in 2029
by and by
Apophis flew
its gravity declined
by distance
to the negative two
far too small
to rattle me and you

#poetry
#Apophis
#gravity

It’s Official: Newton’s Gravity Law is True Everywhere Across the Universe - YouTube
https://www.youtube.com/watch?v=vfuYVjdbIio

#Astronomy #Cosmology #Physics #Gravity

Neighborhood livestream is back. The pool leveling project has entered its sequel phase. Same yard, same shovels, same confidence, same laws of physics waiting patiently in the background. I’m just sitting here watching Season 2 of “This Should Have Been Measured First.”

#pool #neighbors #gravity #suburbia #weekend

[ FOLT.IN ] Pool Leveling Simulator: Round 2 https://folt.in/Blog_posts/Pool_leveling

First render in a while. It's a simulation nodes gravity simulation. I went through many phases of overcomplicating it to varying degrees of success before going the absolutely simplest approach of Newtonian gravity with a force filter that drops very close particles to 0 influence (otherwise particles get flung into the Twilight Zone). I cheated a bit and optimized calculation time by using a Merge by Distance in my simulation zone and only calculating the influence from those. It does cause closely-clustered points to have only as much influence as a single point. In another study, I had found a way to make the merged points have the mass of all the points in the merge, but the way that I did it had worse performance than the raw N^2 N-Body calculation.

The color of each particle is simply the absolute value of the velocity, mapping XYZ to RGB.

I should work with Geometry nodes more. They are very stimulating. My real addiction is programming, and I often neglect my art, and geo nodes give me the opportunity to scratch both itches at once.

I wish I could get this one done in Cycles, but it's just too damn slow. Low frame time and denoising alone would make a 30 second render take over 5 hours, and it doesn't really look that much better than Eevee.

#Blender #BlenderEevee #EeveeRenderer #EeveeRender #Video #MotionGraphics #MoGraph #Gravity #GeometryNodes #SimulationNodes #Suzanne #NBody #NBodySimulation

Gravitational waves reveals new information about how black holes behave and evolve

#physics #gravity #LIGO #science

https://www.scientificamerican.com/article/the-age-of-gravitational-astronomy-is-here/

🧲❓ The gravitational constant “Big G” has been part of #physics since 1687, but after 17 modern measurements, scientists still can’t agree on its exact value.

At #NIST in #Maryland, physicist Stephan Schlamminger spent a decade trying – even resorting to a sealed-envelope #experiment to avoid subconscious bias. His team’s result slightly disagrees with the accepted value, keeping the #mystery alive.

👉 https://www.space.com/science/one-of-the-great-unresolved-embarrassments-of-physics-its-been-340-years-since-newton-and-scientists-still-havent-solved-the-secret-of-gravity

#gravity #newton #science #metrology #space #education #stem