Dave Pentecost
@davepentecost.bsky.social
Nature, tech, music. Maya (civilization), Unity, OpenSpace, visionOS, planetariums. Previously: composer, TV editor, jungle explorer.
Pinned
Dave Pentecost
@davepentecost.bsky.social
· Nov 11
Reposting this from my replies. It's the dome theater, also known as a planetarium, at CultVR in Cardiff, Wales, and the technology I am currently researching to build my second one...
I’ve become obsessed with making a low cost, DIY planetarium dome with a negative pressure screen. With the right pattern of gores, the screen (and outside cover) could be made of Tyvek. Here’s the math.
www.themathdoctors.org/making-a-sph...
www.themathdoctors.org/making-a-sph...
Making a Sphere from Flat Material – The Math Doctors
www.themathdoctors.org
November 15, 2025 at 4:04 PM
I’ve become obsessed with making a low cost, DIY planetarium dome with a negative pressure screen. With the right pattern of gores, the screen (and outside cover) could be made of Tyvek. Here’s the math.
www.themathdoctors.org/making-a-sph...
www.themathdoctors.org/making-a-sph...
Reposted by Dave Pentecost
Happy birthday Wendy Carlos 🎂
📷 Leonard M. DeLessio, 1979
"For me, she’s a hero. Not only is she a pioneer in electronic music, but she’s also a pioneer of living with grace, courage, & personal conviction in the modern age."
- Jonny Pierce
📷 Leonard M. DeLessio, 1979
"For me, she’s a hero. Not only is she a pioneer in electronic music, but she’s also a pioneer of living with grace, courage, & personal conviction in the modern age."
- Jonny Pierce
November 15, 2025 at 1:30 AM
Happy birthday Wendy Carlos 🎂
📷 Leonard M. DeLessio, 1979
"For me, she’s a hero. Not only is she a pioneer in electronic music, but she’s also a pioneer of living with grace, courage, & personal conviction in the modern age."
- Jonny Pierce
📷 Leonard M. DeLessio, 1979
"For me, she’s a hero. Not only is she a pioneer in electronic music, but she’s also a pioneer of living with grace, courage, & personal conviction in the modern age."
- Jonny Pierce
Reposted by Dave Pentecost
Here is an alpha release of Fabric, my open source node based creative coding & prototyping env.
github.com/Fabric-Proje...
Enjoyed Quartz Composer, or want a more intuitive node based tool? Check it out, & help build w me!
#swift, #swiftui #metal, #realtime, #gpu #graphics
github.com/Fabric-Proje...
Enjoyed Quartz Composer, or want a more intuitive node based tool? Check it out, & help build w me!
#swift, #swiftui #metal, #realtime, #gpu #graphics
Releases · Fabric-Project/Fabric
Node Creative Coding / 3D / Image Processing tool inspired by Quartz Composer - Fabric-Project/Fabric
github.com
November 14, 2025 at 10:27 PM
Calle Real de Guadelupe, last night
November 14, 2025 at 6:07 PM
Calle Real de Guadelupe, last night
Great thread on this wonderful composer. We are proud to know another truly American composer, David Amram - 95 this month, still composing, performing, inspiring.
Remembering Aaron Copland on his birthday 🎂
📷 Irving Penn, 1979
"He has never turned out bad work, nor worked without an inspiration. His stance is that not only of a professional but also of an artist - responsible, prepared, giving of his best."
- Virgil Thomson
📷 Irving Penn, 1979
"He has never turned out bad work, nor worked without an inspiration. His stance is that not only of a professional but also of an artist - responsible, prepared, giving of his best."
- Virgil Thomson
November 14, 2025 at 6:01 PM
Great thread on this wonderful composer. We are proud to know another truly American composer, David Amram - 95 this month, still composing, performing, inspiring.
Reposted by Dave Pentecost
We need videos from optical gas imaging cameras for CO₂ emissions.
What you see without an OGI camera vs what you see with an OGI camera.
What you are seeing in a plume of methane and VOCs.
You can see how it is so easy for them to ignore the ongoing systemic methane pollution.
What you are seeing in a plume of methane and VOCs.
You can see how it is so easy for them to ignore the ongoing systemic methane pollution.
