berkeley turned lecturer Peyrin Kao’s name over to Trump, but that hasn’t stopped Kao’s solidarity organizing.
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beka valentine boosted
merlin / alex glow
@alexglow@chaos.social  ·  activity timestamp last month

Danggg! 4.6 in the East Bay: https://earthquake.usgs.gov/earthquakes/eventpage/nc75240492/map

Fill out a "Did you feel it?" report to help with building a picture of the event: https://earthquake.usgs.gov/earthquakes/eventpage/nc75240492/tellus

#BayArea #Oakland #Berkeley #earthquake

A zoomed-in map from the USGS, with lines radiating from an orange star near Bushrod Park in Oakland.
A zoomed-in map from the USGS, with lines radiating from an orange star near Bushrod Park in Oakland.
A zoomed-in map from the USGS, with lines radiating from an orange star near Bushrod Park in Oakland.
A screenshot from the USGS/UCB Seismic Nets, showing a map of the Bay Area with a big red square over much of Oakland and Berkeley, plus numbers showing a magnitude 4.6 in the last hour, 2km ESE of Berkeley.
A screenshot from the USGS/UCB Seismic Nets, showing a map of the Bay Area with a big red square over much of Oakland and Berkeley, plus numbers showing a magnitude 4.6 in the last hour, 2km ESE of Berkeley.
A screenshot from the USGS/UCB Seismic Nets, showing a map of the Bay Area with a big red square over much of Oakland and Berkeley, plus numbers showing a magnitude 4.6 in the last hour, 2km ESE of Berkeley.
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merlin / alex glow
@alexglow@chaos.social  ·  activity timestamp last month

Danggg! 4.6 in the East Bay: https://earthquake.usgs.gov/earthquakes/eventpage/nc75240492/map

Fill out a "Did you feel it?" report to help with building a picture of the event: https://earthquake.usgs.gov/earthquakes/eventpage/nc75240492/tellus

#BayArea #Oakland #Berkeley #earthquake

A zoomed-in map from the USGS, with lines radiating from an orange star near Bushrod Park in Oakland.
A zoomed-in map from the USGS, with lines radiating from an orange star near Bushrod Park in Oakland.
A zoomed-in map from the USGS, with lines radiating from an orange star near Bushrod Park in Oakland.
A screenshot from the USGS/UCB Seismic Nets, showing a map of the Bay Area with a big red square over much of Oakland and Berkeley, plus numbers showing a magnitude 4.6 in the last hour, 2km ESE of Berkeley.
A screenshot from the USGS/UCB Seismic Nets, showing a map of the Bay Area with a big red square over much of Oakland and Berkeley, plus numbers showing a magnitude 4.6 in the last hour, 2km ESE of Berkeley.
A screenshot from the USGS/UCB Seismic Nets, showing a map of the Bay Area with a big red square over much of Oakland and Berkeley, plus numbers showing a magnitude 4.6 in the last hour, 2km ESE of Berkeley.
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Alan Boyle
@alanboyle@mastodon.social  ·  activity timestamp last month

Scientists are learning how special #brain cells play a role in detecting #illusions - and such studies could eventually reveal how #hallucinations arise, or point the way to better computer vision systems. https://www.geekwire.com/2025/laser-light-brain-cells-illusions/ HT @span AllenInstitute#Science#Neuroscience#Berkeley#AllenInstitute

Neuroscientist Jerome Lecoq points to graphic that was used in a study of illusion perception
Neuroscientist Jerome Lecoq points to graphic that was used in a study of illusion perception
Neuroscientist Jerome Lecoq points to graphic that was used in a study of illusion perception
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It's Going Down boosted
Scott Campbell
@susurros@kolektiva.social  ·  activity timestamp last month

"The University of California (UC), Berkeley in the United States has provided information on more than 150 faculty members and students to President Donald Trump’s administration, as part of a federal investigation into 'alleged incidents of anti-Semitism' on college campuses nationwide."

https://www.aljazeera.com/news/2025/9/13/uc-berkeley-shares-information-on-160-staff-students-with-us-government

#Palestine#Israel#Berkeley#California #academia #education#USpol

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Scott Campbell
@susurros@kolektiva.social  ·  activity timestamp last month

"The University of California (UC), Berkeley in the United States has provided information on more than 150 faculty members and students to President Donald Trump’s administration, as part of a federal investigation into 'alleged incidents of anti-Semitism' on college campuses nationwide."

https://www.aljazeera.com/news/2025/9/13/uc-berkeley-shares-information-on-160-staff-students-with-us-government

#Palestine#Israel#Berkeley#California #academia #education#USpol

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