@RunTheSimLab

I make calming, satisfying simulations from real physics, maths and astronomy, plus short stories told with real physics

Joined April 2009
  • Tweets603
  • Following716
  • Followers416K
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Run The Sim retweeted
Run The Sim@RunTheSimLab21h
Sometimes all it takes is one more try. 
But that last one only works because of all the ones before it. 
Don't stop at 99.
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 16
Jupiter has three big moons called Io, Europa and Ganymede, and they're locked in a rhythm 🪐 Every time Ganymede circles Jupiter once, Europa goes around twice and Io four times. Each time two of them line up, they play a note, and together they make a perfect 3-against-2 beat. The glowing lines between Io and Europa slowly bloom into a rosette. Real NASA/JPL data. #jupiter #space #physics #astronomy #science #satisfying
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 14
Math, but make it phonk 🖤
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 13
Every Marble Meets at the Same Point An ellipse has two magic points, its foci. Launch a marble from one, let it bounce once off the ellipse, and it always lands on the other. Every path is the same length, so every marble arrives at the same instant. The music is written to the maths: each harp note is a launch, each bell is a convergence, and the orchestra grows as the marbles multiply.
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 12
Endless marble staircase
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 12
What’s holding you back?
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 11
How long would it take for one water droplet to knock down a 30-metre, 3,620-tonne slab of stone?
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 11
This is why soldiers don't march in step across bridges. 🔊 Every bridge has a natural rhythm it likes to bounce at. When boots hit it at exactly that rhythm, each step adds to the last. It's called resonance, and the swing grows until something gives. In 1831, Broughton Bridge in England collapsed under soldiers marching in step. Ever since, troops get one order before crossing: "Break step."
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 3
Every ball here moves in a straight line
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 10
Each note draws its own pattern, and the higher the note, the more intricate the shape.
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 10
Physics is beautiful 😎😎
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 8
Every marble splits into two on its first bounce. How many can this 4,850-litre glass sphere hold before it bursts under pressure? 💥
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 7
Infinite chocolate 🍫 Where did the extra piece come from?? 🤔
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 7
Some bacteria like E. coli double by binary fission like this under ideal conditions
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 6
Started with one tiny circle. It split into two, and they kept multiplying… Around 4,500 later, he couldn’t hold them back anymore 🔊 Sound on for this one. #PhysicsSimulation #Blender
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 4
Physics is beautiful. See what happens when these chaotic swaying orbs finally find a single rhythm.
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 5
This is what happens when you release 15 pendulums with slightly different lengths at the same time. It’s called a pendulum wave. Sound on for the chimes. 🔊 Created in Blender.
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 4
I included the lines.. do you see it now ? 🤨
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 3
A machine where everyone hits the guy in front.. forever
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Run The Sim retweeted
Run The Sim@RunTheSimLabOct 2
Ever wondered what your key actually does inside a lock?
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