November 13, 2025 at 6:14 PM
We need videos from optical gas imaging cameras for CO₂ emissions.
Reposted by Dave Pentecost
From: One by One (2004), dir. Pixote Hunt and Dave Bossert, Walt Disney Feature Animation
November 13, 2025 at 3:04 AM
From: One by One (2004), dir. Pixote Hunt and Dave Bossert, Walt Disney Feature Animation
Reposted by Dave Pentecost
Alexander Calder, Cat Lamp, 1928
https://botfrens.com/collections/14377/contents/1136802
https://botfrens.com/collections/14377/contents/1136802
November 13, 2025 at 1:37 AM
Alexander Calder, Cat Lamp, 1928
https://botfrens.com/collections/14377/contents/1136802
https://botfrens.com/collections/14377/contents/1136802
Back in my DIY dome frame of mind. This Sketchfab creator has great models.
sketchfab.com/daliadome/mo...
sketchfab.com/daliadome/mo...
3D models by daliadome
View 3D models by daliadome
sketchfab.com
November 12, 2025 at 6:59 PM
Back in my DIY dome frame of mind. This Sketchfab creator has great models.
sketchfab.com/daliadome/mo...
sketchfab.com/daliadome/mo...
Reposted by Dave Pentecost
POV: Earth’s solar defense system pushed to the limit last night
November 12, 2025 at 4:46 PM
POV: Earth’s solar defense system pushed to the limit last night
I knew it was an agave, did not know it was a century plant, which blooms every 10-30 years, until two weeks ago. 6 feet growth of the flower stalk in 2 weeks. Will check it again in January.
November 12, 2025 at 2:24 AM
I knew it was an agave, did not know it was a century plant, which blooms every 10-30 years, until two weeks ago. 6 feet growth of the flower stalk in 2 weeks. Will check it again in January.
Reposted by Dave Pentecost
Not now, Carnivorous Death-Ball
Carnivorous 'death-ball' among odd deep-sea finds. 🧪 www.bbc.co.uk/news/article...
Carnivorous 'death-ball' sponge is team's oddest deep-sea find
The unusual creature lurks more than two miles (3.2km) deep in a trench in the Southern Ocean.
www.bbc.co.uk
November 11, 2025 at 2:15 PM
Not now, Carnivorous Death-Ball
Thread
Why are planetary scientists, astrobiologists and and SETI scientists so negative (pissed off, even) about Avi Loeb’s repeated claims that 3I/Atlas may be an invading alien spaceship?
🧵
🧪🔭🛸
(1/7)
🧵
🧪🔭🛸
(1/7)
November 11, 2025 at 1:47 AM
Thread
Yes we’re a little over with the Beatles, but come on. This is sweet and simple. Some great versions of familiar tunes.
Always really enjoyed the version of She's A Woman McCartney did on MTV Unplugged years later www.youtube.com/watch?v=B1kv...
Paul McCartney Unplugged Japanese Tv Broadcast
YouTube video by ZorroViejo1980
www.youtube.com
November 10, 2025 at 12:56 PM
Yes we’re a little over with the Beatles, but come on. This is sweet and simple. Some great versions of familiar tunes.
Reposted by Dave Pentecost
Today in the @thestar.com, I wrote about the 50th anniversary of the wreck of the Edmund Fitzgerald, and the story behind “The Wreck of the Edmund Fitzgerald”—and how what you hear on the Gordon Lightfoot classic is actually the 1st time his band ever played the song www.thestar.com/entertainmen...
No chorus? No problem: The improbable story behind Gordon Lightfoot’s beloved hit ‘The Wreck of the Edmund Fitzgerald’
The song, recorded 50 years ago, commemorates the sinking of the biggest ship on the Great Lakes.
www.thestar.com
November 8, 2025 at 3:12 PM
Today in the @thestar.com, I wrote about the 50th anniversary of the wreck of the Edmund Fitzgerald, and the story behind “The Wreck of the Edmund Fitzgerald”—and how what you hear on the Gordon Lightfoot classic is actually the 1st time his band ever played the song www.thestar.com/entertainmen...
A group of tourists at Tikal were watching, and recording, a group of coatimundis when a jaguar came out and grabbed one (of the coatis) coming within feet of one watcher.
