Interesting videos about science
- Thread starter Pierre
- Start date
The Most Complex Origami Ever
Geometry is key. 
Not an video, just a drawing:
In 2022, Wageningen University, in the Netherlands, digitized and put online 1,180 drawings from 40 years of research on the root system of plants and therefore that of trees, these large plants whose woody stem branches from a certain height above the ground
In 2022, Wageningen University, in the Netherlands, digitized and put online 1,180 drawings from 40 years of research on the root system of plants and therefore that of trees, these large plants whose woody stem branches from a certain height above the ground
Imagine if he knew about sound wave focusing!
meadow_wind
Jedi Council Member
I'm not sure why, but NASA says:
It's Black Hole Week! Grab your telescopes and get ready for a week of black hole exploration.
Black Hole Week - NASA Science
Goddard scientists created the visualizations on the Discover supercomputer at the NASA Center for Climate Simulation.
The destination is a supermassive black hole with 4.3 million times the mass of our Sun, equivalent to the monster located at the center of our Milky Way galaxy. To simplify the complex calculations, the black hole is not rotating.
A flat, swirling cloud of hot, glowing gas called an accretion disk surrounds the black hole and serves as a visual reference during the fall. So do glowing structures called photon rings, which form closer to the black hole from light that has orbited it one or more times. A backdrop of the starry sky as seen from Earth completes the scene.
The project generated about 10 terabytes of data — equivalent to roughly half of the estimated text content in the Library of Congress — and took about 5 days running on just 0.3% of Discover’s 129,000 processors. The same feat would take more than a decade on a typical laptop.
This video reminded me of a transcript in which Ark was working on a theory:
It's Black Hole Week! Grab your telescopes and get ready for a week of black hole exploration.
Black Hole Week - NASA Science
Hang out at the event horizon with us this week
Come and learn about these strange balls of gravity here and on social media. Check out the links below to find our latest content and follow the #BlackHoleWeek hashtag on social media for even more content. No matter where you go this week, we hope that you’ll find yourself teetering on the edge of the event horizon — just don’t fall in!Monday, May 6
Welcome to the event horizon! Let’s get close to one and see what it would look like.Tuesday, May 7
All black holes have an event horizon, and the object’s mass defines the size of the horizon. Learn about black holes of all sizes, big and small.Wednesday, May 8
Even though light can’t escape once it’s inside the event horizon, we can still detect black holes by monitoring their effects on their surroundings. Follow along to find out more.
NASA Simulation’s Plunge Into a Black Hole: Explained
This new, immersive visualization produced on a NASA supercomputer represents a scenario where a camera — a stand-in for a daring astronaut — enters the event horizon, sealing its fate.Goddard scientists created the visualizations on the Discover supercomputer at the NASA Center for Climate Simulation.
The destination is a supermassive black hole with 4.3 million times the mass of our Sun, equivalent to the monster located at the center of our Milky Way galaxy. To simplify the complex calculations, the black hole is not rotating.
A flat, swirling cloud of hot, glowing gas called an accretion disk surrounds the black hole and serves as a visual reference during the fall. So do glowing structures called photon rings, which form closer to the black hole from light that has orbited it one or more times. A backdrop of the starry sky as seen from Earth completes the scene.
The project generated about 10 terabytes of data — equivalent to roughly half of the estimated text content in the Library of Congress — and took about 5 days running on just 0.3% of Discover’s 129,000 processors. The same feat would take more than a decade on a typical laptop.
This video reminded me of a transcript in which Ark was working on a theory:
Ever heard of Imputation, Contextualization, Ecological inference, or Synthetic control?
Well, those fancy terms describe how you can make up data to publish in articles or scientific papers.
Now, who would have thought that this would be a thing in science...? This video does a good job of explaining how this works, and how it is exploited.
Well, those fancy terms describe how you can make up data to publish in articles or scientific papers.
Now, who would have thought that this would be a thing in science...? This video does a good job of explaining how this works, and how it is exploited.
PabloAngello
Jedi Master
Imo this is huge:
Also from his website:
drmichaellevin.org
Also from his website:
Frequently Asked Questions - Latest Version
The Levin Lab: investigating information storage and processing in biological systems
drmichaellevin.org
meadow_wind
Jedi Council Member
That's very interesting! Here's an excerpt of the video transcript covering the most important part, for people who don't have time to watch the video:Imo this is huge:
Also from his website:
Frequently Asked Questions - Latest Version
The Levin Lab: investigating information storage and processing in biological systems
Q: "if I understand you right, what you're saying is that most of biology today has sort of taken place trying to do the equivalent of machine code programming, of understanding the biochemical signals between individual cells, there's this electrical language, which, if you could understand that, that would give us a completely different set of insights into how organisms are developing.
DNA is not controlling the actual final shape of these organisms."
A: "We turned on and off the little transistors -- they're actual ion channel proteins -- that every cell natively uses to set up this electrical state. So now we have ways to turn them on and off, and when you do this, one of the things you can do is, you can shift that circuit to a state that says "build two heads/ build no heads".
We generated two head worms and we did a crazy experiment. You take one of these two-headed worms and chop off both heads; you leave just the normal middle fragment. You ask what is it going to do in plain water, and the standard paradigm would say, the genome is not edited so it should make a perfectly normal worm.
These worms, when cut again and again, in the future, in plain water, they continue to regenerate as two-headed.
The pattern memory to which these animals will regenerate after damage has been permanently rewritten. And in fact, we can now write it back and send them back to being one-headed without any genomic editing.
So this right here is telling you that the information structure that tells these worms how many heads they're supposed to have is not directly in the genome. It is in this additional bioelectric layer."
PabloAngello
Jedi Master
@meadow_wind Thank you for that.
And yeah its amazing, it shows that reprogramming the biological code can be done by some sort of electromagnetic waves. Like information (software) is in steer behind the matter (hardware). [If I understand it right].
And yeah its amazing, it shows that reprogramming the biological code can be done by some sort of electromagnetic waves. Like information (software) is in steer behind the matter (hardware). [If I understand it right].
meadow_wind
Jedi Council Member
@PabloAngello You are welcome! I thought it was of interest to the forum members since many transcript speaks of proteins being antennas. Thus, this research seems important and might have been skipped by other members without any description of the video content.