Scroll down to the video.
www.publinews.gt/virales/2025...
Scroll down to the video.
www.publinews.gt/virales/2025...
Jaguar caza a un coatí ante turistas en Tikal, Petén
Jaguar cazando coatí sorprende a turistas en el Parque Nacional Tikal.
www.publinews.gt
November 9, 2025 at 2:02 AM
A group of tourists at Tikal were watching, and recording, a group of coatimundis when a jaguar came out and grabbed one (of the coatis) coming within feet of one watcher.
Scroll down to the video.
www.publinews.gt/virales/2025...
Scroll down to the video.
www.publinews.gt/virales/2025...
Reposted by Dave Pentecost
A Sharon Begley byline, almost 5 years after her death.
Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."
Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
🧪🧬🧫
Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."
Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
🧪🧬🧫
James Watson, dead at 97, was a scientific legend and a pariah among his peers
James Watson, the co-discoverer of the structure of DNA who died Thursday at 97, was a scientific legend and a pariah among his peers.
www.statnews.com
November 8, 2025 at 1:39 PM
A Sharon Begley byline, almost 5 years after her death.
Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."
Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
🧪🧬🧫
Upon hearing the news James Watson had died, a STAT reporter said in our Slack, "I wish I could read what Sharon would have written."
Incredible news: Sharon in fact did pre-write a Watson obit. And it is masterful and excoriating.
🧪🧬🧫
Reposted by Dave Pentecost
Overturned Blue Shoe with Two Heels Under a Black Vault by Jean Arp, 1921
https://botfrens.com/collections/212/contents/137527
https://botfrens.com/collections/212/contents/137527
November 8, 2025 at 3:05 AM
Overturned Blue Shoe with Two Heels Under a Black Vault by Jean Arp, 1921
https://botfrens.com/collections/212/contents/137527
https://botfrens.com/collections/212/contents/137527
Reposted by Dave Pentecost
Socialism is what they called public power.
Socialism is what they called social security.
Socialism is what they called the growth of free and independent labor organizations.
Socialism is their name for almost anything that helps all the people.
—Harry Truman, 1952
Socialism is what they called social security.
Socialism is what they called the growth of free and independent labor organizations.
Socialism is their name for almost anything that helps all the people.
—Harry Truman, 1952
November 7, 2025 at 9:30 PM
Socialism is what they called public power.
Socialism is what they called social security.
Socialism is what they called the growth of free and independent labor organizations.
Socialism is their name for almost anything that helps all the people.
—Harry Truman, 1952
Socialism is what they called social security.
Socialism is what they called the growth of free and independent labor organizations.
Socialism is their name for almost anything that helps all the people.
—Harry Truman, 1952
Maya site believed to represent the cosmos, report www.science.org/doi/10.1126/...
November 7, 2025 at 12:24 AM
Maya site believed to represent the cosmos, report www.science.org/doi/10.1126/...
Wish I was there to see and hear. But we'll be back soon.
The East Village is hootin and hollerin
November 5, 2025 at 2:52 AM
Wish I was there to see and hear. But we'll be back soon.
Reposted by Dave Pentecost
Damn bro, do you ever feel like your eyes have seen the have seen the glory of the coming of the Lord? Like He is trampling out the vintage where the grapes of wrath are stored??
November 5, 2025 at 2:46 AM
Damn bro, do you ever feel like your eyes have seen the have seen the glory of the coming of the Lord? Like He is trampling out the vintage where the grapes of wrath are stored??
Last Eddie Harris I posted was the upbeat. This one is the down. Rocking, angry, and suits this moment.
"Try to make it real, compared to what?"
www.youtube.com/watch?v=pejJ...
"Try to make it real, compared to what?"
www.youtube.com/watch?v=pejJ...
Les McCann & Eddie Harris Compared To What?
YouTube video by BLUES AND SOUL
www.youtube.com
November 4, 2025 at 8:10 PM
Last Eddie Harris I posted was the upbeat. This one is the down. Rocking, angry, and suits this moment.
"Try to make it real, compared to what?"
www.youtube.com/watch?v=pejJ...
"Try to make it real, compared to what?"
www.youtube.com/watch?v=pejJ...